Hi I am trying to collect data from a device but cannot get the correct I/O  type - always getting an Illegal Data Address error The device documentation (attached see p15) is very explicit and I can replicate the example provided using modbus poll software I have tried all 12 type 3 I/O (in sheer frustration!!) but I cannot get any data from the 3 registers ox9013-9015 (Decimal 36883-36885) I have tried both the Channel approach and a group read sequence but with no luck ( I