Description
IF-96001: RS485 Communication Interface for Nemo 96HD/HD+ Series
The IF-96001 module, when combined with meters from the Nemo 96HD/HD+ series, provides access to all relevant measurement data and configuration parameters via RS485 communication.
RS485 Communication Specifications:
- Isolation: Galvanically insulated from measurement inputs and auxiliary power.
- Standard: RS485 – 3-wire.
- Transmission: Asynchronous serial.
- Protocol: Compatible with JBUS/MODBUS.
- Data Configuration:
- Bit number: 8
- Stop bit: 1
- Response time to requests: ≤ 200ms
- Maximum devices connectable: 32 (up to 255 with RS485 repeater)
- Maximum distance from supervisor: 1200m
Programmable Parameters:
- Address range: 1 to 255
- Baud Rate options: 4,800, 9,600, 19,200 or 38,400 bps (38.400 only for Nemo 96HD/HD+)
- Parity: None, Even, Odd
- Modbus message word format options: Big Endian, Little Endian, Swap
Example Message:
- Request: FF 03 03 01 00 02 80 51
- Response (variations):
- Big Endian: FF 03 04 01 02 03 04 XX YY
- Little Endian: FF 03 04 04 03 02 01 XX YY
- Swap: FF 03 04 03 04 01 02 XX YY
Auxiliary Supply:
Insulation (EN61010):
- A.C. voltage test: 2kV, 50Hz for 1 minute.
- Circuits considered: measurement input, auxiliary power, RS485 communication.
Housing:
- Device module with connector for Nemo 96HD/HD+.
- Maximum depth: 81mm (including the module).
- Connections: Screw terminals, accommodating:
- Rigid cable: max. 4.5mm²
- Flexible cable: max. 2.4mm²
- Housing material: Self-extinguishing polycarbonate.
- Weight: 30 grams.
Firmware Update:
Using the IF-96001 (RS485) or IF-96002 (RS232) communication module, users can update the firmware version directly in the field with a PC and the necessary software.
