MSA SUPREMA Touch, Инструкция по установке и обслуживанию, Страница: 37 / 309

SUPREMATouch 36
Operation of the System
MSA
US
Al. 1-4 [1st-4th Alarm]
Field type: Check box
In this field select the alarms that will cause the selected relay output to trigger for the input shown
in the “Chan.” column.
Fail
Field type: Check box
If this condition is set, the selected relay output is switched when an error [fault] occurs for the
input displayed in the “Chan.” column.
Inhibit
Field type: Check box
If this condition is set, the selected relay output is switched when the input displayed in the “Chan.”
column is inhibited.
Voting [Alarm Logic]
Field type: Integer
The value entered in this field applies to the configuration conditions described above. Optional
status combinations [alarm, fail, and inhibit] can be formed when the selected relay output is con-
figured. The number value selected in this field determines how many of the conditions configured
in the control boxes must be met for the selected relay output to be switched. The number of con-
ditions entered in the check boxes is displayed in the field beside the voting to be configured.
The following types of links can be formed in this manner:
Single link: [1-out-of-1]:
Exactly one condition is set, and the value of 1 is entered as the voting.
“OR” link: [1-out-of-m]
Multiple conditions are set, and the value of 1 is entered as the voting, i.e., if any one or more of
the set conditions are met, the relay output will be switched. Parameters for a global alarm or com-
mon alarms can be set in this manner.
“AND” link: [m-out-of-m]
The value entered for the voting corresponds to the number of set conditions, i.e. all of the set
conditions must be met for the relay output to be switched.
Voting link: [n-out-of-m]
If ‘m’ conditions are set, and the value of ‘n’ is entered as the voting, then the selected relay output
will only be switched if ‘n’ out of the ‘m’ conditions are met.