Section 2 Operation; Operating Overview; Start-Up Sequence - ABB 800xA Operation

Operating Overview

The operation of Safeguard controllers and implementation of safety applications
described in this section are:
•
•
•
•
•

Start-up Sequence

During start-up of Safeguard controllers, the system software initiates several
safety-related functions:
1.
2.
3.
4.
5.
6.
The start-up progress can be monitored in the Safeguard system status display. For
more information, refer to
3BNP004849-600
Start-up and dual system synchronization
Safeguard system status monitoring
Bypass Management and exception handling (blocking, inhibit)
Calibration of Gas detectors
Signal Filtering
Base system start-up test.
Initialization of process communication.
Start of AMPL-programs exempted from normal safety start up.
Dual start up database synchronization.
Start of AMPL-programs with normal safety start-up.
Start of AMPL-programs with delayed safety start-up.

Section 2 Operation

Safeguard Status Monitoring on page 14.
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