Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 84)

Publication 1747-UM010B-EN-P - September 2003
5-22 Configuration and Programming
Example 3
When going from Run to Program mode, if both of the appropriate
bits in the Device Reset and Remote Output Reset words are reset to 0
before leaving Run mode, the RIO link device is instructed to decide
whether to hold its last output state or to reset its outputs.
To this mode
Run Test Program
From t
h
is m
ode
Power-up DR = 0
ROR = 1
Default values are set automatically.
Outputs reflect those of the canner
output image.
DR = X
ROR = X
Run ROR = X
DR = 0 Outputs are unchanged.
DR = 1 Outputs are turned off.
DR = 0 In this instance, the last ROR =
0 state switch setting is valid. DR = 0 In this instance, ROR = 0 state
switch setting is valid.
DR = X
ROR = 1 These two combinations
reset device outputs.
DR = 1
ROR = X
DR = X
ROR = 1 These two combinations
reset device outputs.
DR = 1
ROR = X
Test DR = 0
ROR = 1 Default values are set
automatically.
Outputs reflect those of the scanner
output image.
DR = 0 In this instance, the last ROR =
0 state switch setting is valid.
Once these outputs are reset, they
remain reset regardless of the DR and
ROR settings.
DR = X
ROR = 1 These two combinations
reset device outputs.
SR = 1
ROR = X
Outputs remain unchanged.
Program DR = 0
ROR = 1
Default values are set automatically.
Outputs reflect those of the scanner
output image.
DR = 0
ROR = 1
These default values are set
automatically. Outputs are reset,
unless ROR is changed to 0 on the first
scan.
DR = X
ROR = X