The DO880 is a 16-channel 24 V digital output module for single or redundant applications. The maximum continuous output current per channel is 0.5 A. The outputs are current-limited and protected against overtemperature. Each output channel consists of a current-limited and over-temperature-protected high-side driver, EMC protection components, inductive load suppression, output state indication LED, and an isolation barrier to the Modulebus.
Features and benefits
- 16 channels for 24 V d.c. current sourcing outputs in one isolated group
- Redundant or single configuration
- Loop monitoring, supervision of short and open load with configurable limits
- Diagnostic of output switches without pulsing on outputs
- Advanced on-board diagnostics
- Supports S880 I/O High Integrity (PM857, PM858, PM862, PM863, PM867, PM866A and PM891)
- Output status indicators (activated/error)
- Degraded mode for normally energized channels (supported from DO880 PR:G)
- Current limitation at short circuit and over-temperature protection of switches
- Fault tolerance of 1 (as defined in IEC 61508) for output drivers. For ND (Normally De-energized) systems, outputs can still be controlled with error on output drivers
- Certified for SIL3 according to IEC 61508
- Certified for Category 4 according to EN 954-1.