Considerations when configuring remote i/o, Considerations when configuring remote i/o -12, G file considerations -12 – Rockwell Automation 1747-SN Remote I/O Scanner User Manual
Page 56: G file considerations
Publication 1747-UM013B-EN-P - January 2005
4-12 Scanner Configuration and Programming
Considerations When
Configuring Remote I/O
The following sections contain information that you must understand
before you configure your scanner’s G file.
G File Considerations
• You can only change the RIO configuration by modifying the G
file while offline in your program file. Your application program
cannot access the G file, nor can you access it while online with
your programming device. However, your SLC control program
can dynamically inhibit and uninhibit RIO devices via the M0
file.
• RIO devices larger than 1 logical rack appear as multiple devices
on the RIO link. Refer to the Crossing Logical Rack Boundaries
section below.
Logical Rack 1
1 Group 6
Logical Rack 1 1 Group 7
Logical Rack 9 Group 2
Logical Rack 9 Group 3
Logical Rack 9 Group 0
Logical Rack 9 Group 1
Logical Rack 9 Group 6
Logical Rack 9 Group 4
Logical Rack 9 Group 5
Logical Rack 8 Group 6
Logical Rack 8 Group 7
Logical Rack 8 Group 4
Logical Rack 8 Group 5
Logical Rack 8 Group 2
Logical Rack 8 Group 3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Bit Number (decimal)
SLC Input
File Address
I:e.0
I:e.1
I:e.2
I:e.3
I:e.4
I:e.5
I:e.6
I:e.7
I:e.8
I:e.9
I:e.10
I:e.11
I:e.12
I:e.13
I:e.14
I:e.30
I:e.31
Word 0
Word 1
Word 2
Word 3
Word 4
Word 7
Word 8
Word 9
Word 10
Word 11
Word 12
Word 13
Word 14
Word 5
Word 6
Word 30
Word 31
Logical Rack 8 Group 0
Logical Rack 8 Group 1
Logical Rack 1 1 Group 1
Logical Rack 1
1 Group 2
Logical Rack 10 Group 7
Logical Rack 1
1 Group 0
Logical Rack 1 1 Group 5
Logical Rack 1 1 Group 3
Logical Rack 1
1 Group 4
Logical Rack 10 Group 5
Logical Rack 10 Group 6
Logical Rack 10 Group 3
Logical Rack 10 Group 4
Logical Rack 10 Group 1
Logical Rack 10 Group 2
I:e.15
I:e.16
I:e.17
I:e.18
I:e.19
I:e.20
I:e.21
I:e.22
I:e.23
I:e.24
I:e.25
I:e.26
I:e.27
I:e.28
I:e.29
Word 15
Word 16
Word 17
Word 18
Word 19
Word 22
Word 23
Word 24
Word 25
Word 26
Word 27
Word 28
Word 29
Word 20
Word 21
Logical Rack 9 Group 7
Logical Rack 10 Group 0
Logical
Rack 8
Logical
Rack 9
Logical
Rack 10
Logical
Rack 11
0
8
1
8
2
8
3
8
4
8
5
8
6
8
7
8
10
8
11
8
12
8
13
8
14
8
15
8
16
8
17
8
Bit Number (octal)
e = slot number of the SLC chassis containing the scanner
Device 6
Device 7
Device 8
Device 9
Device 10
= not used