Command Table Summary

The following table lists every CT-BOX command, its purpose, its parameter(s) and the mode(s) of operation in which it applies, for quick reference.

In the Mode column: ALL means a general-purpose command usable in all three acquisition modes, OSC means the command applies only in oscilloscope mode, DMM means the command applies only in digital-multimeter mode, DLOG means it applies only in data-logger mode, DLOG-DMM means it applies in both data-logger and digital-multimeter modes, DLOG-OSC means it applies in both data-logger and oscilloscope modes. Settings of mode-specific commands can be written and read in any mode; only GET and ACQT are rejected outside their modes. Data is saved to the SD card only in DLOG and DMM modes.

Mode and Acquisition

Command	Purpose	Parameters	Mode
MODE	Set the device in OSC / DLOG / DMM mode	:OSC / :DLOG / :DMM	ALL
	Read the device operation mode	:?	ALL
ACQ	Start / stop the measurements acquisition	:ON / :OFF	ALL
	Read the acquisition status	:?	ALL
PRINT	Enable / disable printing on the communication stream	:ON / :OFF	ALL
	Read the printing configuration	:?	ALL

Reading

Command	Purpose	Parameters	Mode
GET	Get a single current reading, in Amps	(none)	DLOG-OSC
GETA	Get an array of n current readings (Ethernet only)	:[1 - 5000]	ALL
GETT	Read the DCCT / external sensor temperature	:HEAD / :EXT	ALL

Output Data Rate and Acquisition Settings

Command	Purpose	Parameters	Mode
TS	Set the averaging interval, in µs	:[10 - 1000000]	OSC
	Read the averaging interval	:?	OSC
FREQ	Set the output data frequency, in Hz	:[0.1 - 0.9] (step 0.1) / :[1 - 10] (step 1)	DLOG
	Read the output data frequency	:?	DLOG
DMM	Set the DMM submode	:DC / :AC / :ACDC	DMM
	Read the DMM submode	:?	DMM
	Set the DMM frequency	:FREQ:[47.00 - 63.00]	DMM
	Read the DMM frequency	:FREQ:?	DMM
	Set the DMM number of periods	:NOP:{1; 10; 20; 100}	DMM
	Read the DMM number of periods	:NOP:?	DMM
ACQT	Set the temperature acquisition configuration	:000 / :010 / :100 / :110	DLOG
	Read the temperature acquisition configuration	:?	DLOG

Measurement Setup

Command	Purpose	Parameters	Mode
PTURNS	Set the number of primary turns	:[1 - 100]	ALL
	Read the configured number of primary turns	:?	ALL
OFFSET	Zero the offset at null primary current	:ZERO	ALL

Alarm and Trigger

Command	Purpose	Parameters	Mode
ALARM	Enable / disable the alarm check functionality	:ON / :OFF	ALL
	Clear the alarm condition	:CLR	ALL
	Read the alarm check setting	:?	ALL
	Set / read the upper current threshold, in Amps	:ULIM:<current> / :ULIM:?	ALL
	Set / read the lower current threshold, in Amps	:LLIM:<current> / :LLIM:?	ALL
TRG	Set the trigger as input / output / gate or disable it	:IN / :OUT / :OFF / :GATE	IN / OUT: DLOG-OSC; GATE: DMM; OFF: ALL
	Read the trigger status	:?	ALL

SD Card

Command	Purpose	Parameters	Mode
SD	Mount / unmount the SD card	:MOUNT / :UNMOUNT	DLOG-DMM
	Read the SD card status	:?	DLOG-DMM
	Reset the SD card	:RST	DLOG-DMM
	List all files on the SD card	:LS	DLOG-DMM
	Remove / size / read a file on the SD card	:RM:<filename> / :SIZE:<filename> / :READ:<filename>	DLOG-DMM
SAVE	Enable / disable saving to the SD card	:ON / :OFF	DLOG-DMM
	Read the saving configuration	:?	DLOG-DMM

Real-Time Clock

Command	Purpose	Parameters	Mode
DATE	Set / read the RTC date (dd.mm.yyyy)	:<date> / :?	DLOG-DMM
TIME	Set / read the RTC time (hours.minutes.seconds)	:<time> / :?	DLOG-DMM

Network

Command	Purpose	Parameters	Mode
IP	Set / read the IP address	:<ip_address> / :?	ALL
MASK	Set / read the subnet mask	:<subnet_mask> / :?	ALL
GATE	Set / read the default gateway	:<gateway> / :?	ALL
PORT	Set / read the UDP data-stream port	:<port> / :?	OSC

Device Information and Reset

Command	Purpose	Parameters	Mode
VER	Read the installed firmware release	:?	ALL
CTBOX	Read the unit serial number	:SN:?	ALL
	Set / read the user-defined unit name (max 15 chars)	:NAME:<des> / :NAME:?	ALL
	Read the unit calibration date	:CDATE:?	ALL
DCCT	Read the matched DCCT serial number	:SN:?	ALL
	Read the connected DCCT model and serial number	:MODEL:?	ALL
HWRESET	Perform a hardware reset of the unit	:FORCE	ALL

Status and Errors

Command	Purpose	Parameters	Mode
STATUS	Read the internal Status register	:?	ALL
ERR	Read the internal Error register	:?	ALL
	Clear the internal Error register	:CLR	ALL

Calibration (Password Protected)

Command	Purpose	Parameters	Mode
PASSWORD	Unlock / lock the protected commands	:CAL-ADMIN / :LOCK	ALL
SCALE	Calculate the calibration parameters	:POS:<current> / :NEG:<current>	ALL
GAIN	Store / read the calibration parameters	:POS:<gain> / :POS:? / :NEG:<gain> / :NEG:?	ALL