Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 82)

82 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013
Chapter 4 Module Configuration, Output, and Input Data
Configuration Flags
Operational Mode (Ctr n Config.OperationalMode_0 through
Ctr n Config.OperationalMode_2)
These bits apply to Counters 0 and 1 only.
This value determines how the A
0 or A1 and B0 or B1 inputs are decoded when
assigned to counter 0 or counter 1.
Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
15 Counter 0 Configuration Flags Not used Linear Not
used Storage mode Not used Operational mode
25 Counter 1 Configuration Flags Not used Linear Not
used Storage mode Not used Operational mode
35 Counter 2 Configuration Flags Not used Linear Not used
45 Counter 3 Configuration Flags Not used Linear Not used
Set bit For function
CtrnConfig.OperationalMode_2 CtrnConfig.OperationalMode_1 CtrnConfig.OperationalMode_0
0 0 0 Pulse internal direction
0 0 1 Pulse external direction
1 0 0 Quadrature encoder X1
1 0 1 Quadrature encoder X2
1 1 0 Quadrature encoder X4
0 1 0 Up/Down Pulses
0 1 1 reserved
1 1 1 reserved
TIP The Ctr1Config.OperationalMode bits are reserved if the Number of
Counters equals 1. Attempting to set reserved bits will result in a
configuration error.
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.