User Manual

Logic Functions - Book 2
TIMER BLOCK
8-56
Timer Initial Value
Timer Low Limit
Reset Value
3
Time
2
1
0
0 30252015105
Timer Value
35
False
True
ON
OFF
Reset Input
Disable
TIMER DIRECTION: DOWN (no wrap)
Operator
Reset Command
True
False
Timer Low
Limit Status
Figure 8-30. Timing Diagram, Down Timer with WRAP = FALSE
8.7.2 Timer Block Parameters
The mnemonics, byte counts and data types for all fields that may be selected for display
and/or be used in making softwiring connections are listed in Table 8-6. The following further
defines the Timer Block configuration parameters.
Block Type
TM This is Timer Block type.
Occurrence
1 to 4096 Distinguishes a particular ‘instance’ of the timer block. The number is
automatically assigned to the block.