Granville-Phillips Micro-Ion 354 E Series, Instruction Manual, Page: 31 / 54

RS–232 Operation
Micro-Ion E Module Instruction Manual 354011, Rev. A
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IGS Read Micro-Ion E Gauge
ON/OFF Status
If you send the ion gauge status (IGS) command, the module returns a
character string that indicates the ON/OFF status of the Micro-Ion E gauge.
IGS command from host: IGS
↵
Example response from module: 1 IG ON
↵
• The “1 IG ON” response means the Micro-Ion E gauge is ON.
• The “0 IG OFF” response means the Micro-Ion E gauge is OFF and the
module will return a “9.99E+09” error response to the RD (read pressure)
command.
The status LED indicates the operating status of the Micro-Ion E gauge.
• Figure 5-2 illustrates the status LED on the module.
• Table 5-7 lists conditions indicated by the status LED.
Figure 5-2 LED Status Indicator
Status LED
Table 5-7 Conditions Indicated by Status LED
LED Behavior Condition Indicated
Solid green Micro-Ion E gauge is ON. See page 30 to turn gauge OFF.
Solid amber Micro-Ion E gauge is OFF. See page 30 to turn gauge ON.
Solid red • Micro-Ion E gauge fault condition. See page 40 to replace gauge assembly.
• Overpressure shutdown. Decrease pressure to alleviate overpressure condition.