Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-13
and output image remain unassigned to any slot because there is no
slot 4 in the chassis. Due to slot pairing, slot 3 can use the extra image
space.
Because the specialty I/O mode chosen is discrete mode and the
1747-ASB module is configured for 2-slot addressing, all specialty
modules having one word or less of input and output image are
discretely mapped.
Slot 1 contains an 8-point output module, Catalog Number 1746-OA8,
that uses the output image assigned to slot 1. The input image
assigned to slot 1 is unused. Slot 2 contains a combination module,
Catalog Number 1746-IO12 that uses the input and output byte
assigned to slot 2.
Because there is no slot 4, the image assigned to slot 4 can be used by
slot 3. A 16-point input module, Catalog Number 1746-IA16 is installed
in slot 3, using the input images assigned to slots 3 and 4. The output
image for slots 3 and 4 is not used.
RIO Address Label Examples
Due to the 1747-ASB module's addressing modes and RIO link
operation, the I/O modules controlled by the 1747-ASB module are
addressed by the SLC processor based on the slot location of the SN
and the word that the I/O module uses in the SN image. A label kit is
included with each 1747-ASB module to assist you in addressing I/O
modules.
Logical
Rack 0
I:3.0
I:3.1
I:3.2
I:3.3
I:3.4
I:3.5
I:3.6
I:3.7
I:3.8
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
1747-ASB
Module 2
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
IO12
IA16
Logical
Rack 0
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
O:3.8
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
1747-ASB
Module 2
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
IO12
OA8
IA16
Bit Number (Decimal)
07815
SLC Processor Input Image
Bit Number (Decimal)
07815
SLC Processor Output Image
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