Modbus RTU RS485 Mixed I/O Module 4AI-4DI-4DO – 4-20 mA or 0-10 V Inputs, 10 A Relays, 12/24 VDC, DIN Rail

Description

Mixed I/O expansion module with 4 analog inputs, 4 isolated digital inputs and 4 relay outputs on a Modbus RTU (RS485) bus, supplied in a 35 mm DIN-rail enclosure. Use it to bring tank-level, pressure or temperature transmitters plus dry contacts into a PLC, RTU or SCADA master and to switch pumps, alarms or solenoids from the same unit.

Versions

• Current input: 4 x 0-20 mA / 4-20 mA analog inputs (R4DIK04)
• Voltage input: 4 x 0-5 V / 0-10 V analog inputs (R4DVI041)
• Supply: 12 VDC or 24 VDC (select variant)

Specifications

• Digital inputs: 4 x NPN, opto-isolated
• Relay outputs: 4 x relay, max load 10 A at 250 VAC / 125 VAC / 30 VDC
• Protocol: Modbus RTU over RS485; function codes 01, 02, 03, 04, 05, 06, 15, 16
• Bus: Up to 64 devices in parallel
• Baud rate: 9600 bps default; 1200 to 115200 bps selectable; none / even / odd parity
• Response delay: Adjustable, up to 1000 ms
• Protection: TVS surge protection; hardware factory reset (RES jumper)
• Current draw: Standby 10 mA; 120 mA with 4 relays on
• Size with enclosure: 95 x 82 x 40 mm, 167 g
• Enclosure: UM72 DIN-rail box, flame-retardant V0 grade, fits DIN35 and C45 rail

Data as listed in the product specification.