From 7adec62e611829bc8cac04b48838d245e813e0fa Mon Sep 17 00:00:00 2001
From: Douglas Clowes <dcl@ansto.gov.au>
Date: Mon, 1 Dec 2014 12:59:49 +1100
Subject: [PATCH] Driver for Agilent/Keysight N8740A Power Supply

---
 .../config/environment/keysight_N8740A.sct    |  55 ++
 .../environment/sct_keysight_N8740A.tcl       | 513 ++++++++++++++++++
 2 files changed, 568 insertions(+)
 create mode 100644 site_ansto/instrument/config/environment/keysight_N8740A.sct
 create mode 100644 site_ansto/instrument/config/environment/sct_keysight_N8740A.tcl

diff --git a/site_ansto/instrument/config/environment/keysight_N8740A.sct b/site_ansto/instrument/config/environment/keysight_N8740A.sct
new file mode 100644
index 00000000..ace82c77
--- /dev/null
+++ b/site_ansto/instrument/config/environment/keysight_N8740A.sct
@@ -0,0 +1,55 @@
+# vim: ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
+driver keysight_N8740A = {
+  vendor = keysight; device = N8740A;
+  protocol = std
+  class = environment
+  simulation_group = environment_simulation
+  group = {
+    type = int;
+    var state = {
+      readable = 2; read_command = 'OUTPUT:STATE?';
+      writeable = 1; write_command = 'OUTPUT:STATE ';
+      allowed = '0,1';
+    }
+  }
+  group current = {
+    type = float;
+    var sensor = {
+      readable = 1; read_command = 'MEASURE:CURRENT?';
+      writeable = 1; read_command = 'MEASURE:CURRENT ';
+    }
+    var setpoint = {
+      readable = 1; read_command = 'SOURCE:CURRENT?';
+      writeable = 1; read_command = 'SOURCE:CURRENT ';
+    }
+    var limit = {
+      readable = 1; read_command = 'SOURCE:CURRENT:PROTECTION?';
+      writeable = 1; read_command = 'SOURCE:CURRENT:PROTECTION ';
+    }
+  }
+  group voltage = {
+    type = float;
+    var sensor = {
+      readable = 1; read_command = 'MEASURE:VOLTAGE?';
+      writeable = 1; read_command = 'MEASURE:VOLTAGE ';
+    }
+    var setpoint = {
+      readable = 1; read_command = 'SOURCE:VOLTAGE?';
+      writeable = 1; read_command = 'SOURCE:VOLTAGE ';
+    }
+    var limit = {
+      readable = 1; read_command = 'SOURCE:VOLTAGE:PROTECTION?';
+      writeable = 1; read_command = 'SOURCE:VOLTAGE:PROTECTION ';
+    }
+  }
+  group system = {
+    type = text;
+    data = false; control = false; mutable = false; nxsave = false;
+    var error = {
+        readable = 1; read_command = 'SYSTEM:ERROR?';
+    }
+    var version = {
+        readable = 1; read_command = 'SYSTEM:VERSION?';
+    }
+  }
+}
diff --git a/site_ansto/instrument/config/environment/sct_keysight_N8740A.tcl b/site_ansto/instrument/config/environment/sct_keysight_N8740A.tcl
new file mode 100644
index 00000000..463fc56f
--- /dev/null
+++ b/site_ansto/instrument/config/environment/sct_keysight_N8740A.tcl
@@ -0,0 +1,513 @@
+# Generated driver for keysight_N8740A
+# vim: ft=tcl tabstop=8  softtabstop=2  shiftwidth=2  nocindent  smartindent
+#
+
+namespace eval ::scobj::keysight_N8740A {
+  set debug_threshold 5
+}
+
+proc ::scobj::keysight_N8740A::debug_log {tc_root debug_level debug_string} {
+  set catch_status [ catch {
+    set debug_threshold [hgetpropval ${tc_root} debug_threshold]
+    if {${debug_level} >= ${debug_threshold}} {
+      set now [clock seconds]
+      set ts [clock format ${now} -format "%Y%m%d"]
+      set log_file_name "../log/keysight_N8740A_[basename ${tc_root}]_${ts}.log"
+      set fd [open "${log_file_name}" "a"]
+      set ts [clock format ${now} -format "%T"]
+      puts ${fd} "${ts} ${debug_string}"
+      close ${fd}
+    }
+  } catch_message ]
+}
+
+proc ::scobj::keysight_N8740A::sics_log {debug_level debug_string} {
+  set catch_status [ catch {
+    set debug_threshold ${::scobj::keysight_N8740A::debug_threshold}
+    if {${debug_level} >= ${debug_threshold}} {
+      sicslog "::scobj::keysight_N8740A::${debug_string}"
+    }
+  } catch_message ]
+}
+
+# check function for hset change
+proc ::scobj::keysight_N8740A::checkrange {tc_root} {
+  set catch_status [ catch {
+    debug_log ${tc_root} 1 "checkrange tc_root=${tc_root} sct=[sct] target=[sct target]"
+    set setpoint [sct target]
+    if { [hpropexists [sct] lowerlimit] } {
+      set lolimit [sct lowerlimit]
+    } else {
+      # lowerlimit not set, use target
+      set lolimit [sct target]
+    }
+    if { [hpropexists [sct] upperlimit] } {
+      set hilimit [sct upperlimit]
+    } else {
+      # upperlimit not set, use target
+      set hilimit [sct target]
+    }
+# checkrange hook code goes here
+    if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {
+      error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"
+    }
+    return OK
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+# function to request the read of a parameter on a device
+proc ::scobj::keysight_N8740A::getValue {tc_root nextState cmd_str} {
+  set catch_status [ catch {
+    debug_log ${tc_root} 1 "getValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+    if { [hpropexists [sct] geterror] } {
+      hdelprop [sct] geterror
+    }
+    set cmd "${cmd_str}"
+# getValue hook code goes here
+    debug_log ${tc_root} 1 "getValue sct send ${cmd}"
+    if {![string equal -nocase -length 10 ${cmd} "@@NOSEND@@"]} {
+      sct send "${cmd}"
+    }
+    return ${nextState}
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+# function to check the write parameter on a device
+proc ::scobj::keysight_N8740A::noResponse {tc_root} {
+  set catch_status [ catch {
+    debug_log ${tc_root} 1 "noResponse tc_root=${tc_root} sct=[sct] resp=[sct result]"
+# noResponse hook code goes here
+    return "idle"
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+# function to parse the read of a parameter on a device
+proc ::scobj::keysight_N8740A::rdValue {tc_root} {
+  set catch_status [ catch {
+    debug_log ${tc_root} 1 "rdValue tc_root=${tc_root} sct=[sct] result=[sct result]"
+    if { [hpropexists [sct] geterror] } {
+      hdelprop [sct] geterror
+    }
+    set data [sct result]
+    set nextState "idle"
+    if {[string equal -nocase -length 7 ${data} "ASCERR:"]} {
+      # the protocol driver has reported an error
+      sct geterror "${data}"
+      error "[sct geterror]"
+    }
+# rdValue hook code goes here
+    if { ${data} != [sct oldval] } {
+      debug_log ${tc_root} 1 "[sct] changed to new:${data}, from old:[sct oldval]"
+      sct oldval ${data}
+      sct update ${data}
+      sct utime readtime
+    }
+    return ${nextState}
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+# function to write a parameter value on a device
+proc ::scobj::keysight_N8740A::setValue {tc_root nextState cmd_str} {
+  set catch_status [ catch {
+    debug_log ${tc_root} 1 "setValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+    if { [hpropexists [sct] geterror] } {
+      hdelprop [sct] geterror
+    }
+    set par [sct target]
+    set cmd "${cmd_str}${par}"
+# setValue hook code goes here
+    if { [hpropexists [sct] driving] } {
+      if { [hpropexists [sct] writestatus] && [sct writestatus] == "start" } {
+        sct driving 1
+      }
+    }
+    debug_log ${tc_root} 1 "setValue sct send ${cmd}"
+    if {![string equal -nocase -length 10 ${cmd} "@@NOSEND@@"]} {
+      sct send "${cmd}"
+    }
+    return ${nextState}
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+proc ::scobj::keysight_N8740A::mkDriver { sct_controller name device_class simulation_flag ip_address tcp_port } {
+  ::scobj::keysight_N8740A::sics_log 9 "::scobj::keysight_N8740A::mkDriver ${sct_controller} ${name} ${device_class} ${simulation_flag} ${ip_address} ${tcp_port}"
+  set ns "[namespace current]"
+  set catch_status [ catch {
+
+    MakeSICSObj ${name} SCT_OBJECT
+
+    sicslist setatt ${name} driver keysight_N8740A
+    sicslist setatt ${name} klass ${device_class}
+    sicslist setatt ${name} long_name ${name}
+
+    set scobj_hpath /sics/${name}
+
+    hfactory ${scobj_hpath}/state plain user int
+    hsetprop ${scobj_hpath}/state read ${ns}::getValue ${scobj_hpath} rdValue {OUTPUT:STATE?}
+    hsetprop ${scobj_hpath}/state rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/state write ${ns}::setValue ${scobj_hpath} noResponse {OUTPUT:STATE }
+    hsetprop ${scobj_hpath}/state noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/state check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/state control true
+    hsetprop ${scobj_hpath}/state data true
+    hsetprop ${scobj_hpath}/state mutable true
+    hsetprop ${scobj_hpath}/state nxsave true
+    hsetprop ${scobj_hpath}/state values 0,1
+    hsetprop ${scobj_hpath}/state oldval 0
+    hsetprop ${scobj_hpath}/state klass "parameter"
+    hsetprop ${scobj_hpath}/state sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/state type "part"
+    hsetprop ${scobj_hpath}/state nxalias "${name}_state"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/state 2
+      ${sct_controller} write ${scobj_hpath}/state
+      hsetprop ${scobj_hpath}/state simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/state simulated true
+    }
+
+    hsetprop ${scobj_hpath} data "true"
+    hsetprop ${scobj_hpath} klass "@none"
+    hsetprop ${scobj_hpath} type "part"
+
+    hfactory ${scobj_hpath}/current plain spy none
+
+    hfactory ${scobj_hpath}/current/limit plain user float
+    hsetprop ${scobj_hpath}/current/limit read ${ns}::getValue ${scobj_hpath} rdValue {SOURCE:CURRENT:PROTECTION }
+    hsetprop ${scobj_hpath}/current/limit rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/limit write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/current/limit noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/limit check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/limit control true
+    hsetprop ${scobj_hpath}/current/limit data true
+    hsetprop ${scobj_hpath}/current/limit mutable true
+    hsetprop ${scobj_hpath}/current/limit nxsave true
+    hsetprop ${scobj_hpath}/current/limit oldval 0.0
+    hsetprop ${scobj_hpath}/current/limit klass "parameter"
+    hsetprop ${scobj_hpath}/current/limit sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/current/limit type "part"
+    hsetprop ${scobj_hpath}/current/limit nxalias "${name}_current_limit"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/current/limit 1
+      ${sct_controller} write ${scobj_hpath}/current/limit
+      hsetprop ${scobj_hpath}/current/limit simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/current/limit simulated true
+    }
+
+    hfactory ${scobj_hpath}/current/sensor plain user float
+    hsetprop ${scobj_hpath}/current/sensor read ${ns}::getValue ${scobj_hpath} rdValue {MEASURE:CURRENT }
+    hsetprop ${scobj_hpath}/current/sensor rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/sensor write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/current/sensor noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/sensor check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/sensor control true
+    hsetprop ${scobj_hpath}/current/sensor data true
+    hsetprop ${scobj_hpath}/current/sensor mutable true
+    hsetprop ${scobj_hpath}/current/sensor nxsave true
+    hsetprop ${scobj_hpath}/current/sensor oldval 0.0
+    hsetprop ${scobj_hpath}/current/sensor klass "parameter"
+    hsetprop ${scobj_hpath}/current/sensor sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/current/sensor type "part"
+    hsetprop ${scobj_hpath}/current/sensor nxalias "${name}_current_sensor"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/current/sensor 1
+      ${sct_controller} write ${scobj_hpath}/current/sensor
+      hsetprop ${scobj_hpath}/current/sensor simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/current/sensor simulated true
+    }
+
+    hfactory ${scobj_hpath}/current/setpoint plain user float
+    hsetprop ${scobj_hpath}/current/setpoint read ${ns}::getValue ${scobj_hpath} rdValue {SOURCE:CURRENT }
+    hsetprop ${scobj_hpath}/current/setpoint rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/setpoint write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/current/setpoint noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/setpoint check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/current/setpoint control true
+    hsetprop ${scobj_hpath}/current/setpoint data true
+    hsetprop ${scobj_hpath}/current/setpoint mutable true
+    hsetprop ${scobj_hpath}/current/setpoint nxsave true
+    hsetprop ${scobj_hpath}/current/setpoint oldval 0.0
+    hsetprop ${scobj_hpath}/current/setpoint klass "parameter"
+    hsetprop ${scobj_hpath}/current/setpoint sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/current/setpoint type "part"
+    hsetprop ${scobj_hpath}/current/setpoint nxalias "${name}_current_setpoint"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/current/setpoint 1
+      ${sct_controller} write ${scobj_hpath}/current/setpoint
+      hsetprop ${scobj_hpath}/current/setpoint simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/current/setpoint simulated true
+    }
+    hsetprop ${scobj_hpath}/current data "true"
+    hsetprop ${scobj_hpath}/current klass "@none"
+    hsetprop ${scobj_hpath}/current type "part"
+
+    hfactory ${scobj_hpath}/system plain spy none
+
+    hfactory ${scobj_hpath}/system/error plain user text
+    hsetprop ${scobj_hpath}/system/error read ${ns}::getValue ${scobj_hpath} rdValue {SYSTEM:ERROR?}
+    hsetprop ${scobj_hpath}/system/error rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/system/error control false
+    hsetprop ${scobj_hpath}/system/error data false
+    hsetprop ${scobj_hpath}/system/error mutable false
+    hsetprop ${scobj_hpath}/system/error nxsave false
+    hsetprop ${scobj_hpath}/system/error oldval UNKNOWN
+    hsetprop ${scobj_hpath}/system/error sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/system/error type "part"
+    hsetprop ${scobj_hpath}/system/error nxalias "${name}_system_error"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/system/error 1
+      hsetprop ${scobj_hpath}/system/error simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/system/error simulated true
+    }
+
+    hfactory ${scobj_hpath}/system/version plain user text
+    hsetprop ${scobj_hpath}/system/version read ${ns}::getValue ${scobj_hpath} rdValue {SYSTEM:VERSION?}
+    hsetprop ${scobj_hpath}/system/version rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/system/version control false
+    hsetprop ${scobj_hpath}/system/version data false
+    hsetprop ${scobj_hpath}/system/version mutable false
+    hsetprop ${scobj_hpath}/system/version nxsave false
+    hsetprop ${scobj_hpath}/system/version oldval UNKNOWN
+    hsetprop ${scobj_hpath}/system/version sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/system/version type "part"
+    hsetprop ${scobj_hpath}/system/version nxalias "${name}_system_version"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/system/version 1
+      hsetprop ${scobj_hpath}/system/version simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/system/version simulated true
+    }
+    hsetprop ${scobj_hpath}/system data "false"
+    hsetprop ${scobj_hpath}/system klass "@none"
+    hsetprop ${scobj_hpath}/system type "part"
+
+    hfactory ${scobj_hpath}/voltage plain spy none
+
+    hfactory ${scobj_hpath}/voltage/limit plain user float
+    hsetprop ${scobj_hpath}/voltage/limit read ${ns}::getValue ${scobj_hpath} rdValue {SOURCE:VOLTAGE:PROTECTION }
+    hsetprop ${scobj_hpath}/voltage/limit rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/limit write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/voltage/limit noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/limit check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/limit control true
+    hsetprop ${scobj_hpath}/voltage/limit data true
+    hsetprop ${scobj_hpath}/voltage/limit mutable true
+    hsetprop ${scobj_hpath}/voltage/limit nxsave true
+    hsetprop ${scobj_hpath}/voltage/limit oldval 0.0
+    hsetprop ${scobj_hpath}/voltage/limit klass "parameter"
+    hsetprop ${scobj_hpath}/voltage/limit sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/voltage/limit type "part"
+    hsetprop ${scobj_hpath}/voltage/limit nxalias "${name}_voltage_limit"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/voltage/limit 1
+      ${sct_controller} write ${scobj_hpath}/voltage/limit
+      hsetprop ${scobj_hpath}/voltage/limit simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/voltage/limit simulated true
+    }
+
+    hfactory ${scobj_hpath}/voltage/sensor plain user float
+    hsetprop ${scobj_hpath}/voltage/sensor read ${ns}::getValue ${scobj_hpath} rdValue {MEASURE:VOLTAGE }
+    hsetprop ${scobj_hpath}/voltage/sensor rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/sensor write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/voltage/sensor noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/sensor check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/sensor control true
+    hsetprop ${scobj_hpath}/voltage/sensor data true
+    hsetprop ${scobj_hpath}/voltage/sensor mutable true
+    hsetprop ${scobj_hpath}/voltage/sensor nxsave true
+    hsetprop ${scobj_hpath}/voltage/sensor oldval 0.0
+    hsetprop ${scobj_hpath}/voltage/sensor klass "parameter"
+    hsetprop ${scobj_hpath}/voltage/sensor sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/voltage/sensor type "part"
+    hsetprop ${scobj_hpath}/voltage/sensor nxalias "${name}_voltage_sensor"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/voltage/sensor 1
+      ${sct_controller} write ${scobj_hpath}/voltage/sensor
+      hsetprop ${scobj_hpath}/voltage/sensor simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/voltage/sensor simulated true
+    }
+
+    hfactory ${scobj_hpath}/voltage/setpoint plain user float
+    hsetprop ${scobj_hpath}/voltage/setpoint read ${ns}::getValue ${scobj_hpath} rdValue {SOURCE:VOLTAGE }
+    hsetprop ${scobj_hpath}/voltage/setpoint rdValue ${ns}::rdValue ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/setpoint write ${ns}::setValue ${scobj_hpath} noResponse {}
+    hsetprop ${scobj_hpath}/voltage/setpoint noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/setpoint check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/voltage/setpoint control true
+    hsetprop ${scobj_hpath}/voltage/setpoint data true
+    hsetprop ${scobj_hpath}/voltage/setpoint mutable true
+    hsetprop ${scobj_hpath}/voltage/setpoint nxsave true
+    hsetprop ${scobj_hpath}/voltage/setpoint oldval 0.0
+    hsetprop ${scobj_hpath}/voltage/setpoint klass "parameter"
+    hsetprop ${scobj_hpath}/voltage/setpoint sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/voltage/setpoint type "part"
+    hsetprop ${scobj_hpath}/voltage/setpoint nxalias "${name}_voltage_setpoint"
+
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      ${sct_controller} poll ${scobj_hpath}/voltage/setpoint 1
+      ${sct_controller} write ${scobj_hpath}/voltage/setpoint
+      hsetprop ${scobj_hpath}/voltage/setpoint simulated false
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => No poll/write for keysight_N8740A"
+      hsetprop ${scobj_hpath}/voltage/setpoint simulated true
+    }
+    hsetprop ${scobj_hpath}/voltage data "true"
+    hsetprop ${scobj_hpath}/voltage klass "@none"
+    hsetprop ${scobj_hpath}/voltage type "part"
+    hsetprop ${scobj_hpath} driver keysight_N8740A
+    hsetprop ${scobj_hpath} klass ${device_class}
+    hsetprop ${scobj_hpath} data true
+    hsetprop ${scobj_hpath} debug_threshold 5
+# mkDriver hook code goes here
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+proc ::scobj::keysight_N8740A::add_driver {name device_class simulation_flag ip_address tcp_port} {
+  set catch_status [ catch {
+    ::scobj::keysight_N8740A::sics_log 9 "::scobj::keysight_N8740A::add_driver ${name} ${device_class} ${simulation_flag} ${ip_address} ${tcp_port}"
+    if {[string equal -nocase "${simulation_flag}" "false"]} {
+      if {[string equal -nocase "aqadapter" "${ip_address}"]} {
+        ::scobj::keysight_N8740A::sics_log 9 "makesctcontroller sct_${name} aqadapter ${tcp_port}"
+        makesctcontroller sct_${name} aqadapter ${tcp_port}
+      } else {
+        ::scobj::keysight_N8740A::sics_log 9 "makesctcontroller sct_${name} std ${ip_address}:${tcp_port}"
+        makesctcontroller sct_${name} std ${ip_address}:${tcp_port}
+      }
+    } else {
+      ::scobj::keysight_N8740A::sics_log 9 "simulation_flag=${simulation_flag} => Null sctcontroller for keysight_N8740A"
+      ::scobj::keysight_N8740A::sics_log 9 "makesctcontroller sct_${name} aqadapter NULL"
+      makesctcontroller sct_${name} aqadapter NULL
+    }
+    ::scobj::keysight_N8740A::sics_log 1 "::scobj::keysight_N8740A::mkDriver sct_${name} ${name} ${device_class} ${simulation_flag} ${ip_address} ${tcp_port}"
+    ::scobj::keysight_N8740A::mkDriver sct_${name} ${name} ${device_class} ${simulation_flag} ${ip_address} ${tcp_port}
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+namespace eval ::scobj::keysight_N8740A {
+  namespace export debug_threshold
+  namespace export debug_log
+  namespace export sics_log
+  namespace export mkDriver
+  namespace export add_driver
+}
+
+proc add_keysight_N8740A {name ip_address tcp_port} {
+  set simulation_flag "[string tolower [SplitReply [environment_simulation]]]"
+  ::scobj::keysight_N8740A::add_driver ${name} "environment" ${simulation_flag} ${ip_address} ${tcp_port}
+}
+
+clientput "file evaluation of sct_keysight_N8740A.tcl"
+::scobj::keysight_N8740A::sics_log 9 "file evaluation of sct_keysight_N8740A.tcl"
+
+proc ::scobj::keysight_N8740A::read_config {} {
+  set catch_status [ catch {
+    set ns "::scobj::keysight_N8740A"
+    dict for {k u} $::config_dict {
+      if { [dict exists $u "implementation"] } {
+        set simulation_flag "[string tolower [SplitReply [environment_simulation]]]"
+        set device_class "environment"
+        if { !([dict exists $u "name"] && [dict exists $u "enabled"]) } {
+          continue
+        }
+        set enabled [string tolower [dict get $u "enabled"]]
+        if { ! ([string equal -nocase $enabled "true" ] || [string equal -nocase $enabled "always"]) } {
+          continue
+        }
+        if { [dict exists $u "simulation_group"] } {
+          set simulation_flag [SplitReply [[string tolower [dict get $u "simulation_group"]]]]
+        }
+        if { [dict exists $u "device_class"] } {
+          set device_class "[dict get $u "device_class"]"
+        }
+        set name [dict get $u name]
+        set implementation [dict get $u "implementation"]
+        if { !([dict exists $::config_dict $implementation]) } {
+          continue
+        }
+        set v [dict get $::config_dict $implementation]
+        if { !([dict exists $v "driver"]) } {
+          continue
+        }
+        if { [string equal -nocase [dict get $v "driver"] "keysight_N8740A"] } {
+          if { ![string equal -nocase "${simulation_flag}" "false"] } {
+            set asyncqueue "null"
+            ${ns}::sics_log 9 "simulation_flag=${simulation_flag} => using null asyncqueue"
+            ${ns}::sics_log 9 "makesctcontroller sct_${name} aqadapter NULL"
+            makesctcontroller sct_${name} aqadapter NULL
+          } elseif { [dict exists $v "asyncqueue"] } {
+            set asyncqueue [dict get $v "asyncqueue"]
+            if { [string equal -nocase ${asyncqueue} "sct"] } {
+              set ip_address [dict get $v ip]
+              set tcp_port [dict get $v port]
+              makesctcontroller sct_${name} std ${ip_address}:${tcp_port}
+            } else {
+              makesctcontroller sct_${name} aqadapter ${asyncqueue}
+            }
+          } else {
+            if { [dict exists $v "asyncprotocol"] } {
+              set asyncprotocol [dict get $v "asyncprotocol"]
+            } else {
+              set asyncprotocol ${name}_protocol
+              MakeAsyncProtocol ${asyncprotocol}
+              if { [dict exists $v "sendterminator"] } {
+                ${asyncprotocol} sendterminator "[dict get $v "sendterminator"]"
+              } elseif { [dict exists $v "terminator"] } {
+                ${asyncprotocol} sendterminator "[dict get $v "terminator"]"
+              }
+              if { [dict exists $v "replyterminator"] } {
+                ${asyncprotocol} replyterminator "[dict get $v "replyterminator"]"
+              } elseif { [dict exists $v "terminator"] } {
+                ${asyncprotocol} replyterminator "[dict get $v "terminator"]"
+              }
+            }
+            set asyncqueue ${name}_queue
+            set ip_address [dict get $v ip]
+            set tcp_port [dict get $v port]
+            MakeAsyncQueue ${asyncqueue} ${asyncprotocol} ${ip_address} ${tcp_port}
+            if { [dict exists $v "timeout"] } {
+              ${asyncqueue} timeout "[dict get $v "timeout"]"
+            }
+            makesctcontroller sct_${name} aqadapter ${asyncqueue}
+          }
+          ${ns}::mkDriver sct_${name} ${name} ${device_class} ${simulation_flag} ${ip_address} ${tcp_port}
+        }
+      }
+    }
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message}
+}
+
+if { [info exists ::config_dict] } {
+  ::scobj::keysight_N8740A::read_config
+} else {
+  ::scobj::keysight_N8740A::sics_log 5 "No config dict"
+}