7.2.2 Read commands
The interface module recognizes the following read commands, which you
can use to retrieve operating data of the constant temperature equipment.
Table 3: Temperature
ID Function
Unit, resolu-
tion
Command
2 Temperature set point
[°C]
IN_SP_00
3 Bath temperature (outflow temperature)
[°C], 0.01 °C IN_PV_00
5 Controlled temperature (internal / external Pt / external analog / external
serial)
[°C]
IN_PV_01
7 External temperature T
E
(Pt)
[°C]
IN_PV_03
8 External temperature T
E
(analog input)
[°C]
IN_PV_04
25 Overtemperature turn off point T_Max
[°C]
IN_SP_03
27 Limitation of outflow temperature TiH (upper limit)
[°C]
IN_SP_04
29 Limitation of outflow temperature TiH (lower limit)
[°C]
IN_SP_05
33 Set temperature T
set
in Safe Mode (safe set point in case of communication
interruption).
[°C]
IN_SP_07
Table 4: Pump
ID Function
Unit
Command
6 Outflow pressure / pump pressure, relative to the atmosphere
[bar]
IN_PV_02
12 Flow rate of the pump
(MID flow controller must be connected)
[l/min]
IN_PV_07
18 Pump power stage
[–]
IN_SP_01
31 Outflow pressure set point / pump pressure (for pressure control settings)
[bar]
IN_SP_06
37 Flow rate control set point
[L/min]
IN_SP_09
71 Status of flow rate control: 0 = off / 1 = on
[–]
IN_MODE_05
Table 5: Fill level
ID Function
Unit
Command
9 Bath level (fill level)
[–]
IN_PV_05
Table 6: Cooling
ID Function
Unit
Command
24 Cooling mode: 0 = off / 1 = on / 2 = automatic
[–]
IN_SP_02
V2R4
Interface module LRZ 921
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