Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 120)

Publication 1747-UM010B-EN-P - September 2003
7-8 RIO Block Transfer
Example 2
#2 #2 #1 #1
#4 #4 #3 #3
In this example, the remote adapter is configured for 2-slot addressing. It is assigned 1/4-logical rack or
the scanner’s I/O image files starting at RIO Logical Rack 3, Logical Group 4. The remote adapter controls
four analog modules that are configured for block transfer operations. Each module uses both the input
and output byte of the logical slot to which it is assigned.
1747-SN RIO Scanner’s I/O Image Files
Logical
Rack 0
Logical
Rack 3
Input Image Output Image
Logical Slot 0
Logical Slot 1
Modules’ "handshake" bytes map
to these I/O image addresses.
These are all analog
modules that are assigned
block transfer operations.
Adapter
I/O
Image
Mod
#1 Mod.
#2 Mod.
#3 Mod.
#4
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Word 0
Word 1
Word 2
Word 3
Word 4
Word 5
Word 6
Word 7
Word 8
Word 9
Word 23
Word 24
Word 25
Word 26
Word 27
Word 28
Word 29
Word 30
Word 31