ABB S800 User Manual

Software Components Section 2 Product Description
60 3BSE015969-600 A
Digital Output Module
When using redundant DO modules, they both work parallel to each other. They
give the same output, and the small time difference between them, in setting a signal
high or low, does not make a difference.
When one DO module fails it will give output signals set to low. The DO module
that still work will override by setting some signals to high.
Software Components
Fieldbus Communication Interface
The system software of a Fieldbus Communication Interface comprises 
a real-time operating system. The software is installed at delivery.
The upgrades are available for download for the system software for field upgrade.
The cables to connect a standard PC with the FCI are available in the S800 I/O price
list.

ABB S800 Specifications

General

Manufacturer	ABB
Mounting	DIN Rail
Power Supply	24 V DC
Protection Class	IP20
Certifications	CE, UL, ATEX
Number of Channels	Varies depending on module type
Model	S800
Communication Protocols	Profibus DP, Modbus
Redundancy	Yes (depending on module and communication interface)