Hioki BT3564 - Communication Methods; Message Format

8.4 Communication Methods
101
8
Chapter 8 RS-232C/GP-IB Interfaces
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.102), "Separators" ( p.103) and
"Data Formats" ( p.104).
8.4 Communication Methods
Model BT3564
Program messages
Response messages
Program messages
Response messages
Messages
Command message
Query message
Message Format
Header portion
Space
Data portion
Header portion
Question mark
HIOKI BT3564A961-02