Download Siemens SIMATIC TIWAY 1 Technical data

Error Indications. If no error is detected, the ADAPTER GOOD LED will
illuminate at the completion of the diagnostics, and will remain illuminated.
All other LEDs will be extinguished.
If a failure is detected during RESET diagnostics, the ADAPTER GOOD
LED flashes two times each second, and an Error Code is displayed on
LEDs 2 through 6. For a list of these Error Codes, refer to Table 5-3.
The RESET diagnostics will run each time the RESET switch is pressed.
Table 5-3 RESET Diagnostic Tests and Error Codes
LED PATTERN
ERROR
2
3
4
5
6
No Errors
0
0
0
0
0
Diagnostics ROM Error
0
0
0
0
1
RAM Error
0
0
0
1
0
Communications Circuit Error
0
0
1
1
1
PIM Missing or PIM ROM Error
0
1
0
0
0
CPU Error
0
1
0
0
1
–5 V Power Supply Error
0
1
0
1
0
Watchdog Timer Error
0
1
0
1
1
1 = LED Illuminated
If your PIM is not installed and the Adapter passes all its diagnostics. Error
Code 01000 (PIM Not Installed) will be returned.
TIWAY 1 Unilink Adapter Installation
and Operation Manual
Diagnostic Tests
5-15