Saia-Burgess Controls AG
User Manual Standby System │ Document 27-645 │ Edition ENG 02 │ 2017-04-26
Introduction
Standby System Overview
1-1
1
1 Standby System Overview
1.1 Introduction
The PCD3.M6880 Standby Controllers are for creating redundant automation
solutions, to ensure the uninterrupted operation of systems and processes.
Standby (redundant automation) systems from SBC have the following char-
acteristics:
Based on the modular and robust PCD3 family, using standard modules.
Simple system architecture to reduce costs.
Standby processors with shared Ethernet Remote I/Os
avoids the duplication of the inputs/outputs and the sensors/actuators.
Programmable remote I/Os create intelligent decentralized nodes to provide
additional reliability.
The network uses standard Ethernet components, and can run over a standard
Ethernet TCP/IP network along with other services.
Easy engineering and commissioning, using the PG5 Project Manager to auto-
matically generate the project.
Uninterrupted switching from Standby to Active device.
Standby controllers contain two processors. One processor runs the redundant
program and monitors the active PCD. The second independent processor runs
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