KEPCO BHK-MG 40W (Half Rack) Series - Manual (Page 59)

BHK-1/2-MG 121313
3-15
3.3.2 DCL CONTROL
The device clear (DCL) and selected device clear can be set to operate in two modes. In the
“output = 0” mode, when the device clear is received the output is disabled; when the output is
enabled, the output of the power supply is set to zero volts and current is set to the power-up
and reset current value (see PAR. 3.2.8.1). In the “output unchanged” mode sending DCL or
selected DCL disables the output, but has no effect on output voltage and current as required by
IEEE specification 488.2 so that when the output is enabled, the settings in effect when DCL
was issued are restored. Note that the DCL setting also affects the operation of RESET (see
PAR. 3.2.8). The factory default value is “output=0” mode.
TABLE 3-7. IEEE 488 (GPIB) BUS COMMAND MODE MESSAGES
MNEMONIC
MESSAGE
DESCRIPTION
COMMENTS
DCL Device Clear Received
GET Group Execute Trigger Received
GTL Go To Local Received
IFC Interface Clear Received
LLO Local Lockout Received
MLA My Listen Address Received
MTA My Talk Address Received
OTA Other Talk Address Received (Not Used)
RFD Ready for Data Received or Sent
SDC Selected Device Clear Received
SPD Serial Poll Disable Received
SPE Serial Poll Enable Received
SRQ Service Request Sent
UNL Unlisten Received
UNT Untalk Received
TABLE 3-8. IEEE 488 (GPIB) BUS DATA MODE MESSAGES
MNEMONIC MESSAGE DESCRIPTION COMMENTS
DAB Data Byte Received or Sent
END End Received or Sent
EOS End of String Received or Sent
RQS Request Service Sent
STB Status Byte Sent