The product does not respond to M-Bus master commands
Cause
Fault in connection/configuration.
Solution
Verify that:
Voltage over M-Bus connection is between 21 VDC and 42 VDC.
All M-Bus slaves connected to the M-Bus master have unique primary addresses or secondary addresses, depending on addressing mode.
M-Bus master baud rate is identical to M-Bus slave baud rate.
The product cannot control the connected unit
Solution
Disconnect the cables to the unit to be controlled, e.g. the actuator. Measure the output with a multimeter while an M-Bus command is sent to change the output. If this works, there is probably an error in the connection to the input of the unit to be controlled.
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