Chapter 4 Command Reference
Introduction
Programming Guide
4-133
*OPC?
(Operation Complete Query)
*OPC?
This query produces a response upon the transition of the measurement cycle from
measuring to idle. This allows synchronization between a controller and the
instrument using the MAV bit in the Status Byte Register or a read of the Output
Queue. (Note that this query does not actually “read” a state, as most queries do.)
Since this query will not respond until the measurement cycle transitions from
measuring to idle, the only way to cancel the query “holdoff” is by Device Clear
(page 4-31) or power-on.
See the section titled “Using the *OPC? Command,” page 3- 47,
in Chapter 3 for an example using this command.
Single ASCII-encoded byte, 1.
The *OPC? query does not in any way affect the OPC bit in the Standard Event
Status Register.
Query Response
NOTE
Summary of Contents for 53131A
Page 1: ...Programming Guide HP 53131A 132A 225 MHz Universal Counter ...
Page 2: ......
Page 13: ...1 1 Before You Start ...
Page 24: ...Chapter 1 Before You Start Related Documentation 1 12 Programming Guide ...
Page 25: ...2 2 Command Summary A Quick Reference ...
Page 68: ...Chapter 2 Command Summary RST Response 2 44 Programming Guide ...
Page 69: ...3 3 Programming Your Universal Counter for Remote Operation ...
Page 167: ...4 4 Command Reference A Dictionary ...
Page 310: ...Chapter 4 Command Reference WAI Wait to Continue Command 4 144 Programming Guide ...
Page 311: ...5 5 Errors ...
Page 329: ......
Page 330: ...H Manual Part Number 53131 90044 Printed in U S A NOVEMBER 1996 ...