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Control Messages
The control messages directly control the actions of the valve and the system.
Table 9: RS-232 Control Messages
Description Command Request Response
Activate Setpoint
D x
x: 0 = Analog Setpoint
1 = Setpoint
A
2 = Setpoint B
3 = Setpoint C
4 = Setpoint D
5 = Setpoint E
R7
M x y z w
x:
Active Setpoint
0 = Analog S
etpoint
1 = Setpoint A
2 = Setpoint B
3 = Setpoint C
4 = Setpoint D
5 = Setpoint E
6 = Valve Open
7 = Valve Closed
8 = Valve Stop
9 = Valve Learning
y:
Valve Status
0 = Controlli
ng
2 = Valve open
4 = Valve close
z:
Pressure
0 =
≤ 10% FS
1 = > 10% FS
w: Active Sensor/Channel
Select/Zero Adjust
0 = L/A/D
1 = H/A/D
3 = H/H/D
4 = L/A/E
5 = H/A/E
7 = H/H/E
8 = L/L/D
: = L/L/E
Valve Open
(drives valve fully open)
O*
None None
Valve Close
(drives valve fully closed)
C*
None None
Valve Stop
(stops valve in current position)
H*
None None
Sensor Zero
(corrects sensor zero offsets)
Z 1
None None
Special Zero
(zeros base pressure)
Z 2 value
value:
% FS pressure
None
None
(continued on the next page)