Polycold Cryochiller
Host Commands
Installation and Operation Manual
System Sensor Readings
Brooks Automation
214072 Revision B
7-25
SYSTEM_VALVE_STATE Valve Open/Closed State for system valves.
CLDST_LQD_TEMP Unit Coldest Liquid Temperature
COLD_JUNCT_TEMP Cold Junction Temperature
Purpose:
Get the open/closed state of a system valve. A value of 1 indicates the
valve is open. A value of 0 indicates the valve is closed.
Parameter(s):
[n],?
[n] is Valve identifier:
0 = Buffer
1 = Not Used
2 = Not Used
3 = Cylinder Unloader
4 = Freeze Out Prevention
Return Value:
[A] [n]
Default Value:
N/A
Security Level
Get: 1
Set: N/A
Example:
“SYSTEM_VALVE_STATE,0,?”
Interface
RS-232, Ethernet
Note:
Purpose:
Get the unit coldest liquid temperature sensor value. (TC4)
Parameter(s):
?
Return Value:
[A][nnnn]
Default Value:
N/A
Units:
Degrees Celsius (signed)
Security Level
Get: 1
Set: N/A
Example:
“CLDST_LQD_TEMP,?”
Interface
RS-232, Ethernet
Purpose:
Get the cold junction temperature. (TC21)
Parameter(s):
?
Return Value:
[A][nnn.n]
Default Value:
N/A
