Lauda MC 250 - RS232 Communication Commands; Write Commands; Read Commands

6.7.3 Write commands
The write commands are data specifications to the thermostat.
Command Meaning
OUT_SP_00_XXX.XX Setpoint transfer with max. 3 digits before the dec-
imal point and max. 2 digits afterwards
OUT_SP_04_XXX [Hi] Upper limit of flow temperature
OUT_SP_05_XXX [Lo] Lower limit of flow temperature
START Switches on device (from standby)
STOP Switches device to standby (pump, refrigeration unit
off).
Note the following:
 For "_", " " (space character) is also permitted.
 Response from the thermostat “OK” or “ERR_X” in the case of
an error.
-XXX.XX -XXX.X -XXX. -XXX XXX.XX XXX.X XXX. XXX
-XX.XX -XX.X -XX. -XX XX.XX XX.X XX. XX
-X.XX -X.X -X. -X X.XX X.X X. X
-.XX -.X .XX .X
6.7.4 Read commands
The following read commands are data requests to the thermostat.
Command Meaning
IN_PV_00 Query of the bath temperature (outlet temperature)
IN_SP_00 Query of the temperature setpoint
IN_SP_04 Query of the outlet temperature limit Hi
IN_SP_05 Query of the outlet temperature limit Lo
TYPE Query of the device type (response = "MC").
VERSION Query of the software version number
Permitted data formats
Operation
Microcool 46