Protocol Of The Interface; Read Commands - Lauda IN 550 XT FC Operation Manual

4.7.5 Protocol of the interface

4.7.6 Read commands

Table 7: Temperature
ID Function
2 Temperature set point
3 Outflow temperature
4 Outflow temperature
5 Controlled temperature (internal / external Pt / external analog / external
serial)
7 External temperature T
8 External temperature T
14 External temperature T
25 Overtemperature turn off point T_Max
27 Limitation of outflow temperature TiH (upper limit)
29 Limitation of outflow temperature TiH (lower limit)
V4
Note the following instructions:
The command from the computer must be made with a CR, CRLF, or
n
LFCR.
The response from the thermostatic circulator is always made with a
n
CRLF.
After each command sent to the thermostat, it is necessary to wait
n
for the reply before sending another command. This ensures that the
sequencing of inquiries and answers is clear.
CR = Carriage Return (Hex: 0D); LF = Line Feed (Hex: 0A)
Table 6: Example with set point transfer of 30.5 °C to the thermostatic
circulator
Computer
"OUT_SP_00_30.5"CRLF
ç
The interface module recognizes the following read commands, which you
can use to retrieve operating data of the constant temperature equipment.
(Pt100)
E
(analog input)
E
(Pt100)
E
Integral process thermostats with flow control unit
Temperature control device
è
"OK"CRLF
Unit, resolu- Command
tion
[°C] IN_SP_00
[°C], 0.01 °C IN_PV_00
[°C], 0.001 °C IN_PV_10
[°C] IN_PV_01
[°C] IN_PV_03
[°C] IN_PV_04
[°C], 0.001 °C IN_PV_13
[°C] IN_SP_03
[°C] IN_SP_04
[°C] IN_SP_05
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