Instructions

Anybus M-Bus to Modbus-TCP Gateway User Manual Doc: HMSI-27-300, Rev: 1.10
Chapter 6
6. Troubleshooting
This section lists some of the most common problems and suggestions how to solve them.
If you still cannot solve your problem, please contact Anybus support.
6.1 Hardware errors
6.1.1 Gateway does not respond
After powering the gateway it does not operate. Current consumption is about 0 mA and both
Ethernet LEDs are unlit.
1. Check that the power supply is connected with the correct polarity.
2. Check that the power supply voltage is approximately 24 VDC measured between terminals
“24VDC” and “GND”.
6.1.2 Current consumption too high
After powering the gateway, current consumption rises above 500 mA.
1. Check that the M-Bus connection voltage is approximately 36 VDC measured between terminals
“MBUS+” and “MBUS-”.
2. Disconnect the gateway from the M-Bus.
- Check if the current consumption is back to normal.
- Measure the M-Bus connection voltage again.
3. Check if the Ethernet LEDs are flashing.