5–7RIO Block Transfer
Publication
17476.6 - July 1996
Word
8
Word 9
Word 7
Word 5
Word 6
Word 3
Word 4
Word 1
Word 2
Word 0
Logical
Rack 0
Word 26
Word 27
Word 25
Word 30
Word 28
Word 29
Word 31
Logical
Rack 3
Input Image Output Image
Group
0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Word 24
Word 23
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 7
Logical Slot 0
Logical Slot 1
#
1
# 2 # 3 # 4
These are all analog modules
that are assigned block
transfer operations.
I/O
Image
Adapter
In this example, the remote adapter is configured for 2slot addressing. It is assigned 1/4 logical rack of 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. Note that each module uses both the input and output byte of the logical slot to which it is assigned.
1747SN RIO Scanner's I/O Image Files
#
1
# 1 # 2# 2
# 3# 3 # 4# 4
Word 8
Word 9
Word 7
Word 5
Word 6
Word 3
Word 4
Word 1
Word 2
Word 0
Logical
Rack 0
Word 26
Word 27
Word 25
Word 30
Word 28
Word 29
Word 31
Logical
Rack 3
Input Image Output Image
Group
0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Word 24
Word 23
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 7
Logical Slot 0
Logical Slot 1
#
1
# 2 # 3 # 4
These are discrete modules.
Module #2 is an 8 point output
module and module #4 is an 8
point input module.
I/O
Image
Adapter
In this example, the remote adapter is using 2slot addressing. It is assigned 1/4 logical rack of the scanner's I/O image files starting at
RIO Logical Rack 3, Logical Group 4. The remote adapter controls two analog devices, which are configured for block transfer operations
and two discrete devices (8 point input and 8 point output). Note that each analog module uses both the input and output byte of the
logical slot to which it is assigned, while the discrete modules use only the input or output byte.
1747SN RIO Scanner's I/O Image Files
#
1
# 1 # 2
not used
#
3
# 3# 4
These are analog modules that
are assigned block
transfer operations.
not used
Example
2
Example 3
Mod. Mod. Mod. Mod.
Mod. Mod. Mod. Mod.
Modules' handshake" bytes
map to these I/O image
addresses.
Modules' handshake" bytes
map to these I/O image ad
dresses.
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