1747-6.22, Backup Scanner User Manual

5-74 Scanner Configuration and Programming
M0 File - Remote
Output Reset Control
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
G File
Publication 1747-6.22
Bit Number (decimal)
Device Address, Word 1
MO (Control) File
Bit Number (decimal)
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 Words 24 through 27 - use these words to command a logical
device to reset all of its outputs when the SLC processor leaves the
Run mode and enters the Test, Program, or Fault mode (regardless of
the device’s Hold Last State setting).
Resetting the bit (corresponding to the starting address of a device) to
0 allows the Hold Last State switch on the logical device to determine
output operation when the SLC processor leaves the Run mode.
Setting the bit to 1 commands all outputs off (regardless of the
device’s Hold Last State setting).
Only the device’s logical starting address bit matters. Setting other
bits has no effect. Bits 0 - 3 correspond to I/O group locations within
logical racks 0, 1, 2, and 3.
Default: When the processor enters Run or Test mode, the scanner
sets the starting address bit of each device configured in the G file to
1.
ATTENTION: The use of the device’s Hold Last State
switch can result in its outputs remaining energized
! when not under control of the SLC processor. Only
experienced SLC programmers should use this
function.
MO (Control) File Words 24 through 27
Not Defined
15
x
x
x
x
14
x
x
x
x
13
x
x
x
x
12
x
11
x
Example of Remote Output Reset Control
10
x
9
x
8
x
7
x
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.
RIO Logical Rack 3
Starting Group
6
0
15
x
x
x
x
4
0
14
x
x
x
x
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
2
1
13
x
x
x
x
0
0
12
x
x
x
x
0
RIO Logical Rack 2
Starting Group
6
11
x
x
x
x
4
0
10
x
x
x
x
2
1
9
x
x
x
x
0
0
8
x
x
x
x
x
x
x
x
x
x
x
x
x
6
x
x
x
x
x
x
x
5
x
x
x
x
x
x
x
RIO Logical Rack 1
Starting Group
e = slot number of the SLC rack containing the scanner
x = not used/defined
6
0
7
x
4
0
6
x
2
0
5
x
4
0
1
4
x
x
x
x
x
x
x
x
6
6
3
3
1
0
0
0
1
0
0
0
Starting Group
4
4
2
2
0
0
0
0
0
0
0
0
2
2
1
1
0
0
1
1
0
0
1
1
RIO Logical Rack 0
Starting Group
0
1 0 0 1
0
0
0
1
1
0
0
1
1
0
0
M0 File
M0:e.24
M0:e.25
M0:e.26
M0:e.27
M0 File
M0:e.24
M0:e.25
M0:e.26
M0:e.27