Allen-Bradley 1747-SN - Page 70

4–25Scanner Configuration and Programming
Publication 17476.6 - July 1996
0
RIO Rack 0
Starting Group
0246
RIO Rack 1
Starting Group
0246
RIO Rack 2
Starting Group
0246
RIO Rack 3
Starting Group
0246
0123456789101112131415
M1 File
Primary Logical Device Address, Word 8 M1:e.8
Primary Logical Image Size, Word 9 M1:e.9
Primary Active Device Status, Word 10 M1:e.10
1 100100001000100
101111101100111
1001100001000000
A 0 indicates that the device is
inhibited, not responding to
communications, or configured to
an incorrect logical rack size.
M1 (Status) File - W ord 10
Bit Number (decimal)
A 1 indicates that the configured
device is active.
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: When a primary device is inhibited, its complementary
device is also inhibited. A complementary device
cannot be exclusively inhibited.
0
RIO Rack 8
Starting Group
0246
RIO Rack 9
Starting Group
0246
RIO Rack 10
Starting Group
0246
RIO Rack 11
Starting Group
0246
0123456789101112131415
M1 File
Complementary Logical Device Address, Word 3 M1:e.3
Complementary Logical Image Size, Word 4 M1:e.4
Complementary Active Device Status, Word 5 M1:e.5
1 100100001000100
101111101100111
1001100001000000
A 0 indicates that the device is
inhibited, not responding to
communications, or configured to
an incorrect logical rack size.
M1 (Status) File - W ord 5
Bit Number (decimal)
A 1 indicates that the configured
device is active.