i want to use a DT85 to query a Modbus RTU Sensor(Meier-NT Soitemperature Probe).
From my point of view i did all the necessary configuration but somehow i dont get any response from it.
Here is my Setup:
A-Wire: TxZ B-Wire: RTSy Power: 12V Source Ground: Common Ground with DGND
[SERSEN_PORT] *BPS = 19200 DATA_BITS = 8 STOP_BITS = 1 *PARITY = NONE FLOW = NONE *MODE = RS485 *FUNCTION = MODBUS_MASTER
I guessed the flowcontroll because it is not clear from the documentation of the sensor
Reference from Sensor documentation(german):
I know that the sensor is working since when i connect it the same way to another datalogger(Meier-NT ADL-MX) it works.
Here is the output when trying to query the sensor with P56=4:
DT85> 1modbus(ad2,R3:30003) 1modbus(ad2,R3:30003) Modbus TX >SS: 02 04753200018a3a (8) Modbus timeout dataTaker 85 E124 - Modbus transaction failed 1MODBUS NotYetSet
Is there any other way to debug or am i doing something wrong?