Hi,
I have a problem with modbus rtu communication between a wartsila unic and saia plc.
Tested communication on saia plc (master) using mod_rssim (slave) through rs-232 port on PLC to PC. This is working correctly.
Tested communication on wartsila unic (slave) using modbus master simulator through RS-485 (converter to PC). This is working correctly.
When connecting them together through a rs-485 to rs-232 converter there is no communication.
I can't seem to find a solution for this. Have tested two different converters without any luck.
Does anyone have a tips for this? What am i missing?
Best regards
I have a problem with modbus rtu communication between a wartsila unic and saia plc.
Tested communication on saia plc (master) using mod_rssim (slave) through rs-232 port on PLC to PC. This is working correctly.
Tested communication on wartsila unic (slave) using modbus master simulator through RS-485 (converter to PC). This is working correctly.
When connecting them together through a rs-485 to rs-232 converter there is no communication.
I can't seem to find a solution for this. Have tested two different converters without any luck.
Does anyone have a tips for this? What am i missing?
Best regards