Rockwell Automation 1734-IK Encoder/Counter Modules User Manual - Manual (Page 31)

Publication 1734-UM006B-EN-P - August 2005
Install the Module 2-11
Assumes a 50% duty cycle signal.
Filter Selection
07 06 05 04 03 02 01 00
0 ZF BF AF FS
0 0 0 0 No Filter
0 0 0 1 50kHz (10 µs + 0µs/-1.6µs)
0 0 1 0 5kHz (100 µs + 0µs/-13.2µs)
0 1 0 0 500Hz (1.0ms + 0 µs/-125µs)
1 0 0 0 50Hz (10ms + 0ms/-1.25ms)
0 A input not filtered
1 A input filtered
0 B input not filtered
1 B input filtered
0 Z input not filtered
1 Z input filtered
Scalar Selection
07 06 05 04 03 02 01 00 Scalar 1
0 0 0 0 0 0 0 1 Z - F
min
= 0.149Hz
0 0 0 0 0 0 1 0 Z/2 - F
min
= 0.298Hz
0 0 0 0 0 1 0 0 Z/4 - F
min
= 0.596Hz
0 0 0 0 1 0 0 0 Z/8 - F
min
= 1.192Hz
0 0 0 1 0 0 0 0 Z/16 - F
min
= 2.384Hz
0 0 1 0 0 0 0 0 Z/32 - F
min
= 4.768Hz
0 1 0 0 0 0 0 0 Z/64 - F
min
= 9.537Hz
1 0 0 0 0 0 0 0 Z/128 - F
min
= 19.073Hz
1 Where F
min
indicates the frequency at which the zero frequency detect is asserted
due to counter overflow.