Cryomagnetics Model 4G Operating Instruction Manual 42
Command Reference
This section describes how each 4G command is used and provides a cross reference to related
commands. The command syntax sections show required elements enclosed in <angle brackets>
and optional parameters enclosed in [square brackets]. All numbers are decimal (base 10).
CHAN? Query the currently selected module
Availability: Always
Command Syntax: CHAN?
Response: <currently selected module>
Response Example: 2
Description: The CHAN? query returns the power module currently selected for remote
commands. It returns 1 or 2. A command error is returned if only one module is installed.
Related Commands: CHAN
CHAN Set the module for subsequent remote commands
Availability: Remote Mode
Command Syntax: CHAN [module number]
Example: CHAN 2
Default Parameter: none Parameter Range: 1 to 2
Description: The CHAN command selects the module for subsequent remote commands. A
command error is returned if only one module is installed.
Related Commands: CHAN?
ERROR Set error response mode for USB interface
Availability: Remote Mode
Command Syntax: ERROR <Error Mode>
Example: ERROR 1
Parameter Range: 0 or 1 (0 - disable error reporting, 1 - enable error reporting)
Description: The ERROR command enables or disables error messages when the USB interface
is used. It is much easier to handle errors under program control when using the USB interface if
error messages are disabled, but it is desirable to enable error messages if a terminal program is
used to interactively control and query the 4G.
Related Commands: ERROR?
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