4 Functional Mechanisms of the Application
4.5 Message generation with the Messages block (FB10)
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1, 05/2014
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4.5
Message generation with the Messages block (FB10)
The Messages (FB10) block has the task to send 5 PLC alarms to the SIMATIC
Panel.
shows the call of the Messages (FB10) block in the user program of the
S7-300/400 CPU. The Messages (FB10) block is called at cyclic intervals in OB1.
Figure 4-5
FB10 “Messages”
EV_ID2
EV_ID3
C_Alarm_s
C_Alarm_s
DB10 “iDB_Messages”
EN
EV_ID1
EV_ID4
BOOL
C_Alarm_s
C_Alarm_s
EV_ID5
SIG_OUT1
SIG_OUT2
SIG_OUT3
SIG_OUT4
SIG_ERR_PSEDIAG
C_Alarm_s
BOOL
BOOL
BOOL
BOOL
BOOL