Delta Electronics — Remote I/O Systems
The Delta RIO-200 series provides an affordable yet reliable remote I/O solution supporting both MODBUS TCP and MODBUS RTU protocols for seamless integration with Delta's DVP and AS series PLCs as well as third-party controllers. The compact form factor with tool-less terminal block connectors simplifies field installation and maintenance. Each module offers mixed digital and analog I/O in a single unit, reducing the total number of modules required for basic distributed control tasks. The RIO-200 also supports daisy-chain wiring for reduced cabling costs in multi-drop configurations.
| Protocol | MODBUS TCP, MODBUS RTU |
| I/O Mix | Digital and analog in single module |
| Wiring Topology | Star or daisy-chain |
| Terminals | Tool-less spring terminals |
| Operating Temperature | -10 to +55 °C |
| Protection Rating | IP20 |
Cost-sensitive distributed I/O for HVAC and building management systems
MODBUS sensor aggregation in greenhouse and agricultural automation
Simple on/off control and status feedback for small conveyor systems
Retrofit I/O expansion for legacy MODBUS-based control networks
Our engineering team provides full lifecycle support for this product — from design and programming to commissioning and maintenance.
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