Overview
The SRC Series Plug-in Type I/O Modules adopt a structure combining coupler modules, power modules, and I/O modules. The coupler connects scalable I/O modules to the real-time industrial Ethernet system, with the backplane adopting the S-Link bus. The coupler module is responsible for fieldbus communication, thereby realizing the function of real-time data exchange between various I/O modules and the coupler/controller.
The SRC Series Modules feature a rich variety and high real-time performance, providing guarantees for users in terms of high-speed data acquisition, system configuration optimization, on-site wiring simplification, and

| Model |
Description |
| SRC8100 |
Profinet Bus Coupler Module |
| SRC8200 |
EtherCAT Bus Coupler Module |
| SRC2116 |
16-Channel Digital Output Module, NPN Type, 24VDC, 0.5A |
| SRC2216 |
16-Channel Digital Output Module, PNP Type, 24VDC, 0.5A |
| SRC1116 |
16-Channel Digital Input Module, NPN Type, 24VDC, Filtering: 3ms |
| SRC1216 |
16-Channel Digital Input Module, PNP Type, 24VDC, Filtering: 3ms |
| SRC3118 |
8-Channel Analog Voltage Input Module |
| SRC3138 |
8-Channel Analog Current Input Module |
| SRC4018 |
8-Channel Analog Voltage Output Module |
| SRC4038 |
8-Channel Analog Current Output Module |
| SRC3601 |
1-Channel Electric Energy Acquisition Module, 690V, 5A, 5 groups of software acquisition channels |
| SRC3602 |
1-Channel Electric Energy Acquisition Module, 120V, 5A, 15 groups of software acquisition channels, PT/CT Transformation Ratio |
| SRC3603 |
1-Channel Electric Energy Acquisition Module, 690V, 5A, 5 groups of software acquisition channels, with added frequency change rate |
| SRC3604 |
1-Channel Electric Energy Acquisition Module, 690V, 5A, 15 groups of software acquisition channels |
| SRC3804 |
4-Channel Resistance Thermometer & Thermocouple Temperature Acquisition Module |
| SRC5001 |
24V Single-Ended Incremental Encoder Counting Module |
| SRC5031 |
5V Differential Incremental Encoder Counting Module |
| SRC5041 |
SSI Encoder Counting Module |
| SRC5042 |
2-Channel High-Speed Pulse Counting Module |
| SRC6041 |
RS485/RS422/RS232 Gateway Module |
| SRC6051 |
CANopen Master Gateway Module |