The ABB 07DO90-S (GJR5250800R0202) functions as a ruggedized distributed digital output block optimized for the CS31 safety-bus infrastructure. It converts networked commands into physical actuation signals through eight short-circuit proof paths. This intelligent node ensures deterministic signal execution and continuous background self-diagnostics across critical remote control subracks.
Technical Specifications
Brand: ABB
Series: Advant Controller 31 / AC31-S
Model Designation: 07DO90-S
Order Reference: GJR5250800R0202
Fieldbus Protocol: CS31 safety-bus slave profile via RS-485 serial communication
Channel Configuration: 8 independent digital outputs
Operating Voltage: 24 V DC with a permissible functional range from 19.2 V DC to 30 V DC
Output Rating: 24 V DC nominal output voltage
Current Capacity: 0.5 A current load limit per independent channel
Ingress Protection: IP20 standard touch-proof rating
Maximum Altitude: 2000 meters operational elevation boundary
Terminal Capacity: Accepts conductor cross-sections from 0.08 mm2 up to 1.5 mm2
Operating Temperature: 0 to +55 degrees Celsius thermal window
Storage Temperature: -25 to +75 degrees Celsius limits
Width: 120 mm
Height: 140 mm
Depth: 85 mm
Net Weight: 0.7 kg
Industrial Application Scenarios
This distributed slave module is utilized within remote terminal racks to supervise critical industrial interlock networks, emergency switching valves, and discrete machinery status loops by relaying safe digital outputs to heavy field equipment while reporting channel diagnostics back to a master PLC over a noise-immune CS31 network path.
