CleaverBrooks ADAC 1000, Operation Manual

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Chapter 3 — Commissioning
3-44 Part No. 750-386
E t h e r n e t c o m m u n i c a t i o n i n t e g r i t y i s d e t e r m i n e d b y a
communication heartbeat signal between the Cleaver Brooks ADAC
PLC and the Building Management System.
DAWB[0].0 is the heartbeat bit FROM the BMS. This bit must
change states in the Cleaver Brooks PLC every 15 seconds or a
communications failure occurs. If communications fail, an alarm
message “Remote Communications Failed” is displayed on the HMI
and the BMS will be unable to write to the Cleaver Brooks PLC.
The Cleaver Brooks PLC sends a heartbeat TO the BMS on bit
DAB1[2].15. Every 30 Seconds this bit will toggle between ON and
OFF.
3.25-PLC Ethernet Configuration
“View Current PLC Ethernet Configuration” shows the current
Ethernet settings as read from the PLC.
PLC Factory IP Address = 192.168.1.150
HMI Factory IP Address = 192.168.1.152
Figure 3-43 Lead Lag order by communications