Siemens SIMATIC ET 200S Manual page 184

Commissioning and Diagnostics
6.6.9 Interrupts
Definition
The interrupt section of the slave diagnosis provides information on the interrupt
type and the cause that led to the triggering of the interrupt. The interrupt section
consists of a maximum of 48 bytes.
Position in the diagnostic frame
The interrupt section comes after the channel-specific diagnosis (only in the case
of the IM151-1 HIGH FEATURE in DPV1 operation)
Example: If there are 3 channel-specific diagnoses, the interrupt section begins as
of byte 44.
Data records
The diagnostic data of a module can be up to 44 bytes in length and is located in
data records 0 and 1:
• Data record 0 contains 4 bytes of diagnostic data describing the current status
of a programmable logic controller. Data record 0 (DS0) is part of the header
information of OB82 (local data bytes 8 to 11).
• Data record 1 contains the 4 bytes of diagnostic data that is also contained in
data record 0 and, in addition, up to 40 bytes of module-specific diagnostic
data.
You can read out data records 0 and 1 (DS0 and DS1) by means of SFC59
"RD_REC".
Contents
The contents of the interrupt function depend on the interrupt type:
• In the case of diagnostic interrupts, diagnostic data record 1 (44 bytes) is sent
as the interrupt status information (as of byte x+4).
• In the case of hardware interrupts, the interrupt status information is 4 bytes in
length.
• In the case of insert/remove-module interrupts, the interrupt information is 5
bytes in length.
6-50
ET 200S Distributed I/O System
EWA-4NEB780602402-09