31.10.2016, 20:20
Hello,
I have been running my HVAC system with LM for while now and it works like charm.
But now I have connected my heatpump to the modbus circuit with an interface, and now it generates alot of CRC and time out errors for me.
Everything is set on 19200 baud, the HVAC runs on ID 1, and the HP on ID 8.
Since I've connected the HP interface, telegrams aren't always comming through, not just polling but also commans that I send to the HVAC system.
I'm aware that it's probably the HP interface that is poorly designed, but how can I dig deeper into this to find out the real problem?
The interface is developed by a small company, so if I just figure out whats wrong they'll probably help me with a new firmware.
I have been running my HVAC system with LM for while now and it works like charm.
But now I have connected my heatpump to the modbus circuit with an interface, and now it generates alot of CRC and time out errors for me.
Everything is set on 19200 baud, the HVAC runs on ID 1, and the HP on ID 8.
Since I've connected the HP interface, telegrams aren't always comming through, not just polling but also commans that I send to the HVAC system.
I'm aware that it's probably the HP interface that is poorly designed, but how can I dig deeper into this to find out the real problem?
The interface is developed by a small company, so if I just figure out whats wrong they'll probably help me with a new firmware.