Siemens SIMATIC ET 200SP HA Manual - Halaman 23

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Note

The following LEDs indicate a short-circuit in the backplane bus supply or in the bus connection

supply:

● LED PWR: On

● LED RN, ER and MT: Off

6.2

Interrupts

Diagnostics interrupts

Diagnostic interrupts are used by the IM 155-6 PN HA to signal diagnostic messages as well

as maintenance events, see also appendix Diagnostics messages and maintenance events

(Page 31)

The IM 155-6 PN HA generates a diagnostic interrupt for the following events:

● Faulty 24 V DC power supply

● Module parameter errors or incorrect carrier present in real slot

● Failure of redundancy partner

● Redundancy partners have different hardware/firmware

● Impermissible bus adapter on interface module

● Incorrect bus adapter in redundancy partner

● Defective retentive memory in bus adapter

● Permissible backplane bus size exceeded

● No server module

Diagnostics of I/O modules are forwarded by the IM 155-6 PN HA and depend on the respective

I/O module.

Maintenance messages

The IM 155-6 PN HA generates a maintenance message for the following events:

● Different hardware/firmware in the redundancy partners

● IO redundancy warning

● Redundancy parameter assignment inconsistent

● Retentive memory in carrier module defective

● Defective retentive memory in bus adapter

Interface Module IM 155-6 PN HA (6DL1155-6AU00-0PM0)

Manual, 05/2017, A5E39262148-AA

Displays and interrupts

6.2 Interrupts