Table of Contents
Advertisement
Error Diagnosis and Elimination
15.3.6 Static Image of I/O Errors
Each failsafe input and output is assigned a bit in one of data words DW 38 to DW 55. The
operating system sets a bit in one of these data words when the associated I/O bit indicates an
error.
Error Bits for Onboard DIs
Bit in
38.15 38.14 38.13 38.12 38.11 38.10 38.9
DW 38
Error on
7
6
channel
Error Bits for Onboard DQs, Interrupt DIs and Onboard Counters
Bit in
39.15 39.14 39.13 39.12 39.11 39.10 39.9
DW 39
Error on
7
6
channel
Error Bits for I/Os in Slots 0 and 1
Bit in
40.15 40.14 40.13 40.12 40.11 40.10 40.9
DW 40
Error on
7
6
channel
Error Bits for I/Os in Slots 2 and 3 to Slots 30 and 31
Data words DW 41 to DW 55 have the same meaning as DW 40, and are used to flag errors in the
external I/Os in slots 2 and 3 to 30 and 31.
Data word DW 41 is assigned to slots 2 and 3, data word DW 42 to slots 4 and 5, data word DW 43
to slots 6 and 7, and so on.
15-6
Onboard DIs (byte 33)
5
4
3
2
Onboard DQs (byte 32)
5
4
3
2
DI (byte 0)
5
4
3
2
38.8
38.7
38.6
38.5
1
0
7
6
39.8
39.7
39.6
39.5
Counters
1
0
3
2
40.8
40.7
40.6
40.5
AI (words 64 to 70)
1
0
3
2
38.4
38.3
38.2
38.1
Onboard DIs (byte 32)
5
4
3
2
39.4
39.3
39.2
39.1
Interrupt DIs (byte 59)
1
0
40.4
40.3
40.2
40.1
DQ (byte 0)
1
0
3
2
EWA 4NEB 812 6210-02
S5-95F
38.0
1
0
39.0
B
A
40.0
1
0
Advertisement
Table of Contents
