Application planning
4.5 Forming potential groups
Distributed I/O system
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BaseUnits with DC I/O modules
BaseUnits BU 20-P12+A0+4B with AC I/O modules
Figure 4-5 Placing the BaseUnits for the AC I/O modules
4.5.3 Forming potential groups with fail-safe modules
Introduction
ET 200SP distributed I/O systems can be configured using fail-safe and non-fail-safe
modules. This chapter provides an example of a mixed configuration comprising fail-safe and
non-fail-safe modules.