Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module - Manual (Page 68)

Publication 1746-UM006B-EN-P - August 2005
4-8 Configuration and Programming
M0:e.1 Bit 12 - Function Control (Dynamic)
This bit enables and disables the counter function.
Static parameters can be changed when the Function Control Bit
equals 0. Module operation will be altered upon the 0 to 1 transition
of the Function Control bit.
When the Function Control bit changes from 1 to 0 the following
occurs:
1. All outputs under module control are turned off (excluding
outputs under user program control).
2. The pulse and rate counters are cleared and held at zero.
3. The following data file fields are cleared:
•
Accumulated Count
•
Rate Period Count, Rate Measurement
•
Output Status
•
Ranges Active
4. The Pulse Counter State field identifies the stopped condition.
5. Configuration errors are cleared.
Function Control bit Function
0 Disable counter (except user program controlled outputs)
1 Enable counter
IMPORTANT
The Function Control Bit must always be controlled
by rungs in the ladder logic. Do not set the Function
Control bit to 1 until all of your configured
parameters are transferred. Never save the program
with the Function Control bit set.
enable module
(L)
M0:e.1
12
] [
Enable
(U)
M0:e.1
12
disable module
] [
Disable