Figure a-11. *stb? — status byte register query, Figure a-12. *trg — trigger command – KEPCO BIT 232F User Manual
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A-7
FIGURE A-11. *STB? — STATUS BYTE REGISTER QUERY
FIGURE A-12. *TRG — TRIGGER COMMAND
Syntax:
*STB?
Response:
Function:
Read Status Byte Register without clearing it
Description:
This Query reads the Status Byte Register (bit 6 = MSS) without clearing it (1 = set = function enabled,
0 = reset = function disabled). The register is cleared only when subsequent action clears all set bits.
MSS is set when the power supply has one ore more reasons for requesting service. (A serial poll also
reads the Status Byte Register, except that bit 6 = RQS, not MSS; ands RQS will be reset.)
Example:
*STB?
Power supply responds with 96 (64 + 32) to indicate MSS and the Event Status
Byte summary bit have been set.
STATUS BYTE REGISTER BITS
CONDITION
N#HI
MSS
RQS
ESB
MAV
NODE NUMBERS (ADDRESS)
BIT
7
6
5
4
3
2
1
0
VALUE
128
64
32
16
8
4
2
1
*STB?
N#HI Node number high
MSS
Master Status Summary
RQS
Request for Service
ESB
Event Status Byte summary
MAV
Message available
Syntax:
*TRG
Function:
Triggers the power supply to be commanded to preprogrammed value of output current and voltage.
Description:
This command causes the power supply to be commanded to the output voltage and current levels
specified by VOLT:TRIG and CURR:TRIG commands, respectively (see Figures B-13 and B-9).
Example 1:
VOLT 25
Power supply voltage commanded to 25V.
VOLT:TRIG 15
Programs power supply voltage to 15V when *TRG received.
INIT
Trigger event is initialized.
*TRG
Power supply reverts to commanded output voltage of 15V.
*TRG