Hioki 7075 - Receive and Send Protocols

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8.2 Operations
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8.2.3 Receive and Send Protocols
Messages
Messages
Program messages
Response messages
Command messages
Query messages
Data received or sent by the GP-IB interface is called a message.
The following are the message types:
Of these, program messages are those received by the unit from the
controller, while response messages are those sent from the unit to the
controller. During addressable, program messages are those received by the
unit from the external controller, while response messages are those sent
from the unit to the controller.
(1) Program messages
Program messages can be divided into either command messages or query
messages.
Command program messages
Orders for control of the device, such as for making settings for output or
waveform output/stop or the like.
Example: When sending the messages from the personal computer to the
7075.
:OSET:AMPL 1,10.000
This message sets the amplitude of channel 1 of the 7075 to 10.000 V.
Query program messages
Orders for responses relating to the results of operation, results of self-test,
or the state of device settings.
These commands are identified by "?" at the end of their comments in "8.4
GP-IB Command Summary."
(2) Response messages
Sent in response to query program messages. After a query message sent
from the external controller has been received, a response message is
produced the moment that its syntax has been checked.