Hi all,
This is my first post since joining the forum. I have worked in the hvac industry for 16 years swapping many bms components and a time served refrigeration engineer and now have been trying to further my knowledge of the workings behind the scenes.
I've a modbus rtu setup for testing, I'm trialing a connection to a mitsubishi electric frd700 inverter direct from my desktop via an rs485/USB converter on comm3.
I can interface with the drive via modscan64 and manually alter the binary registers to signal the drive to run, stop and vary the frequency etc. No problems.
I have a trial of quickhmi, I have setup the data source correctly but am struggling to communicate with the drive. Slave id , baud rate, parity etc all match modscan64 settings. The drive is set as a slave in the hmi. The register I'm trying to access is hr 9 (40009) I'm referencing it as hr8 with a byte variable type. Then trying to write the hex conversion of the new binary byte to the register.
Any advice would be helpful!
This is my first post since joining the forum. I have worked in the hvac industry for 16 years swapping many bms components and a time served refrigeration engineer and now have been trying to further my knowledge of the workings behind the scenes.
I've a modbus rtu setup for testing, I'm trialing a connection to a mitsubishi electric frd700 inverter direct from my desktop via an rs485/USB converter on comm3.
I can interface with the drive via modscan64 and manually alter the binary registers to signal the drive to run, stop and vary the frequency etc. No problems.
I have a trial of quickhmi, I have setup the data source correctly but am struggling to communicate with the drive. Slave id , baud rate, parity etc all match modscan64 settings. The drive is set as a slave in the hmi. The register I'm trying to access is hr 9 (40009) I'm referencing it as hr8 with a byte variable type. Then trying to write the hex conversion of the new binary byte to the register.
Any advice would be helpful!