diff --git a/slsDetectorSoftware/generator/commands.yaml b/slsDetectorSoftware/generator/commands.yaml
index 2172d0615..a61934c6d 100644
--- a/slsDetectorSoftware/generator/commands.yaml
+++ b/slsDetectorSoftware/generator/commands.yaml
@@ -2690,6 +2690,17 @@ gaincaps:
           argc: -1
           arg_types: [ defs::defs::M3_GainCaps ]
 
+sleep:
+    is_description: true
+    actions:
+        PUT:
+          args:
+            - argc: 1
+              arg_types: [ int ]
+            - argc: 2
+              arg_types: [ int, special::time_unit ]
+
+
 ################# special commands ##########################
 
 virtual:
diff --git a/slsDetectorSoftware/generator/extended_commands.yaml b/slsDetectorSoftware/generator/extended_commands.yaml
index 32685dcc5..1c0ca76f3 100644
--- a/slsDetectorSoftware/generator/extended_commands.yaml
+++ b/slsDetectorSoftware/generator/extended_commands.yaml
@@ -10042,6 +10042,40 @@ signalname:
     \ to the given name."
   infer_action: true
   template: true
+sleep:
+  actions:
+    PUT:
+      args:
+      - arg_types:
+        - int
+        argc: 1
+        cast_input: []
+        check_det_id: false
+        convert_det_id: true
+        function: ''
+        input: []
+        input_types: []
+        output: []
+        require_det_id: false
+        store_result_in_t: false
+      - arg_types:
+        - int
+        - special::time_unit
+        argc: 2
+        cast_input: []
+        check_det_id: false
+        convert_det_id: true
+        function: ''
+        input: []
+        input_types: []
+        output: []
+        require_det_id: false
+        store_result_in_t: false
+  command_name: sleep
+  function_alias: sleep
+  help: ''
+  infer_action: true
+  is_description: true
 slowadc:
   actions:
     GET:
diff --git a/slsDetectorSoftware/src/Caller.h b/slsDetectorSoftware/src/Caller.h
index 1add3a590..4abde06a7 100644
--- a/slsDetectorSoftware/src/Caller.h
+++ b/slsDetectorSoftware/src/Caller.h
@@ -285,6 +285,7 @@ class Caller {
     std::string signalindex(int action);
     std::string signallist(int action);
     std::string signalname(int action);
+    std::string sleep(int action);
     std::string slowadc(int action);
     std::string slowadcindex(int action);
     std::string slowadclist(int action);
@@ -631,6 +632,7 @@ class Caller {
         {"signalindex", &Caller::signalindex},
         {"signallist", &Caller::signallist},
         {"signalname", &Caller::signalname},
+        {"sleep", &Caller::sleep},
         {"slowadc", &Caller::slowadc},
         {"slowadcindex", &Caller::slowadcindex},
         {"slowadclist", &Caller::slowadclist},
diff --git a/slsDetectorSoftware/src/CallerSpecial.cpp b/slsDetectorSoftware/src/CallerSpecial.cpp
index 3a66053bf..774fd1c8a 100644
--- a/slsDetectorSoftware/src/CallerSpecial.cpp
+++ b/slsDetectorSoftware/src/CallerSpecial.cpp
@@ -5,6 +5,7 @@
 #include "sls/logger.h"
 #include "sls/string_utils.h"
 #include <iostream>
+#include <thread>
 namespace sls {
 // some helper functions to print
 
@@ -1179,4 +1180,37 @@ std::string Caller::gaincaps(int action) {
     }
     return os.str();
 }
+std::string Caller::sleep(int action) {
+    std::ostringstream os;
+    if (action == defs::HELP_ACTION) {
+        os << "[duration] [(optional unit) ns|us|ms|s]\n\tSleep for duration. "
+              "Mainly for config files for firmware developers."
+              "Default unit is s."
+           << '\n';
+    } else if (action == defs::GET_ACTION) {
+        throw RuntimeError("Cannot get.");
+    } else if (action == defs::PUT_ACTION) {
+        if (args.size() != 1 && args.size() != 2) {
+            WrongNumberOfParameters(1);
+        }
+        time::ns converted_time{0};
+        try {
+            if (args.size() == 1) {
+                std::string tmp_time(args[0]);
+                std::string unit = RemoveUnit(tmp_time);
+                converted_time = StringTo<time::ns>(tmp_time, unit);
+            } else {
+                converted_time = StringTo<time::ns>(args[0], args[1]);
+            }
+        } catch (...) {
+            throw RuntimeError("Could not convert argument to time::ns");
+        }
+        std::this_thread::sleep_for(converted_time);
+        os << "for " << ToString(converted_time) << " completed" << '\n';
+    } else {
+        throw RuntimeError("Unknown action");
+    }
+    return os.str();
+}
+
 } // namespace sls
\ No newline at end of file
diff --git a/slsDetectorSoftware/src/inferAction.cpp b/slsDetectorSoftware/src/inferAction.cpp
index edb717e9b..2a747a208 100644
--- a/slsDetectorSoftware/src/inferAction.cpp
+++ b/slsDetectorSoftware/src/inferAction.cpp
@@ -3239,6 +3239,22 @@ int InferAction::signalname() {
     }
 }
 
+int InferAction::sleep() {
+
+    if (args.size() == 1) {
+        return slsDetectorDefs::PUT_ACTION;
+    }
+
+    if (args.size() == 2) {
+        return slsDetectorDefs::PUT_ACTION;
+    }
+
+    else {
+
+        throw RuntimeError("Could not infer action: Wrong number of arguments");
+    }
+}
+
 int InferAction::slowadc() {
 
     if (args.size() == 1) {
diff --git a/slsDetectorSoftware/src/inferAction.h b/slsDetectorSoftware/src/inferAction.h
index 3b0538a3e..f18ba1ac8 100644
--- a/slsDetectorSoftware/src/inferAction.h
+++ b/slsDetectorSoftware/src/inferAction.h
@@ -240,6 +240,7 @@ class InferAction {
     int signalindex();
     int signallist();
     int signalname();
+    int sleep();
     int slowadc();
     int slowadcindex();
     int slowadclist();
@@ -574,6 +575,7 @@ class InferAction {
         {"signalindex", &InferAction::signalindex},
         {"signallist", &InferAction::signallist},
         {"signalname", &InferAction::signalname},
+        {"sleep", &InferAction::sleep},
         {"slowadc", &InferAction::slowadc},
         {"slowadcindex", &InferAction::slowadcindex},
         {"slowadclist", &InferAction::slowadclist},
diff --git a/slsDetectorSoftware/tests/Caller/test-Caller.cpp b/slsDetectorSoftware/tests/Caller/test-Caller.cpp
index 5372c7141..fad23d35a 100644
--- a/slsDetectorSoftware/tests/Caller/test-Caller.cpp
+++ b/slsDetectorSoftware/tests/Caller/test-Caller.cpp
@@ -3586,4 +3586,14 @@ TEST_CASE("CALLER::user", "[.cmdcall]") {
     REQUIRE_NOTHROW(caller.call("user", {}, -1, GET));
 }
 
+TEST_CASE("CALLER::sleep", "[.cmdcall]") {
+    Detector det;
+    Caller caller(&det);
+    REQUIRE_NOTHROW(caller.call("sleep", {"1"}, -1, PUT));
+    REQUIRE_NOTHROW(caller.call("sleep", {"100", "ms"}, -1, PUT));
+    REQUIRE_NOTHROW(caller.call("sleep", {"1000", "ns"}, -1, PUT));
+    // This is a put only command
+    REQUIRE_THROWS(caller.call("sleep", {}, -1, GET));
+}
+
 } // namespace sls
\ No newline at end of file