6-23
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
“Module diagnostics” header:
The “module diagnostics” header specifies the scope and contents of the
diagnostics information that follows.
Table 6-19
Meaning of the “Module Diagnostics” Header
Bit
Diagnostics Message
0
1:
1
0:
2
1:
Length of the module diagnostics including header (mo-
3
0:
g
g
g
(
dule diagnostics) = 5 octets.
4
0:
5
0:
6
1:
C d f
d l di
ti
7
0:
Code for module diagnostics.
Note
When a module announces diagnostics mode, up to 150 ms might elapse
from the entry for station diagnostics to the following entry for module dia-
gnostics.
Module diagnostics (slots 0 to 7):
The module diagnostics message names the faulty I/O module.
Table 6-20
Information Content of Module Diagnostics (Slots 0 to 7)
Bit
Diagnostics Message
0
Module in slot “0” faulty.
1
Module in slot “1” faulty.
2
Module in slot “2” faulty.
3
Module in slot “3” faulty.
4
Module in slot “4” faulty.
5
Module in slot “5” faulty.
6
Module in slot “6” faulty.
7
Module in slot “7” faulty.
ET 200U(DP Standard/FMS): Modes, Settings and Comm. Capabilities of IM 318–C