Remote I/O Modules
Remote I/O modules are network connection units that link an I/O module group placed next to the machine to the main PLC with a single communication cable. They are used to collect sensor and actuator cables in the field instead of running them all the way to the central panel, to reduce cable and labor costs on long lines, and to build distributed panel structures. The category includes Delta Electronics RTU-485, RTU-CN01, RTU-ECAT and RTU-EN01 and, from the AX-5 series, the AX-500CPN00-0A and AX-500CEC00-0A; these models connect to RS485 Modbus, CANopen, EtherCAT, Modbus TCP and PROFINET networks. Select the module according to the network protocol of the main PLC, the I/O module series that will be attached behind it, and the total number of digital and analog points required. The product names of the RTU models state support for 8 analog DVP-S modules and 256 digital I/O. They should not be confused with communication modules installed on the PLC itself; a remote I/O unit sits at the head of the module group in the field and operates as a station connected to the main device on the network.
Products
- Schneider Electric NTSCSW1000 Edge I/O NTS Configurator software — Schneider Electric · SKU: NTSCSW1000 · Made to order
- Schneider Electric NTSNSC1200K Edge I/O NTS Bus Coupler Module, SERCOS — Schneider Electric · SKU: NTSNSC1200K · TRY 37,140.60 · Made to order
- Schneider Electric BMECRA31210 X80 EIO Drop Adapter, Ethernet Backplane — Schneider Electric · SKU: BMECRA31210 · TRY 89,737.92 · In stock
- Schneider Electric A9XMC1D3 PowerTag C I/O Control Module — Schneider Electric · SKU: A9XMC1D3 · TRY 11,675.94 · Made to order
- Schneider Electric BMXPRA0100 ReMote IO — Schneider Electric · SKU: BMXPRA0100 · TRY 66,497.24 · Made to order
- Schneider Electric BMXCRA31200 M340 RIO DROP E/IP STD — Schneider Electric · SKU: BMXCRA31200 · TRY 67,720.44 · Made to order
- Delta AX-500CEC00-0A EtherCAT Remote I/O Module — Delta Electronics · SKU: AX-500CEC00-0A · TRY 5,094.50 · In stock
- Delta AX-500CPN00-0A ProfiNET Remote I/O Module — Delta Electronics · SKU: AX-500CPN00-0A · TRY 11,887.17 · In stock
- Schneider Electric NTSNEC1200K Edge I/O NTS Bus Coupler Module, EtherNet/IP, Modbus TCP — Schneider Electric · SKU: NTSNEC1200K · TRY 36,807.00 · Made to order
- Schneider Electric NTSNEC1200HK Edge I/O NTS Bus Coupler Module, EtherNet/IP, Modbus TCP, Hardened — Schneider Electric · SKU: NTSNEC1200HK · TRY 37,474.20 · Made to order
- Delta RTU-CN01 CANopen Remote I/O Module, 8 Analog DVP-S Module and 256 Digital I/O Support — Delta Electronics · SKU: RTU-CN01 · TRY 5,094.50 · In stock
- Delta RTU-485 RS485 Remote I/O Module, 8 Analog DVP-S Module and 256 Digital I/O Support — Delta Electronics · SKU: RTU-485 · TRY 3,679.36 · In stock
- Delta RTU-ECAT EtherCAT Remote I/O Module, 8 Analog DVP-S Module and 256 Digital I/O Support — Delta Electronics · SKU: RTU-ECAT · TRY 5,519.04 · In stock
- Delta RTU-EN01 Ethernet Remote I/O Module, 8 Analog DVP-S Module and 256 Digital I/O Support — Delta Electronics · SKU: RTU-EN01 · TRY 6,792.67 · In stock
How to choose Remote I/O Modules
Remote I/O modules are network connection units that link an I/O module group placed next to the machine to the main PLC with a single communication cable. They are used to collect sensor and actuator cables in the field instead of running them all the way to the central panel, to reduce cable and labor costs on long lines, and to build distributed panel structures.
- Separate sensing, motion control, logic processing and operator interface requirements.
- Select signal type, supply voltage, communication protocol and I/O count for the machine network.
- Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.
Frequently asked questions
What is Remote I/O Modules and where is it used?
Remote I/O modules are network connection units that link an I/O module group placed next to the machine to the main PLC with a single communication cable. They are used to collect sensor and actuator cables in the field instead of running them all the way to the central panel, to reduce cable and labor costs on long lines, and to build distributed panel structures.
What should I compare when choosing Remote I/O Modules?
Select the module according to the network protocol of the main PLC, the I/O module series that will be attached behind it, and the total number of digital and analog points required.
Where can I find technical details for Remote I/O Modules products?
They are used to collect sensor and actuator cables in the field instead of running them all the way to the central panel, to reduce cable and labor costs on long lines, and to build distributed panel structures.
Remote I/O Modules Selection Guide: Technical Criteria & Application Standards