INFICON Composer Gas Concentration Controller - Manual (Page 144)

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Composer Operating Manual
7.3 Communication Settings
Serial communications baud rates between 4800 and 57600 are supported and
selected on the CFGR2 switch block. Refer to
section 4.3.6.6, CFGR2, on page
4-26<Default Paragraph Font> and to Table 4-4 on page 4-26 . The
communication initialization settings use baud rate,N,8,1 for the RS-232C port.
7.4 Basic Command Structure
Commands are always initiated from an external computer. The Composer will
always send a response to commands sent, and will never initiate commands.
The following commands are available via the computer communications. Also
see
section 7.4.3, List of Commands with their Subcommands, Data, and
Response Data., on page 7-5 .
E . . . . . . . . . . . . . . . . . . . . . . . . . . Echo. Returns the sent message.
H . . . . . . . . . . . . . . . . . . . . . . . . . . Hello. Returns the model and software
version number.
Q . . . . . . . . . . . . . . . . . . . . . . . . . . Query. Interrogates the programmable
parameters and returns the value of
parameter requested.
U . . . . . . . . . . . . . . . . . . . . . . . . . . Update. Replaces the particular parameter
value with the value sent.
S . . . . . . . . . . . . . . . . . . . . . . . . . . Status. Sends back pertinent information
based on the specific request made.
R . . . . . . . . . . . . . . . . . . . . . . . . . . Remote. Perform an action based on the
specific command given. Many of these
mimic front panel keystrokes.