Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual User Manual
Page 23
Publication 1794-UM064B-EN-P - May 2014
Communicate With Your Module 11
• node address changed — 1 bit
The adapter input status word bit descriptions are shown in
Possible causes for an I/O module fault are:
• transmission errors on the FLEX I/O backplane
• a failed module
• a module removed from its terminal base
• an incorrect module inserted in a slot position
• an empty slot
The node address changed bit is set when the node address switch setting has
been changed since power up. The new node address does not take effect until
the adapter has been powered down and then powered back up. Until this power
cycling occurs, the node address switches will not match the actual node address.
Input Status Word Bits
Bit Description
Bit
Explanation
I/O Module Fault
8
This bit is set (1) when an error is detected in slot position 1.
9
This bit is set (1) when an error is detected in slot position 2.
10
This bit is set (1) when an error is detected in slot position 3.
11
This bit is set (1) when an error is detected in slot position 4.
12
This bit is set (1) when an error is detected in slot position 5.
13
This bit is set (1) when an error is detected in slot position 6.
14
This bit is set (1) when an error is detected in slot position 7.
15
This bit is set (1) when an error is detected in slot position 8.
Reserved
1…7
Reserved
Node Address
changed
0
This bit is set (1) when the node address switch setting has been
changed since power up.
I/O Module Fault Bits
Reserved
Node Address Changed Bit
Bit:
15
0
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
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