INFICON XTM/2 Thin Film Deposition Monitor - Manual (Page 76)

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XTM/2 Operating Manual
S 6 . . . . . Output status - returns 8 ASCII bytes each with a value of 0 or 1.
S 7 . . . . . Input status - returns 8 ASCII bytes each with a value of 0 or 1.
S 8 . . . . . Present frequency of Crystal
Sxxxxxx.xD
where
x is any digit 0 to 9
S character is a space when good readings are available or a
negative sign for failed crystals
D character is:
0 when there is 0.25 second averaging
0 or 5 when there is 1 second averaging
Even Digit when there is 4 second averaging
x when there is 16 second averaging
S 9 . . . . . Crystal fail, 1 = Fail, 0 = Good
S6 Response String
Output # Function
1 Source Shutter
2 Thick SPT
3 Timer SPT
4 Sensor Fail
Byte 8 7 6 5 4 3 2 1
not used 1 = closed contacts
S7 Response Strings
Input # Function
1 Open Shutter
2 Close Shutter
3 Zero Thickness
4 Zero Timer
5 Crystal Fail Inhibit
Byte 8 7 6 5 4 3 2 1
not used 1 = grounded (active)