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4.4.5 Coupling diagnostics
LEDs
The user can use the 3 LEDs on the front of the SLB module to analyze
the operating status.
Operating display
Table 4-7
Fault display
Table 4-8
Fault output
The fault statuses are output coded at the outputs YF of the appropriate
SIMOLINK blocks.
Only the last fault event is displayed.
NOTE
Value
Diagnostics information
F:
Fault cause
R:
System response
A:
Remedy
2
F:
TAD input is incorrectly connected (e.g. HW address of CS8+SLB module)
R:
No telegram data transfer
A:
Use symbolic hardware assignment of the EXM 448-1 or ITSL module
3
F:
Incorrect module or SLB module not inserted or defective hardware
R:
No telegram data transfer
A:
Use or replace SLB module
F:
SLB module is already being used by another central block @SL,
4
configured twice
R:
No telegram data transfer
A:
Only use one FB @SL for each SIMOLINK ring
Application Module FM 458 - User Manual
6DD1904-0AE0
Edition 12.2001
LED
Status
Diagnostics information
green
flashing
Error-free net data transfer via SIMOLINK
red
flashing
SLB module in operation
yellow flashing
Data transfer with the information processor FM458 or
PMx is OK
Operating display, SLB module
LED
Status
Diagnostics information
green
dark/
No net data transfer via SIMOLINK:
bright
Bus cable not connected or defective, poor fiber-optic
cable transition, send power (launch power) too low
red
dark/
SLB module power supply failed
bright
Replace the SLB module or power supply through
FM458 and check PMx
yellow dark/
No data transfer with the automation processor FM458
bright
or PMx, bus cable not connected or defective, poor
fiber-optic cable transition, send power (launch power)
too low, replace SLB module or automation processor
FM458 and PMx
Fault display, SLB module
Configuring
4-29
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