Alarm_D Message Block - Siemens SIMATIC S7-300 CPU Manual

5 Configuration and Settings
5.2 Configuring control messages (PLC alarms)
No. Action
2. Then you declare five variables of data type BOOL as input in the block interface of the
Messages (FB10) block, e.g.
SIG_OUT1
SIG_OUT2
SIG_OUT3
SIG_OUT4
SIG_ERR_PSEDIAG
The signals triggering the messages are read via this input.
3. For each PLC alarm you call an ALARM_D message block in the
Messages (FB10) block.
The ALARM_D message block is located in the Task Card
"Instructions" in pallet "Extended instructions > Alarming".
4. Assign the inputs and outputs of the five ALARM_D message
blocks.
5.2.2

ALARM_D message block

Figure 5-1
block.
Figure 5-1
BOOL
BOOL
WORD
C_ALARM_S
(WORD)
DWORD
ANY
Monitoring of 24 V load circuits
Entry-ID: 61450284, V1.1,
shows the call of the ALARM_D message block in the Messages (FB10)
ALARM_D
EN
SIG
ID
EV_ID
CMP_ID
SD RET_VAL
05/2014
Remarks
see chapter
see chapter
INT
5.2.2
5.2.3
34