INFICON SQM-242 Thin Film Deposition Controller Card Software Operating Manual - Manual (Page 76)

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SQS-242 Operating Manual
5.5 SQS-242 Comm Program
SQS-242 Comm, found on the SQS-242 CD-ROM, is a simple Windows program
to demonstrate SQS-242 communications concepts. With SQS-242 Comm you
can easily send commands to, and read the responses returned by the SQS-242
program.
5.5.1 Setup for RS-232 or Ethernet
In the SQS-242 program, select Edit, System and set the RS-232 or Ethernet
settings as detailed in the previous sections.
Load the Comm program on a computer (the host), and connect an Ethernet or
RS-232 cable between the host and the computer running the SQS-242 program.
Start the Comm program on the host computer, then select the Utility tab. Set the
Comm Port and Baud Rate for the host computer, or select Ethernet and set the
Ethernet Port (typically 1001).
5.5.2 Setup for Active X Control
Load the Comm program on the same computer that is running the SQS-242
program. Start the Comm program, then select Active X on the Utility tab. Start the
SQS-242 program but minimize it, or bring the Comm program to the foreground.
5.5.3 Communicating with the SQS-242 Program
In the Comm program, Utility tab, click the Version button under the SID-242
Controller heading. Click Send to send the query to the computer running the
SQS-242 program.
The response from the SQS-242 program should show in the Comm program
Response window. A typical response is @QU;ACK;3.2.9;32, which indicates
software version 3.29. The next section describes the Query/Update and
Response strings in detail.
The transmissions to and from the Comm program will also show in the SQS-242
Edit, System, Comm, Receive Data and Transmit Data windows.
5.6 Protocol
SQS-242 commands fall into two categories:
 Query commands request data from the SQS-242 program.
 Update commands update a setting or instruct the program to take an action.
The SQS-242 responds to both Query and Update commands with a response that
indicates the results of the command request. The SQS-242 program never
initiates communications. It only responds to commands from the host.