Using a Third-Party Modbus Client

If you are using another Modbus client to communicate with the cFP-180x, you may need both the FieldPoint Modbus addresses and the function codes that FieldPoint supports.

You need to determine whether your Modbus client uses zero-based or 1-based addressing. Some Modbus clients let you select the address base. If your Modbus client uses zero-based addressing, you can use the FieldPoint Modbus addresses as they appear in this help file. If the client uses 1-based addressing, you must add one to all FieldPoint addresses. For example, if the FieldPoint Modbus address is 02015, you would convert it to 02016.