Siemens SIMATIC ET 200SP IM 155-6 DP HF - Structure of interrupts

Interrupts, error messages, diagnostics and system alarms
5.2 Interrupts
Interface module IM 155-6 DP HF (6ES7155-6BA01-0CN0)
Manual, 10/2018, A5E03916550-AD
31
Reading data records
DS0 and DS1 can be read with SFC 59 (RD_REC) or SFB 52 (RDREC). The data length of
DS 1 can be up to 240 bytes. In this case, DS1 includes up to 38 channel error entries.
Note the figures below in this section.
Content
The contents of the interrupt information depend on the interrupt type:
● In the case of diagnostic interrupts, diagnostic data record 1 (up to 58 bytes) is sent as
interrupt status information (starting from byte x+4).
● The length of the interrupt status information for hardware interrupts is 4 bytes.