Rockwell Automation 1747-ASB Remote I/O Adapter - Manual (Page 127)

Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-23
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 PLC processor on a logical rack, logical group basis.
A label kit is included with each 1747-ASB module to assist you in
assigning the logical rack and logical group designation for each I/O
module. Refer to chapter 6 for more information regarding these
labels.
Shown below are examples of how the labels are filled out.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1 2 3
ASB 1 1746-NIO4V 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
0 1 2 3
PLC-5/40
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.
Rack Group(s)
BT Discrete
0 – 7 10 – 17 0 – 7 10 – 17 0 – 7 10 – 17
1 G7
0 – 7 10 – 17 0 – 7 10 – 17
The 0–7 and 10–17
boxes are checked
because the module
requires more than
one byte of image.
The module resides
in the PLC-5/40,
Input image (I:),
logical rack 1,
logical group 7.
The discrete box is
checked because
the module’s image
is discretely
mapped in the
PLC-5/40 image.
The 10 –17 box is
checked because this
module requires the
high byte of the
PLC-5/40 image. 0 to 7
must be converted to
10 to 17 to correspond
with the PLC-5/40
image.
The module resides
in the PLC, Output
image (O:), logical
rack 2, logical
group 1.
The discrete box is
checked because the
module’s image is
discretely mapped in
the PLC-5/40 image.
The 10 –17 box is
checked because this
module requires the
high byte of the
PLC-5/40 image.
The module resides
in the PLC, output
image (O:), input
image (I:), logical
rack 2, logical
group 3.
The block transfer
box is checked
because the
module’s image is
block transfer
mapped into the
PLC-5/40 image.
The 0 –7 and 10–17
boxes are not
checked because
only words are
considered when this
module is mapped
discretely. The NI4
has four words that
are discretely
mapped into
PLC-5/40 image.
The module resides
in the PLC-5/40,
Input image (I:),
logical rack 3, logical
groups 0, 1, 2, and 3.
The discrete box is
checked because the
module’s image is
discretely mapped in
the PLC-5/40 image.
The 0 –7 and 10–17
boxes are not checked
because only words
are considered when
this module is mapped
discretely. The NIO4I
has two input and two
output words that are
discretely mapped into
PLC-5/40 image.
The module resides in
the PLC-5/40, Input (I:)
and Output image (O:),
logical rack 3, logical
groups 4 and 5.
The discrete box is
checked because the
module’s image is
discretely mapped in
the PLC-5/40 image.
Remote PLC System
BT Discrete
Remote PLC System
BT Discrete
Remote PLC System
BT Discrete
Remote PLC System
BT Discrete
Remote PLC System
I:
O:
Rack Group(s)
G1 2
I:
O:
Rack Group(s)
2 G3
G3 2
I:
O:
Rack Group(s)
3 G0–G3 I:
O:
Rack Group(s)
3 G4,G5
G4,G5 3
I:
O:
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓ ✓