Manufacturers
IOS/M04IPX-D1 IMO Remote I/O module, RS485 (HD) 4 A/D In (RTD) Res: 0.1C
MPN: IOS/M04IPX-D1
Alt. SKU: IOSM04IPXD1
Special Price
£310.75
£258.96
Regular Price
£379.50
IOS/M04IPX-D1 IMO Remote I/O module, RS485 (HD) 4 A/D In (RTD) Res: 0.1C is available to buy in increments of 1
Why Choose the IMO IOS/M04IPX-D1 Remote I/O Module?
The IOS/M04IPX-D1 is a robust RS-485 (half-duplex) Modbus RTU remote I/O module featuring 4 RTD analog inputs with 0.1 °C resolution. Designed for 20.4–28.8 V DC panel power, it enables precise temperature measurement via Pt100 sensors at remote machine stations or process skids, reducing wiring back to your PLC and simplifying distributed monitoring.
Key Features of the IOS/M04IPX-D1 Module
- 4 RTD Analog Inputs: Supports 2-, 3- or 4-wire Pt100 sensors with 0.1 °C resolution and –200 °C to +850 °C range.
- Modbus RTU Interface: RS-485 half-duplex bus, up to 32 nodes per segment.
- Operating Voltage: 20.4–28.8 V DC (nominal).
- Compact Form Factor: 176.6 × 50 × 39 mm; DIN-rail mountable IP20 enclosure.
- Status LEDs: Power, RS-485 link/activity, and per-channel fault indicators.
- Rugged Design: CE-compliant for industrial environments, –25 °C to +70 °C storage.
How to Install the IOS/M04IPX-D1 Module
Snap the IOS/M04IPX-D1 onto a standard 35 mm DIN rail. Wire 20.4–28.8 V DC to the power terminals. Connect your Pt100 sensors to the A+, B– and (if required) shield terminals. Terminate and daisy-chain your RS-485 bus to the A/B Modbus port, set the station address and baud rate via DIP switches, then power up. Verify proper operation by checking the LEDs—each channel LED will flash during sensor excitation and remain steady when in range.
IMO IOS/M04IPX-D1 – 4 Pt100 RTD Inputs via Modbus RTU
The IOS/M04IPX-D1 expands your Modbus RTU network with high-accuracy RTD inputs, offloading temperature sensing from central I/O racks. Its 0.1 °C resolution and support for standard Pt100 configurations ensure reliable process control and data logging. The module’s built-in excitation and cold-junction compensation guarantee stable readings in harsh environments.
Engineered for industrial panels, the device offers robust surge protection, opto-isolated inputs, and LED diagnostics for fast troubleshooting. Its compact footprint and DIN-rail design simplify panel layouts and reduce wiring complexity.
Frequently Asked Questions About the IOS/M04IPX-D1
- Which RTD types are supported?
- What temperature range and resolution does it offer?
- How many modules can I place on one RS-485 bus?
- What Modbus registers are used for reading temperatures?
- Is the module hot-swappable?
The IOS/M04IPX-D1 supports standard Pt100 RTDs in 2-, 3- or 4-wire configurations.
Measurement range is –200 °C to +850 °C with 0.1 °C resolution.
Up to 32 Modbus RTU slave modules per segment, subject to master capacity and bus topology.
The module maps each RTD input to consecutive Input Register addresses (e.g., 30001–30004). Consult the datasheet for the exact register map and scaling factors.
No—power down the RS-485 segment before insertion or removal to prevent communication errors.
