Siemens SIMATIC TI500 Specifikace stáhnout pdf (Strana 228)

Troubleshooting

9-8

SIMATIC 545/555/575 System Manual

9.3 Troubleshooting CPU Fatal Errors

NOTE: Always execute AUX 29 (PLC Operational Status) and make a list of

the errors before attempting to clear them. If you clear errors before listing

them, it will be impossible to determine what errors occurred and difficult to

identify the problem that caused them.

For 545/555s, a fatal error is indicated when both of the following conditions

are present.

• The CPU GOOD LED is not illuminated.

• The DC POWER GOOD LED on the power supply is illuminated.

For 575s, a fatal error is indicated when all of the following conditions are

present and a power cycle has not been performed since the fault condition.

• The SYF LED is illuminated on the CPU that caused the error.

• The PCG LED is not illuminated on the CPU that caused the error.

• The POWER GOOD LED on the power supply is on.

• In a system with more than one CPU, both the SYF and the PCG LEDs

on each 575 CPU that did not cause the error are off.

• If a secondary 575 CPU’s configuration dipswitches on the

PPX:575–2126 annex card are inconsistent with the configuration

selected for the primary 575 CPU, then the BAT LED on the secondary

flashes, and the SYF LED on the primary is lit. One of two errors is

indicated on the primary:

Error code 323: Board timed out during login.

Error code 11B: Board table did not match.

545/555 CPU Fatal

Error Indications

575 CPU Fatal Error

Indications

1 2 ... 223 224 225 226 227 228 229 230 231 232 233 ... 321 322

Žádné komentáře

Siemens SIMATIC TI500 Specifikace Strana 228