MKS 651D Series, User Manual, Page: 109 / 162

Chapter Five: Remote RS-232 Operation Control Messages
97
Control Messages
The control messages directly control the actions of the valve and the system.
RS-232 Control Messages
Description Command Request Response
Activate Set Point 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
R7
M x y z w
X
:
Active Set
Point
0 = Analog Set Pt
1 = Set Point A
2 = Set Point B
3 = Set Point C
4 = Set Point D
5 = Set Point E
6 = Valve Open
7 = Valve Closed
8 = Valve Stop
Y
:
Valve Status
0 = Controlling
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
•
drive valve fully
closed
C* None None