User Manual

Logic Functions - Book 2
PROCESS ALARM BLOCK
8-51
8.6.4 Using the Process Alarm Block
The examples in Figure 8-26 show some typical uses of a Process Alarm block.
HLSTAT
R
A
PA1
Alarm Input
Alarm Active
Discrete Output to
Another Function Block
R
VCI1
VCIM1
Result
R
A
PA2
Alarm Input
Alarm Active
Discrete Output to
Another Function Block
R
DI1
DIM1
Result
EXAMPLE 2 Alarm on a Discrete Process Input
EXAMPLE 1 Alarm on a Floating Point Process Variable
EXAMPLE 3 Alarm on a State Variable
A
PA3
Alarm Input
Alarm Active
Discrete Output to
Another Function Block
STATE
TM1
Timer Disable
State
Timer Reset
High Limit
Figure 8-26. Example Softwiring Drawings for Process Alarm Blocks