Cryo-con Model 24C
Remote Programming Guide
Debugging Tips
1. To view the last command that the instrument received and the last response
it generated, press the System key and then select the Network Configuration
Menu. The last two lines of this menu show > and < characters. These two
lines show the last command received by the instrument and the last
response generated.
2. Some commands require the instrument to write to non-volatile flash type
memory, which can be time consuming. In order to avoid overrunning the
instrument use compound commands that return a value, thus indicating that
command processing is complete. For example:
INPUT A:UNITS K;UNITS?
will respond with the input units only after the command has completed.
Another example:
LOOP 1:SETPOINT 1234.5;:*OPC?
Here, the operation complete command :*OPC? will return a '1' when
command processing is complete.
3. It is often easiest to test commands by using the Cryo-con utility software.
Run the program, connect to the instrument and use the Interact mode to
send commands and view the response. Alternatively, any communications
program like Windows Hyperterminal can be used to interact with the
instrument via the LAN or serial ports.
4. For ease of software development, keywords in all SCPI commands may be
shortened. The short form of a keyword is the first four characters of the
word, except if the last character is a vowel. If so, the truncated form is the
first three characters of the word. Some examples are: inp for input, syst for
system alar for alarm etc.
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