MKS 651D Series User Manual

Appendix E: RS-232 Message Summary
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Appendix E: RS-232 Message Summary
The RS-232 messages required for operation of the 651 controller are listed alphabetically—by
command—in Table 20. For complete information on any RS-232 message, refer to Chapter
Five: Remote RS-232 Operation, page 67.
RS-232 Message Summary
Command Description Request Response
A value
value: 0 = 5 V*
1 = 10 V
Analog Set Point
Range
R 24
A value
value: 0 = 5 V
1 = 10 V
B value
value: 0 = 5 V
1 = 10 V*
Valve Position Signal
Output Range
R 31
B value
value: 0 = 5 V
1 = 10 V
BE value
value: 0 = Disable
1 = Enable
BackFill RBE BE value
value: 0 = Disable
1 = Enable
BL value BackFill Limit RBL BL value
C Valve Close
• drives valve fully
closed
None None
Checksum Status Reports the status of
the A/D converter
calibration
R 52
CS value
value: 0 = OK
1 = Error
D x
x: 1 = Set Point A
2 = Set Point B
3 = Set Point C
4 = Set Point D
5 = Set Point E
0 = Analog Set Pt
Activate Set Point R 7
Reports:
• active set point
• valve status
• pressure
M x y z w
X: Active Set Pt
0 = Analog Set Pt
1 = Set Point A
2 = Set Point B
3 = Set Point C
4 = Set Point D
5 = Set Point E
Y: Valve Status
0 = Controlling
2 = Valve open
4 = Valve close
Z: Pressure
0 = ≤ 10% FS
1 = > 10% FS

MKS 651D Series Specifications

General

Brand	MKS
Model	651D Series
Category	Controller
Language	English