B3 or B2/Coolguard, com- and boot-error indication v.2

In this example we want to create the following scenario:

• CH1 shall control a green lamp (on when all is ok)

• CH2 shall control a yellow lamp (alarm)

• Communication/Network failure shall be indicated on CH2 (yellow)

Operation mode

To achieve this the URL(s) must be created in the server (B2/Coolguard) or the relevant alarm groups connected to their alarm/warning events (B3). Alarms must be directed to CH2.

Depending on the monitoring system type correct operation mode must be selected as described in Operation modes.

Logic channels configuration

In the config file, the following must be set:

TURN_ON_CH2_IF_CONNECTION_FAILS=1
INVERT_CH1=1 
INVERT_CH2=1

We want to set CH1 as power output active when there is no alarms so it must be set to PS as there is already a logic negation in this channel. For CH2, to compensate the software logic negation created, it is necessary to add hardware negation by changing jumpers CH2 to NPS as described in Jumper settings for PS and NPS modes.

Now, with logic negation in CH1 and two negations in CH2, the box will signal alarms on CH2.

CH1 will be active for no alarms.

Both CH1 and CH2 will be active while CCG1018 boots, or fails to boot.

CH2 will be active in case of no contact with the server.