Allen-Bradley 1747-SN User Manual page 70

M1 (Status) File - Word 10
Bit Number (decimal)
Primary Logical Device Address, Word 8
Primary Logical Image Size, Word 9
Primary Active Device Status, Word 10
M1 (Status) File - Word 5
Bit Number (decimal)
Complementary Logical Device Address, Word 3
Complementary Logical Image Size, Word 4
Complementary Active Device Status, Word 5
15 14 13 12 11
RIO Rack 3
Starting Group
6 4 2 0 6
0 0 1 0 0
1 1 1 0 0
0 0 0 0 0
A 0 indicates that the device is
inhibited, not responding to
communications, or configured to
an incorrect logical rack size.
Word 5 – provides active device status for complementary devices.
When a RIO device is communicating with the scanner the bit
corresponding to the device's logical starting group is set to 1.
Devices that are inhibited in the M0 file are represented by a 0.
Unless devices are inhibited, not responding to communications, or
configured to an incorrect logical rack size, this word is identical to
the device configuration (M1:e.3).
Important:
15 14 13 12
RIO Rack 11
Starting Group
6 4 2 0
0 0 1 0
1 1 1 0
0 0 0 0
A 0 indicates that the device is
inhibited, not responding to
communications, or configured to
an incorrect logical rack size.
Scanner Configuration and Programming
10 9 8 7 6 5
RIO Rack 2 RIO Rack 1
Starting Group Starting Group
4 2 0 6 4 2
0 1 0 0 0 0
1 1 0 1 1 1
0 1 0 0 0 0
A 1 indicates that the configured
device is active.
When a primary device is inhibited, its complementary
device is also inhibited. A complementary device
cannot be exclusively inhibited.
11 10 9 8 7 6
RIO Rack 10 RIO Rack 9
Starting Group Starting Group
6 4 2 0 6 4
0 0 1 0 0 0
0 1 1 0 1 1
0 0 1 0 0 0
A 1 indicates that the configured
device is active.
4 3 2 1 0
RIO Rack 0
Starting Group
0 6 4 2 0
M1 File
1 1 0 0 1
M1:e.8
1 1 0 0 1
M1:e.9
1 1 0 0 1
M1:e.10
5 4 3 2 1 0
RIO Rack 8
Starting Group
2 0 6 4 2 0
0 1 1 0 0 1
1 1 1 0 0 1
0 1 1 0 0 1
Publication 1747 6.6 - July 1996
4–25
M1 File
M1:e.3
M1:e.4
M1:e.5