Siemens SIMATIC S7-1200 System Manual page 395

Hide thumbs Also See for SIMATIC S7-1200:

Table of Contents

Parameter and type

If you call "RALRM" in an OB whose start event is not an I/O interrupt, the instruction will

provide correspondingly reduced information in its outputs.

Make sure to use different instance DBs when you call "RALRM" in different OBs. If you

evaluate data from an "RALRM" call outside of the associated interrupt OB, use a separate

instance DB per OB start event.

The interface of the "RALRM" instruction is identical to the "RALRM" FB defined in

"PROFIBUS Guideline PROFIBUS Communication and Proxy Function Blocks according to

IEC 61131-3".

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

HW_IO (Word)

Hardware identifier of the I/O module that caused the diagnostic inter-

Note: Refer to the F_ID parameter for an explanation of how to deter-

mine the device ID.

DWord, UInt, UDInt,

Length of the received AINFO interrupt information

DInt, Real, LReal

Task information: Target range for OB start and management infor-

mation. The TINFO length is always 32 bytes.

Interrupt information: Target area for header information and additional

interrupt information. For AINFO, provide a length of at least the MLEN

bytes, if MLEN is greater than 0. The AINFO length is variable.

9.3 Distributed I/O (PROFINET, PROFIBUS, or AS-i)

Extended instructions