Momentum - Status Table Description
(Original Document)
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Overview
The L9_STAT EFB is used to display the status of controller and I/O system for Momentum.
The words in the status table are organized in 2 sections:
Controller Status Words 1 - 11
Word (dec)
Control Expert-IEC bits
Momentum Function
System Word
1
Controller Status:
–
0...3
Not used, always 0
4
Always 0: no battery
5
Always 1
6
Always 0; in stop mode, EF not executed
7
Always 0
8
Always 0
9
Always 0
10
Same as periodic mode: 1 if %SW0 is not equal to 0
11...15
Not used, always 0
2
Hot standby Status: Not used, always 0
–
3
Controller status (more aspects):
–
0...3
Always 0
4...11
Always 0
12
Always 0
13
Period overrun: repetition of %S19
14
Always 0
15
1 = first scan: repetition of %S13
4
Remote I/O Status: Not used (always 0)
–
5
Controller stop state:
–
0
Always 0
1
Presence of at least one forced bit. (%SW108 does not equal 0)
2
Always 0; the CRC may be invalid
3...5
Always 0
6
1 = real time clock detected error (repetition of %S51)
7
Always 0 (use %S11 instead)
8...15
Always 0
6
Not used (always 0)
–
7
Not used (always 0)
–
8
Not used (always 0)
–
9
Not used (always 0)
–
10
Not used (always 0)
–
11
Not used (always 0)
–
I/O Module Health Status Words 12 - 16
The status words 12...14 store health status of the local I/O base and Momentum I/O-drops:
Word (dec)
Control Expert-IEC bits
Momentum Function
System Word
12
Local I/O health status:
–
0...14
Not used, always 0
15
1 = healthy local I/O base (%S119)
13
Momentum device health status on the I/O-bus:
%SW128
0
Momentum I/O-drop at address 1
...
...
15
Momentum I/O-drop at address 16
14
Momentum device health status on the I/O-bus:
%SW129
0
Momentum I/O-drop at address 17
...
...
15
Momentum I/O-drop at address 32
Four conditions must be met before a Momentum device can indicate good health: