Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-17
RIO Device Configuration
The 1747-ASB modules are configured in the following manner.
The 1771 chassis is configured for 1-slot addressing. The PLC-5/40 is
configured for scanner mode operation at 57.6K baud.
ASB 1
1746–NIO4
1746–OW8
1746–OW16
1746–IA16
1746–OG16
1746–IG16
ASB 2
1746–NI4
1746–NO4I
1746–NIO4I
1746–OW8
1746–OV8
1746–OB16
1746–IB16
1746–OA8
1746–NO4V
1746–OW16
1746–IA16
1746–OV16
1746–IV16
The switch is connected
to input 12.
The bulb is connected
to output 5.
Meter 2 is connected
to output 2.
Meter 1 is connected
to output 0.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1 2 301 23
PLC-5/40
IMPORTANT
All bit numbers in this example are in octal. The
1746 16- and 32-point modules must have their LED
numbers and wiring terminal numbers labeled in
octal. All Series C or later modules include an octal
conversion kit which allows you to convert from
decimal to octal. This kit is also available as a
replacement part through your Rockwell Automation
distributor.
Function 1747-ASB Module 1 1747-ASB Module 2
Starting logical rack number 1 3
Starting logical group number 6 0
Image size (number of logical groups) 8 6
Addressing mode 2-slot 1/2-slot
Specialty I/O mode
Block transfer
(1)
Discrete
Baud rate 57.6K 57.6K
Last chassis Yes Yes
Hold last state Yes No
Processor restart lockout Yes No
Link response Unrestricted Unrestricted
Primary/complementary chassis Complementary Complementary
(1) When block transfer mode is selected, all specialty I/O modules are block transfer mapped. Their data is
exchanged on the RIO link using RIO block transfers.
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