8.4 Communication Methods
108
Various messages are supported for controlling the instrument through the inter-
faces.
Messages can be either program messages, sent from the PC to the instrument,
or response messages, sent from the instrument to the PC.
Message types are further categorized as follows:
Program
Messages
Program messages can be either Command Messages or Query Messages.
• Command Messages
Instructions to control the instrument, such as to change settings or reset
Example: (instruction to set the measurement range)
:RESISTANCE:RANGE 100E-3
• Query Messages
Requests for responses relating to results of operation or measurement, or
the state of instrument settings.
Example: (request for the current measurement range)
:RESISTANCE:RANGE?
See For details: See Section " Headers" (p.109), " Separators" (p.110) and "
Data Formats" (p.111).
8.4 Communication Methods
Model BT3562 (-01)
Model BT3563 (-01)
Program Messages
Response Messages
Program Messages
Response Messages
Messages
Command Message
Query Message
Message Format
Header portion
Space
Data portion
Header portion
Question Mark
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