MKS 651D Series, User Manual, Page: 156 / 162

Appendix E: RS-232 Message Summary
144
3 = Set Point C
4 = Set Point D
5 = Set Point E
6 = Analog Set Pt
value: 0 = Position
1 = Pressure*
27 = Set Point B
28 = Set Point C
29 = Set Point D
30 = Set Point E 2 = Set Point B
3 = Set Point C
4 = Set Point D
5 = Set Point E
value:
0 = Position
1 = Pressure
U value
value: 0 = Absolute
Sensor Type R 36 U value
value:
0 = Absolute
Table 20: RS-232 Message Summary
(Continued on next page)
RS-232 Message Summary (Continued)
Command Description Request Response
V value
value: 1 = PID
Pressure Control
Mode R 51
V value
value:
1 = PID
Valve Battery
Back-Up Status
•
NO COMMAND
Reports the voltage
status of the optional
valve failsafe battery
back-up R 39 BT x
x:
0 = Battery voltage is
out of range
1 = Battery voltage is
within acceptable
range
2 = Battery back-up
option is not
installed
X x value
x: 1 = Phase SP A
2 = Phase SP B
3 = Phase SP C
4 = Phase SP D
5 = Phase SP E
value: 0 to 100%
Phase R xx
xx: 41 = Phase SP A
42 = Phase SP B
43 = Phase SP C
44 = Phase SP D
45 = Phase SP E
X x value
x
: 1 = Phase SP A
2 = Phase SP B
3 = Phase SP C
4 = Phase SP D
5 = Phase SP E
value:
0 to 100%
Y1 value Calibrate A/D
Converter R 52
Reports status of A/D
converter calibration
CS value
value:
0 = OK
1 = Error
Table 20: RS-232 Message Summary
(Continued on next page)