Example of remote output reset control – Rockwell Automation 1747-BSN Backup Scanner Module User Manual
Page 82
Publication 1747-UM010B-EN-P - September 2003
5-20 Configuration and Programming
Example of Remote Output Reset Control
By default the scanner sets the bits in M0:e.24 through M0:e.27 to 1
wherever there are configured devices present. This commands all
devices’ outputs to reset regardless of their Hold Last State switch. The
application program can remove commanded reset of devices by
resetting bits to 0.
Device Reset and Remote Output Reset Considerations
From This Mode
The 1747-BSN Scanner Device Reset words (M0:e.16 to M0:e.19) and
the Remote Output Reset words (M0:e.24 to M0:e.27) operate in
conjunction with each RIO device to determine the state of that RIO
device’s outputs. The output control information that the scanner
sends to the RIO device depends on how you configure these bits.
The RIO device acts on the output control information in accordance
with its functionality and configuration. To fully understand how a
specific device responds to the Device Reset and Remote Output
Reset words, you must determine the operation of the RIO device. To
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
2
4
6
1
0
0
1
x
x
x
x
x
x
x
x
x
x
x
x
1
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x
0
1
0
0
x
x
x
x
x
x
x
x
x
x
x
x
0
1
0
0
x
x
x
x
x
x
x
x
x
x
x
x
e = slot number of the SLC rack containing the scanner x = not used/defined
MO (Control) File Words 24 through 27
Logical Rack 0 Device Inhibit Word 24
Logical Rack 1Device Inhibit Word 25
Logical Rack 2 Device Inhibit Word 26
Logical Rack 3 Device Inhibit Word 27
M0 File
M0:e.24
M0:e.25
M0:e.26
M0:e.27
Not Defined
Starting Group
Bit Number (decimal)
1
0
0
1
x
x
x
x
x
x
x
x
x
x
x
x
1
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x
0
1
0
0
x
x
x
x
x
x
x
x
x
x
x
x
0
1
0
0
x
x
x
x
x
x
x
x
x
x
x
x
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
1
0
0
1
0
0
0
0
1
0
0
0
1
0
0
0
2
4
6
0
2
4
6
0
2
4
6
0
2
4
6
e = slot number of the SLC rack containing the scanner x = not used/defined
G File
MO (Control) File
Logical Rack 0 Device Inhibit Word 24
Logical Rack 1Device Inhibit Word 25
Logical Rack 2 Device Inhibit Word 26
Logical Rack 3 Device Inhibit Word 27
M0 File
M0:e.24
M0:e.25
M0:e.26
M0:e.27
RIO Logical Rack 3
Starting Group
RIO Logical Rack 2
Starting Group
RIO Logical Rack 1
Starting Group
RIO Logical Rack 0
Starting Group
Bit Number (decimal)
Device Address, Word 1