Hi,

I am trying to configure a sensor to record data using a DT82I.

I have the sensor connected to the green serial connector on the front of the logger. The sensor communicates using MODBUS.

I am attempting to use the following code to log the temperature data from the sensor as 1CV:

1MODBUS(AD1,R4:15,MBF,=1CV)

I keep getting an error code "E122 - Command incompatible with configured port function at column 28 [ ,MBF,=1CV)<err> ]"

I currently have the port configured with the following settings (based off reccomendations from the sensor manufacturer):

BPS = 19200
DATA_BITS = 8
STOP_BITS = 2
PARITY = NONE
FLOW = NONE
MODE = RS485
FUNCTION = MODBUS

I tried switching the function from MODBUS to SERIAL but get the same error message.

This is the first time using a DT82I logger and I am not too familiar with the language. Anyone happen to have an idea on what I am doing wrong here?

Thanks!
Stevemo

Hi stevemo,

Please set the port function to MODBUS_MASTER:
BPS = 19200
DATA_BITS = 8
STOP_BITS = 2
PARITY = NONE
FLOW = NONE
MODE = RS485
FUNCTION = MODBUS_MASTER

MODBUS only setting indicates you want the logger to act as MODBUS Slave, useful for integration with PLC but not for reading the MODBUS sensor.

Best regards,
Rudy Gunawan