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I am a materials graduate student at CSM with little Modbus experience, and for my thesis project I need to control an ABB ACS800 drive with LabVIEW 2015 using Modbus TCP through the ABB RETA-01 Ethernet adapter module.
The drive is connected to the computer through an USB to Ethernet dongle to an Ethernet switch then to the drive (Eventually I need to have two ACS800 running simultaneously, this setup was recommended by ABB)
Working with the local, ABB distributor I have configured the drive for use through Modbus and have the main control word built. National Instruments has walked me through the required programming to use Modbus, so I do not believe that either of these are the problem (I could be wrong). I have the correct IP address of the drive in LabVIEW and am writing to holding registers (40001 - 40003) and reading (40004 - 40006).
I am working on ensuring the TCP port 502 is open and able to be used for communication. I also noticed that the network status LED is blinking green on the RETA-01 Ethernet adapter module and the manual says it should be solid green.
I am converting the main control word from a 16-bit binary string into a decimal and sending that to the drive, is this the correct procedure?
What is causing the LED to blink, and how can I resolve it?
How do I code the speed references to send to the drive?
The drive is connected to the computer through an USB to Ethernet dongle to an Ethernet switch then to the drive (Eventually I need to have two ACS800 running simultaneously, this setup was recommended by ABB)
Working with the local, ABB distributor I have configured the drive for use through Modbus and have the main control word built. National Instruments has walked me through the required programming to use Modbus, so I do not believe that either of these are the problem (I could be wrong). I have the correct IP address of the drive in LabVIEW and am writing to holding registers (40001 - 40003) and reading (40004 - 40006).
I am working on ensuring the TCP port 502 is open and able to be used for communication. I also noticed that the network status LED is blinking green on the RETA-01 Ethernet adapter module and the manual says it should be solid green.
I am converting the main control word from a 16-bit binary string into a decimal and sending that to the drive, is this the correct procedure?
What is causing the LED to blink, and how can I resolve it?
How do I code the speed references to send to the drive?
