Yokogawa SEC401-11 Safety Bus Coupler Module
- Product Introduction: It is a safety bus coupler module for Yokogawa's ProSafe - RS safety instrumented system. It is used to connect the safety field bus (ESB) and the safety I/O module, realize the data transmission between the safety controller and the field safety instrument, and meet the safety communication requirements of SIL 2/SIL 3 systems.
- Technical Specifications:
- Safety bus: ESB bus, communication speed 1 Mbps.
- Number of connected modules: Up to 32 safety I/O modules can be connected.
- Working voltage: 24V DC, current consumption ≤ 600mA.
- Isolation: 2kV AC between the bus and the system for 1 minute.









