A.4.8
Watchdog module
Address space for Watchdog module
(%[
$%[
3,4
,QSXWE\WH
$VVLJQDEOHWRJJOLQJLQSXWELWJUHHQ/('
2XWSXWE\WH
3,,
Figure A-20
PIQ and PII for the Watchdog module
A.5
Lightning and overvoltage protection
A.5.1
Overview
Introduction
One of the most common causes of failure is overvoltage caused by:
● Atmospheric or
● Electrostatic discharge
The concepts or measures for protection from overvoltages is based on the lightning protection
zone concept.
Appendix
A.5 Lightning and overvoltage protection
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
355