Hardware manual PCD1.M2220-C15 │ Document 27-640 – Version ENG03 │ 2020-03-25
Saia-Burgess Controls AG
Introduction
Guidance
2-6
2
Watchdog relay address = “O 255”
The output address O 255 is reserved for the watchdog relay. The changeover contact
of the relay is on connector X18.
The watchdog relay can use an alternative and the normal relay.
Further details are included in chapter 3.9 and 3.10 Watchdog.
Plug-in input/output modules
The IO module slots are designated with Slot 0 and Slot 1 on the device. Slot will
henceforth be used as a term in this manual.