Siemens SIMATIC Compact FF Link - Interrupts

11.3 Interrupts
Definition
The interrupt section provides information on the type of interrupt and the cause leading to the
interrupt being triggered. The interrupt section is only transmitted if there is an interrupt.
The interrupt part consists of a maximum of 63 bytes.
Format of the interrupt section
The interrupt section consists of an interrupt header and the additional interrupt information.
The interrupt header always comprises 4 bytes. The structure of the additional interrupt
information depends on the interrupt type; its length is 59 bytes maximum.
7KHIXUWKHUVWUXFWXUHDQGOHQJWKRIWKHLQWHUUXSWVHFWLRQGHSHQGRQWKHW\SHRILQWHUUXSW
%\WH[
%\WHb[
%\WH[
%\WH[
%LWQR
/HQJWKRIWKHGLDJQRVWLFEORFNLQFOXGLQJE\WH[
PD[E\WHV
&RGHIRUGHYLFHUHODWHGGLDJQRVWLFV
,QWHUUXSWW\SHVHHIROORZLQJWDEOH
6ORWQXPEHUWKDWWULJJHUHGWKHDODUP

%
QRGLIIHUHQWLDWLRQEHWZHHQLQFRPLQJDQGRXWJRLQJ

%
LQFRPLQJLQWHUUXSW

%
RXWJRLQJLQWHUUXSW

%
RXWJRLQJLQWHUUXSWVORWVWLOOIDXOW\
%LWQR
$FNQRZOHGJHPHQWE\XVHUUHTXLUHG
6HTXHQFHQXPEHURIWKHLQWHUUXSW
QQ
+




Figure 11-7 Format of interrupt header
Interrupt type
The Compact FF Link generates interrupts for itself and the FF devices. The following interrupt
types are used:
● Diagnostic interrupt
● Pull / plug interrupt
Alarm, error, and system messages
11.3 Interrupts
Compact FF Link
Operating Instructions, 03/2015, A5E35651552-AA 73