diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
index 9cee22119..ebb2ec921 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
@@ -573,7 +573,7 @@ void setupDetector() {
         return;
 
     // power off voltage regulators
-    powerOff();
+    powerChip(false);
 
     // adcs
     AD9257_SetDefines(ADC_SPI_REG, ADC_SPI_SRL_CS_OTPT_MSK,
@@ -1270,6 +1270,25 @@ int validateDACIndex(enum DACINDEX ind, char *mess) {
     return OK;
 }
 
+int validateDACValue(enum DACINDEX ind, int voltage, char *mess) {
+    // normal dacs
+    if (ind < NDAC_ONLY) {
+        if (validateDACVoltage(ind, voltage, mess) == FAIL)
+            return FAIL;
+        return OK;
+    }
+    // vchip
+    if (ind == D_PWR_CHIP) {
+        if (validateVchip(voltage, mess) == FAIL)
+            return FAIL;
+        return OK;
+    }
+    // power dacs
+    if (validatePowerDACVoltage(ind, voltage, mess) == FAIL)
+        return FAIL;
+    return OK;
+}
+
 int validateDACVoltage(enum DACINDEX ind, int voltage, char *mess) {
     // validate min value
     if (voltage < 0) {
@@ -1413,10 +1432,23 @@ int setDAC(enum DACINDEX ind, int val, bool mV, char *mess) {
 
     int dacval = val;
     if (mV) {
-        if (ind < NDAC_ONLY) {
-            if (validateDACVoltage(ind, val, mess) == FAIL)
+        if (validateDACValue(ind, val, mess) == FAIL)
+            return FAIL;
+
+        // power dacs
+        if (ind > NDAC_ONLY && ind != D_PWR_CHIP) {
+
+            if (verifyPowerRailDisabled(ind, mess) == FAIL)
+                return FAIL;
+
+            // set vchip accordingly
+            int vchip = 0;
+            if (getVchipToSet(ind, val, &vchip, mess) == FAIL)
+                return FAIL;
+            if (setVchip(vchip, mess) == FAIL)
                 return FAIL;
         }
+
         if (convertVoltageToDACValue(ind, val, &dacval, mess) == FAIL)
             return FAIL;
     }
@@ -1462,9 +1494,6 @@ int getVchip(int *retval, char *mess) {
 
 int setVchip(int val, char *mess) {
     LOG(logINFOBLUE, ("Setting Vchip to %d mV\n", val));
-    if (validateVchip(val, mess) == FAIL)
-        return FAIL;
-
     if (setDAC(D_PWR_CHIP, val, true, mess) == FAIL)
         return FAIL;
 
@@ -1514,32 +1543,32 @@ int getVchipToSet(enum DACINDEX ind, int pwr_val, int *retval_vchip,
     return OK;
 }
 
-int validatePower(enum PWRINDEX ind, int val, char *mess) {
+int validatePower(enum PWRINDEX ind, int voltage, char *mess) {
     char *powerNames[] = {PWR_NAMES};
     // validate min value
     int min = (ind == PWR_IO) ? VIO_MIN_MV : POWER_RGLTR_MIN;
-    if (val < min && val != 0) {
+    if (voltage < min && voltage != 0) {
         sprintf(
             mess,
             "Could not set %s. Input value %d mV must be greater than %d mV.\n",
-            powerNames[ind], val, min);
+            powerNames[ind], voltage, min);
         LOG(logERROR, (mess));
         return FAIL;
     }
     // validate max value
     int max = (VCHIP_MAX_MV - VCHIP_POWER_INCRMNT);
-    if (val > max) {
+    if (voltage > max) {
         sprintf(
             mess,
             "Could not set %s. Input value %d mV must be less than %d mV.\n",
-            powerNames[ind], val, max);
+            powerNames[ind], voltage, max);
         LOG(logERROR, (mess));
         return FAIL;
     }
     // validate vlimit
-    if (vLimit > 0 && val > vLimit) {
+    if (vLimit > 0 && voltage > vLimit) {
         sprintf(mess, "Could not set %s. Input %d mV exceeds vLimit %d mV\n",
-                powerNames[ind], val, vLimit);
+                powerNames[ind], voltage, vLimit);
         LOG(logERROR, (mess))
         return FAIL;
     }
@@ -1574,126 +1603,118 @@ int getPowerIndexFromDACIndex(enum DACINDEX ind, enum PWRINDEX *pwrIndex,
     return OK;
 }
 
-int getPowerRailMask(enum PWRINDEX ind, uint32_t *mask, char *mess) {
-    *mask = 0;
-    switch (ind) {
+int getPowerRailMask(enum PWRINDEX index, uint32_t *mask, char *mess) {
+    switch (index) {
     case PWR_IO:
-        *mask = POWER_ENBL_VIO_MSK;
+        *mask |= POWER_ENBL_VIO_MSK;
         break;
     case PWR_A:
-        *mask = POWER_ENBL_VA_MSK;
+        *mask |= POWER_ENBL_VA_MSK;
         break;
     case PWR_B:
-        *mask = POWER_ENBL_VB_MSK;
+        *mask |= POWER_ENBL_VB_MSK;
         break;
     case PWR_C:
-        *mask = POWER_ENBL_VC_MSK;
+        *mask |= POWER_ENBL_VC_MSK;
         break;
     case PWR_D:
-        *mask = POWER_ENBL_VD_MSK;
+        *mask |= POWER_ENBL_VD_MSK;
         break;
     default:
-        sprintf(mess, "Index %d has no power rail index\n", ind);
+        sprintf(mess, "Index %d has no power rail index\n", index);
         LOG(logERROR, (mess));
         return FAIL;
     }
     return OK;
 }
 
-int EnablePowerRail(enum PWRINDEX ind, char *mess) {
-    char *powerNames[] = {PWR_NAMES};
-    uint32_t addr = POWER_REG;
+int setPowerRailEnabled(enum DACINDEX indices[], int count, bool enable,
+                        char *mess) {
+    // get power indices for log messages and mask
     uint32_t mask = 0;
-
-    if (getPowerRailMask(ind, &mask, mess) == FAIL)
-        return FAIL;
-
-    LOG(logINFO, ("\tSwitching on power for %s\n", powerNames[ind]));
-    bus_w(addr, bus_r(addr) | mask);
-    return OK;
-}
-
-int DisablePowerRail(enum PWRINDEX ind, char *mess) {
-    char *powerNames[] = {PWR_NAMES};
-    uint32_t addr = POWER_REG;
-    uint32_t mask = 0;
-
-    if (getPowerRailMask(ind, &mask, mess) == FAIL)
-        return FAIL;
-
-    LOG(logINFO, ("\tSwitching off power for %s\n", powerNames[ind]));
-    bus_w(addr, bus_r(addr) & ~(mask));
-    return OK;
-}
-
-int getPowerRail(enum PWRINDEX ind, int *retval, char *mess) {
-    char *powerNames[] = {PWR_NAMES};
-    uint32_t addr = POWER_REG;
-    uint32_t mask = 0;
-
-    if (getPowerRailMask(ind, &mask, mess) == FAIL)
-        return FAIL;
-
-    *retval = (bus_r(addr) & mask);
-    LOG(logDEBUG1, ("Power rail retval for %s: %s\n", powerNames[ind],
-                    ((*retval > 0) ? "Enabled" : "Disabled")));
-
-    return OK;
-}
-
-int getPower(enum DACINDEX ind, int *retval, char *mess) {
-    enum PWRINDEX pwrIndex = PWR_IO;
-    if (getPowerIndexFromDACIndex(ind, &pwrIndex, mess) == FAIL)
-        return FAIL;
-
-    // if powered off, return 0
-    if (getPowerRail(pwrIndex, retval, mess) == FAIL)
-        return FAIL;
-    if (*retval == 0) {
-        return OK;
+    enum PWRINDEX pwrIndices[count];
+    for (int i = 0; i != count; ++i) {
+        if (getPowerIndexFromDACIndex(indices[i], &pwrIndices[i], mess) == FAIL)
+            return FAIL;
+        if (getPowerRailMask(pwrIndices[i], &mask, mess) == FAIL)
+            return FAIL;
+    }
+    // log message
+    {
+        char *powerNames[] = {PWR_NAMES};
+        char message[256] = {0};
+        sprintf(message, "Switching %s power for ", enable ? "on" : "off");
+        for (int i = 0; i != count; ++i) {
+            strcat(message, powerNames[pwrIndices[i]]);
+        }
+        strcat(message, "\n");
+        LOG(logINFO, ("%s", message));
     }
 
-    if (getDAC(ind, true, retval, mess) == FAIL)
-        return FAIL;
-    return OK;
-}
-
-int setPower(enum DACINDEX ind, int val, char *mess) {
-    enum PWRINDEX pwrIndex = PWR_IO;
-    if (getPowerIndexFromDACIndex(ind, &pwrIndex, mess) == FAIL)
-        return FAIL;
-
-    char *powerNames[] = {PWR_NAMES};
-    LOG(logINFOBLUE, ("Setting %s to %d mV\n", powerNames[pwrIndex], val));
-
-    if (validatePower(pwrIndex, val, mess) == FAIL)
-        return FAIL;
-
-    // compute vchip to set before powering off
-    int vchip = 0;
-    if (getVchipToSet(ind, val, &vchip, mess) == FAIL)
-        return FAIL;
-
-    if (DisablePowerRail(pwrIndex, mess) == FAIL)
-        return FAIL;
-
-    if (setVchip(vchip, mess) == FAIL)
-        return FAIL;
-
-    if (val != 0) {
-        if (setDAC(ind, val, true, mess) == FAIL)
-            return FAIL;
-
-        if (EnablePowerRail(pwrIndex, mess) == FAIL)
-            return FAIL;
+    uint32_t addr = POWER_REG;
+    if (enable) {
+        bus_w(addr, bus_r(addr) | mask);
+    } else {
+        bus_w(addr, bus_r(addr) & ~(mask));
     }
     return OK;
 }
 
-void powerOff() {
+int isPowerRailEnabled(enum DACINDEX ind, bool *retval, char *mess) {
+    enum PWRINDEX pwrIndex = PWR_IO;
+    if (getPowerIndexFromDACIndex(ind, &pwrIndex, mess) == FAIL)
+        return FAIL;
+
+    int mask = 0;
+    if (getPowerRailMask(ind, &mask, mess) == FAIL)
+        return FAIL;
+
+    *retval = (bus_r(POWER_REG) & mask) != 0;
+    return OK;
+}
+
+int verifyPowerRailDisabled(enum DACINDEX ind, char *mess) {
+    bool isEnabled = false;
+    if (isPowerRailEnabled(ind, &isEnabled, mess) == FAIL)
+        return FAIL;
+
+    if (isEnabled) {
+        enum PWRINDEX pwrIndex = PWR_IO;
+        if (getPowerIndexFromDACIndex(ind, &pwrIndex, mess) == FAIL)
+            return FAIL;
+        char *powerNames[] = {PWR_NAMES};
+        sprintf(mess,
+                "Could not set dac for %s. Please disable the power rail "
+                "before setting the dac value.\n",
+                powerNames[pwrIndex]);
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    return OK;
+}
+
+void powerChip(bool enable) {
     uint32_t addr = POWER_REG;
-    LOG(logINFO, ("Powering off all voltage regulators\n"));
-    bus_w(addr, bus_r(addr) & (~POWER_ENBL_VLTG_RGLTR_MSK));
+    if (enable) {
+        LOG(logINFO, ("Powering on all voltage regulators\n"));
+        bus_w(addr, bus_r(addr) | POWER_ENBL_VLTG_RGLTR_MSK);
+        return;
+    } else {
+        LOG(logINFO, ("Powering off all voltage regulators\n"));
+        bus_w(addr, bus_r(addr) & (~POWER_ENBL_VLTG_RGLTR_MSK));
+    }
+}
+
+int getPowerChip() {
+    int retval = bus_r(POWER_REG) & POWER_ENBL_VLTG_RGLTR_MSK;
+    if (retval == 0)
+        return retval;
+    if (retval == POWER_ENBL_VLTG_RGLTR_MSK)
+        return 1;
+    LOG(logINFO, ("Power chip state is neither fully on nor fully off. Value "
+                  "read: 0x%x\n",
+                  retval));
+    return -1;
 }
 
 int getADC(enum ADCINDEX ind) {
diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.h b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.h
index 7b2a30716..dd142b51d 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.h
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.h
@@ -128,6 +128,8 @@ int setADCVpp(int val, int mV, char *mess);
 int getADCVpp(int mV, int *retval, char *mess);
 
 int validateDACIndex(enum DACINDEX ind, char *mess);
+int validateDACValue(enum DACINDEX ind, int voltage, char *mess);
+
 int validateDACVoltage(enum DACINDEX ind, int voltage, char *mess);
 int convertVoltageToDACValue(enum DACINDEX ind, int voltage, int *retval_dacval,
                              char *mess);
@@ -150,12 +152,12 @@ int validatePower(enum PWRINDEX ind, int val, char *mess);
 int getPowerIndexFromDACIndex(enum DACINDEX ind, enum PWRINDEX *pwrIndex,
                               char *mess);
 int getPowerRailMask(enum PWRINDEX ind, uint32_t *mask, char *mess);
-int EnablePowerRail(enum PWRINDEX ind, char *mess);
-int DisablePowerRail(enum PWRINDEX ind, char *mess);
-int getPowerRail(enum PWRINDEX ind, int *retval, char *mess);
-int getPower(enum DACINDEX ind, int *retval, char *mess);
-int setPower(enum DACINDEX ind, int val, char *mess);
-void powerOff();
+int setPowerRailEnabled(enum DACINDEX indices[], int count, bool enable,
+                        char *mess);
+int isPowerRailEnabled(enum DACINDEX ind, bool *retval, char *mess);
+int verifyPowerRailDisabled(enum DACINDEX ind, char *mess);
+void powerChip(bool enable);
+int getPowerChip();
 
 int getADC(enum ADCINDEX ind);
 int getSlowADC(int ichan);
diff --git a/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h b/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
index 493b1638f..749f6514e 100644
--- a/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
+++ b/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
@@ -341,3 +341,5 @@ int get_pattern_wait_interval(int);
 int set_pattern_wait_interval(int);
 int spi_read(int);
 int spi_write(int);
+int get_power(int);
+int set_power(int);
diff --git a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
index 6d12f309e..618dd90b1 100644
--- a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
+++ b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
@@ -523,6 +523,8 @@ void function_table() {
     flist[F_SET_PATTERN_WAIT_INTERVAL] = &set_pattern_wait_interval;
     flist[F_SPI_READ] = &spi_read;
     flist[F_SPI_WRITE] = &spi_write;
+    flist[F_GET_POWER] = &get_power;
+    flist[F_SET_POWER] = &set_power;
     // check
     if (NUM_DET_FUNCTIONS >= RECEIVER_ENUM_START) {
         LOG(logERROR, ("The last detector function enum has reached its "
@@ -1389,14 +1391,12 @@ int processDACEnums(enum dacIndex ind, int val, bool mV) {
             retval = getVLimit();
         return retval;
 
+    // power dacs
     case V_POWER_A:
     case V_POWER_B:
     case V_POWER_C:
     case V_POWER_D:
     case V_POWER_IO:
-        serverDacIndex = getDACIndex(ind);
-        if (ret == FAIL)
-            return retval;
         if (!mV) {
             ret = FAIL;
             sprintf(mess,
@@ -1406,17 +1406,12 @@ int processDACEnums(enum dacIndex ind, int val, bool mV) {
             LOG(logERROR, (mess));
             return retval;
         }
-        if (val != GET_FLAG)
-            ret = setPower(serverDacIndex, val, mess);
-        else
-            ret = getPower(serverDacIndex, &retval, mess);
-        return retval;
-
     // actual dacs
     default:
         serverDacIndex = getDACIndex(ind);
         if (ret == FAIL)
             return retval;
+
         if (val != GET_FLAG)
             ret = setDAC(serverDacIndex, val, mV, mess);
         else
@@ -1446,14 +1441,12 @@ int processDACEnums(enum dacIndex ind, int val, bool mV) {
             retval = getVLimit();
         return retval;
 
+    // power dacs
     case V_POWER_A:
     case V_POWER_B:
     case V_POWER_C:
     case V_POWER_D:
     case V_POWER_IO:
-        serverDacIndex = getDACIndex(ind);
-        if (ret == FAIL)
-            return retval;
         if (!mV) {
             ret = FAIL;
             sprintf(mess,
@@ -1463,12 +1456,6 @@ int processDACEnums(enum dacIndex ind, int val, bool mV) {
             LOG(logERROR, (mess));
             return retval;
         }
-        if (val != GET_FLAG)
-            ret = setPower(serverDacIndex, val, mess);
-        else
-            ret = getPower(serverDacIndex, &retval, mess);
-        return retval;
-
     // actual dacs
     default:
         serverDacIndex = getDACIndex(ind);
@@ -4018,7 +4005,8 @@ int power_chip(int file_des) {
     LOG(logDEBUG1, ("Powering chip to %d\n", arg));
 
 #if !defined(JUNGFRAUD) && !defined(MOENCHD) && !defined(MYTHEN3D) &&          \
-    !defined(GOTTHARD2D) && !defined(XILINX_CHIPTESTBOARDD)
+    !defined(GOTTHARD2D) && !defined(XILINX_CHIPTESTBOARDD) &&                 \
+    !defined(CHIPTESTBOARDD)
     functionNotImplemented();
 #else
     // set & get
@@ -4037,7 +4025,8 @@ int power_chip(int file_des) {
             }
         }
 #endif
-#if defined(XILINX_CHIPTESTBOARDD) || defined(GOTTHARD2D)
+#if defined(XILINX_CHIPTESTBOARDD) || defined(CHIPTESTBOARDD) ||               \
+    defined(GOTTHARD2D)
         if (ret == OK) {
             if (arg != -1) {
                 if (arg != 0 && arg != 1) {
@@ -11382,4 +11371,68 @@ int spi_write(int file_des) {
     free(local_tx);
     free(local_rx);
     return ret;
+}
+
+int get_power(int file_des) {
+    ret = OK;
+    memset(mess, 0, sizeof(mess));
+    int arg = -1;
+    int retval = -1;
+
+#if !defined(CHIPTESTBOARDD) && !defined(XILINX_CHIPTESTBOARDD)
+    functionNotImplemented();
+#else
+    // index
+    if (receiveData(file_des, &arg, sizeof(arg), INT32) < 0)
+        return printSocketReadError();
+
+    LOG(logDEBUG1, ("Getting power rail enable for power %d\n", arg));
+
+    enum dacIndex serverDacIndex = getDACIndex(dacIndex(arg));
+    if (ret == FAIL) {
+        return Server_SendResult(file_des, INT32, NULL, 0);
+    }
+
+    ret = isPowerRailEnabled(serverDacIndex, &retval, mess);
+#endif
+    return Server_SendResult(file_des, INT32, &retval, sizeof(retval));
+}
+
+int set_power(int file_des) {
+    ret = OK;
+    memset(mess, 0, sizeof(mess));
+
+#if !defined(CHIPTESTBOARDD) && !defined(XILINX_CHIPTESTBOARDD)
+    functionNotImplemented();
+#else
+    int count = 0;
+    if (receiveData(file_des, &count, sizeof(count), INT32) < 0)
+        return printSocketReadError();
+
+    int args[count];
+    if (receiveData(file_des, args, sizeof(args), INT32) < 0)
+        return printSocketReadError();
+
+    int arg = 0;
+    if (receiveData(file_des, &arg, sizeof(arg), INT32) < 0)
+        return printSocketReadError();
+    bool enable = (arg != 0);
+
+    LOG(logDEBUG1, ("Setting %d Power rails to %d\n", count, enable));
+
+    if (Server_VerifyLock() == OK) {
+
+        enum dacIndex serverDacIndices[count] = {0};
+        for (int iPower = 0; iPower != count; ++iPower) {
+            enum dacIndex ind = (dacIndex)args[iPower];
+            serverDacIndices[iPower] = getDACIndex(ind);
+            if (ret == FAIL) {
+                return Server_SendResult(file_des, INT32, NULL, 0);
+            }
+        }
+
+        ret = setPowerRailEnabled(serverDacIndices, count, enable, mess);
+    }
+#endif
+    return Server_SendResult(file_des, INT32, NULL, 0);
 }
\ No newline at end of file
diff --git a/slsDetectorSoftware/include/sls/Detector.h b/slsDetectorSoftware/include/sls/Detector.h
index c4d5b670f..02033c544 100644
--- a/slsDetectorSoftware/include/sls/Detector.h
+++ b/slsDetectorSoftware/include/sls/Detector.h
@@ -535,6 +535,9 @@ class Detector {
     Result<int> getDAC(defs::dacIndex index, bool mV = false,
                        Positions pos = {}) const;
 
+    /** Sets dac in dac units or mV
+     * [Ctb][Xilinx Ctb] also includes V_LIMIT, V_POWER_A, V_POWER_B, V_POWER_C,
+     * V_POWER_D, V_POWER_IO, V_POWER_CHIP (get only)*/
     void setDAC(defs::dacIndex index, int value, bool mV = false,
                 Positions pos = {});
 
@@ -1635,14 +1638,14 @@ class Detector {
     std::vector<defs::dacIndex> getSlowADCList() const;
 
     /** [CTB][Xilinx CTB] */
-    Result<int> getPower(defs::dacIndex index, Positions pos = {}) const;
+    Result<bool> isPowerEnabled(defs::dacIndex index, Positions pos = {}) const;
 
     /**
-     * [CTB][Xilinx CTB] mV
-     * [Ctb][Xilinx CTB] Options: V_LIMIT, V_POWER_A, V_POWER_B, V_POWER_C,
-     * V_POWER_D, V_POWER_IO, V_POWER_CHIP
+     * [Ctb][Xilinx CTB] Options: V_POWER_A, V_POWER_B, V_POWER_C,
+     * V_POWER_D, V_POWER_IO
      */
-    void setPower(defs::dacIndex index, int value, Positions pos = {});
+    void setPowerEnabled(const std::vector<defs::dacIndex> &indices,
+                         bool enable, Positions pos = {});
 
     /**
      * [CTB] Options: [0- 4] or [1V, 1.14V, 1.33V, 1.6V, 2V]
diff --git a/slsDetectorSoftware/src/Detector.cpp b/slsDetectorSoftware/src/Detector.cpp
index 39706ec56..3346e4046 100644
--- a/slsDetectorSoftware/src/Detector.cpp
+++ b/slsDetectorSoftware/src/Detector.cpp
@@ -2188,36 +2188,26 @@ std::vector<defs::dacIndex> Detector::getSlowADCList() const {
         defs::SLOW_ADC4, defs::SLOW_ADC5, defs::SLOW_ADC6, defs::SLOW_ADC7};
 }
 
-Result<int> Detector::getPower(defs::dacIndex index, Positions pos) const {
-    switch (index) {
-    case defs::V_LIMIT:
-    case defs::V_POWER_A:
-    case defs::V_POWER_B:
-    case defs::V_POWER_C:
-    case defs::V_POWER_D:
-    case defs::V_POWER_IO:
-    case defs::V_POWER_CHIP:
-        break;
-    default:
+Result<bool> Detector::isPowerEnabled(defs::dacIndex index,
+                                      Positions pos) const {
+    std::vector<defs::dacIndex> valid_indices = getPowerList();
+    if (std::find(valid_indices.begin(), valid_indices.end(), index) ==
+        valid_indices.end()) {
         throw RuntimeError("Unknown Power Index");
     }
-    return pimpl->Parallel(&Module::getDAC, pos, index, true);
+    return pimpl->Parallel(&Module::getPower, pos, index);
 }
 
-void Detector::setPower(defs::dacIndex index, int value, Positions pos) {
-    switch (index) {
-    case defs::V_LIMIT:
-    case defs::V_POWER_A:
-    case defs::V_POWER_B:
-    case defs::V_POWER_C:
-    case defs::V_POWER_D:
-    case defs::V_POWER_IO:
-    case defs::V_POWER_CHIP:
-        break;
-    default:
-        throw RuntimeError("Unknown Power Index");
+void Detector::setPowerEnabled(const std::vector<defs::dacIndex> &indices,
+                               bool value, Positions pos) {
+    std::vector<defs::dacIndex> valid_indices = getPowerList();
+    for (const auto &index : indices) {
+        if (std::find(valid_indices.begin(), valid_indices.end(), index) ==
+            valid_indices.end()) {
+            throw RuntimeError("Unknown Power Index");
+        }
     }
-    pimpl->Parallel(&Module::setDAC, pos, value, index, true);
+    pimpl->Parallel(&Module::setPower, pos, value, indices);
 }
 
 Result<int> Detector::getADCVpp(bool mV, Positions pos) const {
diff --git a/slsDetectorSoftware/src/Module.cpp b/slsDetectorSoftware/src/Module.cpp
index 29a51f5b4..bebf7e82d 100644
--- a/slsDetectorSoftware/src/Module.cpp
+++ b/slsDetectorSoftware/src/Module.cpp
@@ -819,6 +819,25 @@ void Module::setPowerChip(bool on) {
     sendToDetector<int>(F_POWER_CHIP, static_cast<int>(on));
 }
 
+bool Module::isPowerEnabled(defs::dacIndex index) const {
+    return sendToDetector<int>(F_GET_POWER, index);
+}
+
+void Module::setPowerEnabled(const std::vector<defs::dacIndex> &indices,
+                             bool value) {
+    auto client = DetectorSocket(shm()->hostname, shm()->controlPort);
+    client.Send(F_SET_POWER);
+    client.setFnum(F_SET_POWER);
+    int count = indices.size();
+    client.Send(count);
+    client.Send(indices);
+    client.Send(static_cast<int>(value));
+    if (client.Receive<int>() == FAIL) {
+        throw DetectorError("Detector " + std::to_string(moduleIndex) +
+                            " returned error: " + client.readErrorMessage());
+    }
+}
+
 int Module::getImageTestMode() const {
     return sendToDetector<int>(F_GET_IMAGE_TEST_MODE);
 }
diff --git a/slsDetectorSoftware/src/Module.h b/slsDetectorSoftware/src/Module.h
index 9f75f1765..181355edd 100644
--- a/slsDetectorSoftware/src/Module.h
+++ b/slsDetectorSoftware/src/Module.h
@@ -177,6 +177,9 @@ class Module : public virtual slsDetectorDefs {
     void setDAC(int val, dacIndex index, bool mV);
     bool getPowerChip() const;
     void setPowerChip(bool on);
+    bool isPowerEnabled(defs::dacIndex index) const;
+    void setPowerEnabled(const std::vector<defs::dacIndex> &indices,
+                         bool value);
     int getImageTestMode() const;
     void setImageTestMode(const int value);
     /* temperature in millidegrees */
diff --git a/slsDetectorSoftware/tests/Caller/test-Caller-chiptestboard.cpp b/slsDetectorSoftware/tests/Caller/test-Caller-chiptestboard.cpp
index 22ad78908..0f65e6db3 100644
--- a/slsDetectorSoftware/tests/Caller/test-Caller-chiptestboard.cpp
+++ b/slsDetectorSoftware/tests/Caller/test-Caller-chiptestboard.cpp
@@ -595,6 +595,10 @@ TEST_CASE("dac", "[.detectorintegration][.dacs]") {
                 defs::V_POWER_D, defs::V_POWER_IO};
             for (size_t iPower = 0; iPower < names.size(); ++iPower) {
                 auto prev_val = det.getDAC(indices[iPower], true);
+                auto prev_val_power = det.isPowerEnabled(indices[iPower]);
+
+                // turn them off to be able to set the power dacs without issue
+                det.setPowerEnabled(std::vector{indices[iPower]}, false);
 
                 // this is the first command touching power dacs, should not be
                 // -100
@@ -651,9 +655,17 @@ TEST_CASE("dac", "[.detectorintegration][.dacs]") {
                     REQUIRE(oss2.str() ==
                             "dac " + names[iPower] + " 1200 mV\n");
                 }
+                // throw if trying to set dac when power is on
+                {
+                    det.setPowerEnabled(std::vector{indices[iPower]}, true);
+                    REQUIRE_THROWS(caller.call(
+                        "dac", {names[iPower], "1200", "mV"}, -1, PUT));
+                }
                 // Reset all dacs to previous value
                 for (int imod = 0; imod != det.size(); ++imod) {
                     det.setDAC(indices[iPower], prev_val[imod], true, {imod});
+                    det.setPowerEnabled(std::vector{indices[iPower]},
+                                        prev_val_power[imod], {imod});
                 }
             }
         }
@@ -848,32 +860,38 @@ TEST_CASE("v_limit", "[.detectorintegration]") {
 
     if (det_type == defs::CHIPTESTBOARD ||
         det_type == defs::XILINX_CHIPTESTBOARD) {
-        auto prev_val = det.getPower(defs::V_LIMIT);
+        auto prev_val = det.getDAC(defs::V_LIMIT, true);
+        REQUIRE_THROWS(caller.call("v_limit", {"1200"}, -1, PUT));
+        REQUIRE_THROWS(caller.call("v_limit", {"-100"}, -1, PUT));
+        REQUIRE_THROWS(caller.call("v_limit", {"0"}, -1, PUT));
+        REQUIRE_THROWS(caller.call("v_limit", {"-100", "mV"}, -1, PUT));
+        REQUIRE_THROWS(caller.call("v_limit", {"0", "mV"}, -1, PUT));
+
         {
             std::ostringstream oss;
-            caller.call("v_limit", {"1500"}, -1, PUT, oss);
-            REQUIRE(oss.str() == "v_limit 1500\n");
+            caller.call("v_limit", {"1500", "mV"}, -1, PUT, oss);
+            REQUIRE(oss.str() == "v_limit 1500 mV\n");
         }
         {
             std::ostringstream oss;
-            caller.call("v_limit", {"0"}, -1, PUT, oss);
-            REQUIRE(oss.str() == "v_limit 0\n");
+            caller.call("v_limit", {"0", "mV"}, -1, PUT, oss);
+            REQUIRE(oss.str() == "v_limit 0 mV\n");
         }
         {
             std::ostringstream oss;
-            caller.call("v_limit", {"0"}, -1, PUT, oss);
-            REQUIRE(oss.str() == "v_limit 0\n");
+            caller.call("v_limit", {"0", "mV"}, -1, PUT, oss);
+            REQUIRE(oss.str() == "v_limit 0 mV\n");
         }
         {
             std::ostringstream oss;
             caller.call("v_limit", {}, -1, GET, oss);
-            REQUIRE(oss.str() == "v_limit 0\n");
+            REQUIRE(oss.str() == "v_limit 0 mV\n");
         }
         for (int i = 0; i != det.size(); ++i) {
             if (prev_val[i] == -100) {
                 prev_val[i] = 0;
             }
-            det.setPower(defs::V_LIMIT, prev_val[i], {i});
+            det.setDAC(defs::V_LIMIT, prev_val[i], true, {i});
         }
     } else {
         REQUIRE_THROWS(caller.call("v_limit", {}, -1, GET));
@@ -1147,6 +1165,63 @@ TEST_CASE("v_abcd", "[.detectorintegration]") {
     }
 }
 
+TEST_CASE("power", "[.detectorintegration]") {
+    Detector det;
+    Caller caller(&det);
+    auto det_type = det.getDetectorType().squash();
+    if (det_type == defs::CHIPTESTBOARD ||
+        det_type == defs::XILINX_CHIPTESTBOARD) {
+
+        std::vector<std::string> cmds{"v_a", "v_b",  "v_c",
+                                      "v_d", "v_io", "v_chip"};
+        std::vector<defs::dacIndex> indices{
+            defs::V_POWER_A, defs::V_POWER_B,  defs::V_POWER_C,
+            defs::V_POWER_D, defs::V_POWER_IO, defs::V_POWER_CHIP};
+
+        for (size_t iPower = 0; iPower < cmds.size(); ++iPower) {
+            auto prev_val = det.isPowerEnabled(indices[iPower]);
+
+            REQUIRE_THROWS(caller.call("power", {"vrandom"}, -1, GET));
+            REQUIRE_THROWS(caller.call("power", {"v_chip"}, -1, GET));
+            REQUIRE_THROWS(caller.call("power", {"on", "v_a"}, -1, PUT));
+            {
+                std::ostringstream oss;
+                caller.call("power", {"v_a", "on"}, -1, PUT, oss);
+                REQUIRE(oss.str() == "power v_a on\n");
+            }
+            {
+                std::ostringstream oss;
+                caller.call("power", {"v_a"}, -1, GET, oss);
+                REQUIRE(oss.str() == "power v_a on\n");
+            }
+            {
+                std::ostringstream oss;
+                caller.call("power", {"v_a", "v_c", "on"}, -1, PUT, oss);
+                REQUIRE(oss.str() == "power [v_a, v_c] on\n");
+            }
+            {
+                std::ostringstream oss;
+                caller.call("power", {"v_a", "v_b", "off"}, -1, PUT);
+                caller.call("power", {"v_a", "v_b", "v_c"}, -1, GET, oss);
+                REQUIRE(oss.str() == "power [v_a, v_b, v_c] [on, off, on]\n");
+            }
+            { // power chip
+                caller.call("powerchip", {"1"}, -1, PUT);
+                std::ostringstream oss;
+                caller.call("power", {"v_a", "v_b", "v_c", "v_d", "v_io"}, -1,
+                            GET, oss);
+                REQUIRE(oss.str() == "power [v_a, v_b, v_c, v_d, v_io] on\n");
+            }
+            for (int imod = 0; imod != det.size(); ++imod) {
+                det.setPowerEnabled(std::vector{indices[iPower]},
+                                    prev_val[imod], {imod});
+            }
+        }
+    } else {
+        REQUIRE_THROWS(caller.call("power", {"v_a"}, -1, GET));
+    }
+}
+
 TEST_CASE("vm_a", "[.detectorintegration]") {
     Detector det;
     Caller caller(&det);
diff --git a/slsDetectorSoftware/tests/Caller/test-Caller.cpp b/slsDetectorSoftware/tests/Caller/test-Caller.cpp
index 93c88713e..5e900d407 100644
--- a/slsDetectorSoftware/tests/Caller/test-Caller.cpp
+++ b/slsDetectorSoftware/tests/Caller/test-Caller.cpp
@@ -1548,8 +1548,10 @@ TEST_CASE("powerchip", "[.detectorintegration]") {
 
     if (det_type == defs::JUNGFRAU || det_type == defs::MOENCH ||
         det_type == defs::MYTHEN3 || det_type == defs::GOTTHARD2 ||
-        det_type == defs::XILINX_CHIPTESTBOARD) {
-        auto prev_val = det.getPowerChip();
+        det_type == defs::XILINX_CHIPTESTBOARD ||
+        det_type == defs::CHIPTESTBOARD) {
+        auto prev_val =
+            det.getPowerChip().tsquash("Inconsistent power chip values");
         {
             std::ostringstream oss;
             caller.call("powerchip", {"1"}, -1, PUT, oss);
@@ -1583,7 +1585,7 @@ TEST_CASE("powerchip", "[.detectorintegration]") {
             REQUIRE(oss.str() == "powerchip 0\n");
         }
         for (int i = 0; i != det.size(); ++i) {
-            det.setPowerChip(prev_val[i], {i});
+            det.setPowerChip(prev_val, {i});
             if (det_type == defs::XILINX_CHIPTESTBOARD) {
                 det.configureTransceiver();
             }
diff --git a/slsSupportLib/include/sls/ToString.h b/slsSupportLib/include/sls/ToString.h
index 5b56fbfc9..c7525a156 100644
--- a/slsSupportLib/include/sls/ToString.h
+++ b/slsSupportLib/include/sls/ToString.h
@@ -49,6 +49,7 @@ std::string ToString(const defs::timingInfoDecoder s);
 std::string ToString(const defs::collectionMode s);
 
 std::string ToString(bool value);
+std::string ToString(bool value, defs::boolFormat format);
 
 std::string ToString(const slsDetectorDefs::xy &coord);
 std::ostream &operator<<(std::ostream &os, const slsDetectorDefs::xy &coord);
@@ -335,6 +336,7 @@ template <> uint32_t StringTo(const std::string &s);
 template <> uint64_t StringTo(const std::string &s);
 template <> int StringTo(const std::string &s);
 template <> bool StringTo(const std::string &s);
+bool StringTo(const std::string &s, defs::boolFormat format);
 template <> int64_t StringTo(const std::string &s);
 
 /** For types with a .str() method use this for conversion */
diff --git a/slsSupportLib/include/sls/sls_detector_defs.h b/slsSupportLib/include/sls/sls_detector_defs.h
index a5ccb2566..9e0c80187 100644
--- a/slsSupportLib/include/sls/sls_detector_defs.h
+++ b/slsSupportLib/include/sls/sls_detector_defs.h
@@ -104,6 +104,8 @@ class slsDetectorDefs {
     /**  return values */
     enum { OK, FAIL };
 
+    enum boolFormat { TrueFalse, OnOff, OneZero };
+
     /** staus mask */
     enum runStatus {
         IDLE,
diff --git a/slsSupportLib/include/sls/sls_detector_funcs.h b/slsSupportLib/include/sls/sls_detector_funcs.h
index 9296547de..761f78fb0 100755
--- a/slsSupportLib/include/sls/sls_detector_funcs.h
+++ b/slsSupportLib/include/sls/sls_detector_funcs.h
@@ -301,6 +301,8 @@ enum detFuncs {
     F_SET_PATTERN_WAIT_INTERVAL,
     F_SPI_READ,
     F_SPI_WRITE,
+    F_GET_POWER,
+    F_SET_POWER,
 
     NUM_DET_FUNCTIONS,
     RECEIVER_ENUM_START = 512, /**< detector function should not exceed this
@@ -713,6 +715,9 @@ const char* getFunctionNameFromEnum(enum detFuncs func) {
     case F_SET_PATTERN_WAIT_INTERVAL:       return "F_SET_PATTERN_WAIT_INTERVAL";
     case F_SPI_READ:                        return "F_SPI_READ";
     case F_SPI_WRITE:                       return "F_SPI_WRITE";
+    case F_GET_POWER:                       return "F_GET_POWER";
+    case F_SET_POWER:                       return "F_SET_POWER";
+
 
     case NUM_DET_FUNCTIONS:              	return "NUM_DET_FUNCTIONS";
     case RECEIVER_ENUM_START:				return "RECEIVER_ENUM_START";
diff --git a/slsSupportLib/src/ToString.cpp b/slsSupportLib/src/ToString.cpp
index bfd1220fb..8ff889117 100644
--- a/slsSupportLib/src/ToString.cpp
+++ b/slsSupportLib/src/ToString.cpp
@@ -7,6 +7,17 @@ namespace sls {
 
 std::string ToString(bool value) { return value ? "1" : "0"; }
 
+std::string ToString(bool value, defs::boolFormat format) {
+    switch (format) {
+    case defs::boolFormat::TrueFalse:
+        return value ? "true" : "false";
+    case defs::boolFormat::OnOff:
+        return value ? "on" : "off";
+    default:
+        return value ? "1" : "0";
+    }
+}
+
 std::string ToString(const slsDetectorDefs::xy &coord) {
     std::ostringstream oss;
     oss << '[' << coord.x << ", " << coord.y << ']';
@@ -1189,14 +1200,38 @@ template <> int StringTo(const std::string &s) {
 }
 
 template <> bool StringTo(const std::string &s) {
-    int i = std::stoi(s, nullptr, 10);
-    switch (i) {
-    case 0:
-        return false;
-    case 1:
-        return true;
+    return StringTo(s, defs::boolFormat::OneZero);
+}
+
+bool StringTo(const std::string &s, defs::boolFormat format) {
+    switch (format) {
+    case defs::boolFormat::TrueFalse: {
+        if (s == "true")
+            return true;
+        if (s == "false")
+            return false;
+        throw RuntimeError("Unknown boolean. Expecting 'true' or 'false'.");
+    }
+    case defs::boolFormat::OnOff: {
+        if (s == "on")
+            return true;
+        if (s == "off")
+            return false;
+        throw RuntimeError("Unknown boolean. Expecting 'on' or 'off'.");
+    }
+    case defs::boolFormat::OneZero: {
+        int i = std::stoi(s, nullptr, 10);
+        switch (i) {
+        case 0:
+            return false;
+        case 1:
+            return true;
+        default:
+            throw RuntimeError("Unknown boolean. Expecting 0 or 1.");
+        }
+    }
     default:
-        throw RuntimeError("Unknown boolean. Expecting be 0 or 1.");
+        throw RuntimeError("Unknown boolean format.");
     }
 }
 
diff --git a/slsSupportLib/tests/test-ToString.cpp b/slsSupportLib/tests/test-ToString.cpp
index 76ee87245..3d35004e8 100644
--- a/slsSupportLib/tests/test-ToString.cpp
+++ b/slsSupportLib/tests/test-ToString.cpp
@@ -26,6 +26,24 @@ TEST_CASE("Convert string to bool", "[support]") {
     REQUIRE(StringTo<bool>("0") == false);
 }
 
+TEST_CASE("Convert bool format to string", "[support]") {
+    REQUIRE(ToString(true, defs::boolFormat::TrueFalse) == "true");
+    REQUIRE(ToString(false, defs::boolFormat::TrueFalse) == "false");
+    REQUIRE(ToString(true, defs::boolFormat::OnOff) == "on");
+    REQUIRE(ToString(false, defs::boolFormat::OnOff) == "off");
+    REQUIRE(ToString(true, defs::boolFormat::OneZero) == "1");
+    REQUIRE(ToString(false, defs::boolFormat::OneZero) == "0");
+}
+
+TEST_CASE("Convert string to bool format", "[support]") {
+    REQUIRE(StringTo("1", defs::boolFormat::OneZero) == true);
+    REQUIRE(StringTo("0", defs::boolFormat::OneZero) == false);
+    REQUIRE(StringTo("true", defs::boolFormat::TrueFalse) == true);
+    REQUIRE(StringTo("false", defs::boolFormat::TrueFalse) == false);
+    REQUIRE(StringTo("on", defs::boolFormat::OnOff) == true);
+    REQUIRE(StringTo("off", defs::boolFormat::OnOff) == false);
+}
+
 TEST_CASE("Integer conversions", "[support]") {
     REQUIRE(ToString(0) == "0");
     REQUIRE(ToString(1) == "1");