Hioki BT3564, Instruction Manual, Page: 126 / 210

8.6 Message Reference
120
Synchronization Commands
Status and Event Control Commands
Set the OPC bit of SESR When Finished All Pending Operations
Syntax
Command

OPC
Description
Command Sets OPC bit 0 of the Standard Event Status Register (SESR) when
all prior commands have finished processing.
Example Command
A;B;  OPC;C
The OPC bit of the SESR is set after commands A and B have fin-
ished processing.
Respond "1" When Finished All Pending Operations
Syntax
Query

OPC?
Response 1
Description
Query Returns “1” when processing of commands received before the *OPC
command completes.
Wait for Pending Commands to Finish
Syntax
Command

WAI
Description Command The instrument waits until all prior commands finish before executing
any subsequent commands.
Note
The
 WAI
command is supported because it is defined in IEEE 488.2-1987, but
because all Model BT3564 device-specific commands are sequential types, this
command has no actual affect.
Clear the Status Byte and Related Queues (Except the Output Queue)
Syntax Command

CLS
Description Command Clears the event registers corresponding to each bit of the Status
Byte Register. Also clears the Status Byte Register.
Note The output queue is unaffected.
The output queue, the various enable registers and MAV bit 4 of the
Status Byte Register are unaffected.
HIOKI BT3564A961-02