Siemens SIMATIC S7-300 CPU Manual page 36

5 Configuration and Settings
5.2 Configuring control messages (PLC alarms)
Table 5-5
Variable
#SIG_OUT1
#SIG_OUT2
#SIG_OUT3
#SIG_OUT4
#SIG_ERR_PSEDIAG
Message number
Assign the data type C_Alarm_s variable to the "EV_ID" input of the ALARM_D
message block previously declared as input in the block interface of the Messages
(FB10) block.
The following table shows which variable is assigned to the "EV_ID" input of the
ALARM_D messages block.
Table 5-6
Variable
EV_ID1
EV_ID2
EV_ID3
EV_ID4
EV_ID5
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1,
Data type
BOOL
BOOL
BOOL
BOOL
BOOL
Data type
C_Alarm_s
C_Alarm_s
C_Alarm_s
C_Alarm_s
C_Alarm_s
05/2014
Description
Variable at input SIG of the first ALARM_D
message block (signal, which triggers the
first PLC alarm)
Variable at input SIG of the second
ALARM_D message block (signal, which
triggers the second PLC alarm)
Variable at input SIG of the third
ALARM_D message block (signal, which
triggers the third PLC alarm)
Variable at input SIG of the fourth
ALARM_D message block (signal, which
triggers the fourth PLC alarm)
Variable at input SIG of the fifth ALARM_D
message block (signal, which triggers the
fifth PLC alarm)
Description
Variable at input EV_ID of the first ALARM_D
message block (message number of the first
PLC alarm)
Variable at input EV_ID of the second
ALARM_D message block (message number of
the second PLC alarm)
Variable at input EV_ID of the third ALARM_D
message block (message number of the third
PLC alarm)
Variable at input EV_ID of the fourth ALARM_D
message block (message number of the fourth
PLC alarm)
Variable at input EV_ID of the fifth ALARM_D
message block (message number of the fifth
PLC alarm)
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