- TIM 1531 IRC Communications module for SIMATIC S7-1500, S7-400, S7-300, and ET200SP
- Supports communication protocols: SINAUT ST7, DNP3, IEC 60870-5-101/104
- Three RJ45 interfaces for communication via IP-based networks (WAN/LAN)
- RS-232/RS-485 interface for communication via classic wide area networks