5-19
5.6.2 Wait for response after *OPC? query is sent
When executing the *OPC? query command, the MT8801C outputs “1” as the re-
sponse message at the end of the previous command. The controller is synchronized
with the MT8801C by waiting for the request message to be entered.
Note:
When the read response message is “Q” (command is being executed), wait for
about 50 ms until the controller moves to the next operation.
<Controller program>
[1] Sends one or more commands
sequentially
[2] Sends ∗OPC? query
[3] Reads the response message
to the next operation
Goes to the next operation
when “1” is read
5.6 Techniques for Synchronizing the MT8801C with a Controller