The ABB DO571 is an S500-eCo digital output module designed for ABB AC500 and AC500-eCo PLC automation systems. It provides 8 normally-open relay outputs, allowing a PLC to switch external AC or DC loads such as contactors, solenoid valves, relays, lamps, alarms, and other industrial control devices.
Features
- 8 normally-open relay output channels
- Maximum 2 A switching current per output
- Supports both AC and DC loads
- Suitable for 24 V AC/DC and 100–240 V AC
- Outputs divided into two galvanically isolated groups
- Individual yellow LED indication for each output
- Compact DIN-rail mounting design
- Compatible with ABB AC500 and AC500-eCo PLC systems
- Suitable for central and decentralized I/O expansion
- Removable terminal block simplifies wiring and maintenance.
Typical Applications
- Industrial automation systems
- PLC control panels
- Machine control and sequencing
- Contactor and relay switching
- Solenoid valve control
- Alarm and indication circuits
- Pumps and motor auxiliary controls
- Conveyor and material-handling systems
- Building automation
- Process-control systems
- Marine auxiliary machinery automation
- Lighting and signaling control
