tflemer (Customer) asked a question.
Click Plus ladder logic example for MODBUS connection to APC NMC2 card.
The Schneider Electric-APC Network Management Cards have a MODBUS TCP port. APPLICATION NOTE #176 (attached) provides detailed information on connecting to the NMC. Rockwell Automation has a snippet that can be a starting point for MODBUS ladder logic(attached). NMC cards allow UPS access via a web port. After some research, there are paths to the NMC via Node-Red either through a defined flow for APC or the flow for MODBUS. The concept of being able to connect a Click Plus PLC and Cmore HMI would be the most direct. I have some experience with connecting MODBUS in Click Plus. However, do not want to reinvent the wheel before asking if others have logic examples.
Adobe PDF Modbus_Implementation_in_APC_Smart-UPS_v12Adobe PDF Rockwell Automation-APC
Hi @tflemer (Customer)
I do not have the exact example you are looking for, but here is something similar.
https://accautomation.ca/click-plc-to-stride-field-io-modbus-tcp/
Using the Rockwell snippet, you can see where the address will be in this example.
Here is a video:
https://youtu.be/NcCNoJfSZL4
I hope this helps you out.
Regards,
Garry
ACC Automation
Garry, yes. This is helpful information. Also, the Stride modules look interesting. I can connect the APC UPS via MODBUS as shown in the attached image. The APC Application Note has pages of MODBUS addresses. Mony, most go beyond what is needed since the Network Management Card have a http access point. The floating-point values are fairly easy to pull across. A number of registers are Bit Field. The Click Copy Unpack/Pack appear to be working. However, the bits in a pack are not functioning. More sleuthing is needed. Seeing the voltages and state of charge from the C-more panel is good for now. BTW-the C-more panel works very well.