Rockwell Automation 1747-ASB Remote I/O Adapter User Manual

Page 100

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Publication 1747-UM006B-EN-P - June 2003

7-4 Troubleshooting

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Illegal logical Rack Address (8 or
above in primary mode or 63 in
complementary mode).

Check the starting logical rack
number (SW1-1,2,3,4,5,6).

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Last Address Exceeded (image
crosses into logical rack 8 in
primary mode or logical rack 63 in
complementary mode)

Check the starting logical rack
number (SW1-1,2,3,4,5,6), starting
logical group number (SW1-7,8),
and image size selection
(SW2-5,6,7,8).

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Last Chassis Not Allowed (when
primary mode is selected)

Check primary/complementary
chassis selection (SW2-3), and the
last chassis selection (SW3-4).

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Invalid Baud Rate

Check baud rate selection
(SW2-1,2).

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I/O Module Placement Error.

(2)

The I/O module in slot# may have
its image overlapping the image
of the I/O module in its paired
slot.

Check the addressing mode
(SW3-5,6) and the I/O module type
installed in this slot.

I/O Module Placement Error.

(2)

A

32 point module may be installed
in slot# and 2-slot addressing is
selected.

Remove the 32 point module or
change the addressing mode
(SW3-5,6).

Module in slot# has only part of
its image assigned to the
1747-ASB image (1/2-slot
addressing and discrete mode
only).

Change 1747-ASB module image
size (SW2-5,6,7,8) or specialty
mode (SW3-9).

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An Unsupported I/O Module

is

installed in slot#.

Remove the unsupported I/O
module.

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DIP Switch Configuration
Mismatch.

(3)

The DIP switch

values that were stored when the
1747-ASB module was powered
up in save mode (SW3-8) do not
match the current settings now
that the 1747-ASB module is in
check mode.

Change the incorrect switch
settings, or change to Save Mode.

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I/O Configuration Mismatch and
Location.

(2)(4)

The I/O module

configuration that was stored
when the 1747-ASB module was
powered up in save mode
(SW3-8) does not match the
configuration now that the
1747-ASB module is in check
mode due to a problem with
slot#.

Correct the I/O module
configuration problem or change
to the Save Mode.

Slot #

Slot #

Code 1

Code 2

and

Code 3

Slot #

and

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