The OMRON SRT1-ID04 is a 4-point transistor remote terminal block for CompoBus/S industrial automation networks. It converts discrete transistor input signals into high-speed serial data, enabling direct PLC integration via photocoupler-isolated inputs. Operating at 750 kbps communication speed, this compact module provides ON/OFF status indication through individual yellow LEDs and DIN-track mounting for streamlined control system assembly.
Technical Specifications
• Communication Protocol: CompoBus/S, 750 kbps high-speed mode only
• Input Points: 4 channels
• Input Type: NPN transistor
• Input Current: 6 mA maximum per point
• Input Threshold: 15 VDC minimum (ON), 5 VDC maximum (OFF)
• OFF Leakage Current: 1 mA maximum
• Response Time: 1.5 ms maximum (ON and OFF delays)
• Insulation Method: Photocoupler
• Communications Power Supply: 14–26.4 VDC
• I/O Power Supply: 24 VDC ±10%/−15%
• I/O Current Draw: 1 A maximum
• Module Current Consumption: 50 mA maximum at 24 VDC (excluding external sensors)
• Weight: 80 g maximum
• Mounting: DIN track and screw options
– Key Features
• Yellow LED indicators display real-time ON/OFF status for each input channel
• Green PWR LED confirms communications power presence
• Multi-drop and T-branch network topology support (T-branch secondary branches restricted)
• Compatible with VCTF and flat cable communication lines
– Typical Applications
Discrete sensor input aggregation in manufacturing control systems, machine vision triggers, pneumatic/hydraulic valve feedback networks, and safety interlock monitoring across distributed CompoBus/S installations.
– Compatibility & Integration
Functions within OMRON CompoBus/S master units including C200HW-SRM21-V1, CS1W-SRM21, CJ1W-SRM21, and CQM1-SRM21-V1 series. Cross-compatible with SRT1 and SRT2 series remote terminals for modular system expansion.
