IEEE-488 Messages
Chapter Seven: IEEE-488 Communications Option
110
Identification Query (*IDN?)
The 670 instrument identifies itself in response to an identification query. The response includes
the four fields listed in Table 31.
Identification Query Response
Field
Information
Contents
1
Manufacturer
MKS Instruments
2
Model Number
MKS670BXXX
3
Reserved field
0
4
Firmware Level
x.x
Table 31: Identification Query Response
Example: How To Check the Version Number
•
To check the version number, send the following command:
*IDN?
ENTER
The 670 instrument will respond with:
MKS Instruments MKS670BXXX 0 1.1x
where
XXX
represents the model number, and the last field contains the actual version
number, in this example, version 1.1x.
Reset Command (*RST)
The reset command initializes to the 670 instrument. The initialization procedure includes Bus
initialization and Message Exchange initialization. The reset command does not change the
IEEE-488 address.
Self-Test Query (*TST?)
The self-test query performs an internal self-test and places a response in the Output queue to
indicate whether the 670 instrument detected any errors during the self-test. A value of 0 is
placed in the output queue when the self-test is completed successfully. A value of 1 indicates
that the self-test has failed.
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