IEEE488 Commands
Copyright © ITECH Electronic Co., Ltd. 67
Examples
ITECH Ltd, IT85XX, XXXXXXXXXXXXXXXXXX, 1.21-1.28
Returned Parameters
<AARD> Field Information
Technologies Manufacturer
ITECH Ltd
Model
IT85XX
Serial Number
XXXX…..
Firmware Revision
1.21-1.28
*OPC
This command causes the interface to set the OPC bit (bit 0) of the Standard
Event Status register when the electronic load has completed all pending
operations. (See *ESE for the bit configuration of the Standard Event Status
registers.) Pending operations are complete when:
⚫ All commands sent before *OPC have been executed. This includes
overlapped commands. Most commands are sequential and are completed
before the next command is executed. Overlapped commands are
executed in parallel with other commands. Commands that affect trigger
actions are overlapped with subsequent commands sent to the electronic
load. The *OPC commandprovides notification that all overlapped
commands have been completed.
⚫ All triggered actions are completed and the trigger system returns to the
Idle state.
*OPC does not prevent processing of subsequent commands but Bit 0 will not
be set until all pending operations are completed. The query causes the
interface to place an ASCII "1" in the Output Queue when all pending
operations are completed.
Command Syntax
*OPC
Parameters
None
Query Syntax
*OPC?
Returned Parameters
<NR1>
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