MKS Granville-Phillips 358 series, Instruction Manual

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Preparing for Operation
Series 358 Micro-Ion Controller Instruction Manual - 358013 - Rev. B
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IG1
Definition: Turn the Ion gauge ON or OFF.
Modifiers: ON or OFF
Response: OK if command accepted, INVALID if rejected.
Example:
From computer: IG1 ON CRLF
From controller: OKCRLF
• The IG1 ON command will be rejected as INVALID if the Ion gauge is
already ON, and IG1 OFF will be rejected if the Ion gauge is already OFF.
• A response to the IG1 ON command of OK indicates only that a signal
requesting that the ion gauge be turned ON has been sent to the
electrometer. The tube may fail to come on, e.g., if the system pressure is
too high or if the tube is disconnected. If the tube is OFF (or in its first few
seconds of operation after being turned ON), a pressure of 9.99E+9 will
be returned.
IG2
Identical to IG1 - performs the same functions as IG1
PCS
Definition: Display process control channel status.
Modifiers: 1 or 2 or 3 or 4 or 5 or 6 or B or none.
Response: Depends on modifier:
Single digit (1 through 6); response = single
ASCII digit, 0 if the corresponding relay is
inactive, 1 if active. See Example 1.
B; response = a byte of data with bits 0 through
5 set/clear according to whether the
corresponding relay is active/inactive. Bit 6
will always be set to guarantee that the
returned byte will not appear as a terminator
byte. See Example 2.
None or Absent; response will be a string of 6
ASCII zeroes and ones separated by commas,
giving the status of all six channels. See
Example 3.
Examples:
Assume that channels 1-3 are active, and 4-6 are inactive:
1. From computer: PCS 1 CRLF
From controller: 1CRLF