MKS 651C, Instruction Manual, Page: 145 / 172

Appendix F: Command and Request Reference Command Reference
131
RS-232 Command Summary (Continued)
Command Function
Y1 value Calibrate span of A/D converter; calibrate position output
and zeroed pressure output. The controller will assign
value to the converter reading of the pressure channel.
Y2 Learn the full scale of the analog set point. Assigns
current value of external analog set point to the full scale
value. If the current value of the analog set point exceeds
±
15% of full scale, the controller ignores the command and
does not change the current full scale value.
L
Learn the system (Self-Tuning control)
Q
Stop the learn function (while in process)
J value Calibrate the valve, where value is:
1 = Std 253
2 = Fast 253
3 = 653
A value
Analog set point range where value is:
0 = 5 Volts
1 = 10 Volts
T1 value
Set point A type where value is:
0 = position
1 = pressure
T2 value
Set point B type where value is:
0 = position
1 = pressure
T3 value
Set point C type where value is:
0 = position
1 = pressure
T4 value
Set point D type where value is:
0 = position
1 = pressure
Table 26: RS-232 Command Summary
(Continued on next page)