n
The command from the computer must be terminated with CR, CRLF
or LFCR.
n
The response from the thermostat is always terminated with CRLF.
n
After every command sent to the thermostat, it is necessary to wait for
a response before the next command can be sent. This way, the alloca-
tion of queries and responses is clear.
CR = Carriage Return (hex: 0D); LF = Line Feed (hex: 0A)
Tab. 9: Example for setpoint transfer of 30.5 °C to the thermostat.
Computer
Thermostat
"OUT_SP_00_30.5"CRLF
"OK"CRLF
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 decimal 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:
n
For "_", " " (space character) is also permitted.
n
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
Permitted data formats
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