Instruction Manual

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 79
Module Configuration, Output, and Input Data Chapter 4
Counter Minimum Count (CtrnMinCount)
This is the minimum count value allowed for counter (n). The count value
cannot fall below this value. This value must be less than CtrnMaxCount or a
configuration error occurs. Allowable values are from -2,147,483,648 to
CtrnMaxCount - 1.
The default value is -2,147,483,648 decimal for counters 0 and 1. The default
value is 0 for counters 2 and 3.
Counter Preset (CtrnPreset)
This value can be used to change the current count value of countern on certain
gate (Zn) events and when CtrnSoftPreset is used.
CtrnPreset must be greater than or equal to CtrnMinCount and less than
CtrnMaxCount. The default value is zero.
Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
8 Counter 0 Minimum Count Ctr0MinCount
9
18 Counter 1 Minimum Count Ctr1MinCount
19
28 Counter 2 Minimum Count Ctr2MinCount
29
38 Counter 3 Minimum Count Ctr3MinCount
39
IMPORTANT
Do not change this value while the counter is enabled. Attempting to do
so will result in a BadModConfigUpdate error. See page 120 for a list of
prohibited settings.
Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
10 Counter 0 Preset Ctr0Preset
11
20 Counter 1 Preset Ctr1Preset
21
30 Counter 2 Preset Ctr2Preset
31
40 Counter 3 Preset Ctr3Preset
41