Rockwell Automation 1746-HSTP1 Stepper Controller Module/ User Manual - Manual (Page 62)

Publication 999-121 - December 1999
Configuration and Programming 5-27
This rung is used to test the loopback to specific tolerances as defined
by the less than and greater than tests. If the test fails the error output,
SLC output 1 is turned on and the unit must be power cycled to reset
it (based on this ladder logic).
LESS THAN
Source A I:1.5
0
Source B 0
Latch error output
O:0
( L ) LES
1
7
I:1
GRT
GREATER THAN
Source A I:1.5
0
Source B N7:10
10
greater than test val = err
less than 0 = err
move
complete
1 = yes