Safety Integrated - Industry - Siemens

Ex. No.
9 FB "F_PRG" (FB 1, DB 1)
Network 1
This network is assigned to group 1 with motor M1.
FB "Safety_PRG" (FB1, DB1) first calls FB "F_FDBACK" (FB216,
DB216). FB 216 is a certified block from the Distributed Safety
library; this block is available from version 5.3.
"ACK_M1"
"ACK_ALL"
#N1
N
#N2
N
"ESTP1"
"ESTP_ALL"
If the emergency stop for group 1 (ESTP1) or the emergency
stop button (ESTP_ALL) applying to all groups is pressed, then
ON="0" which makes Q="0". With Q="0" the contactors K1 and
K2 drop out (actual parameter M1).
For a start (Q="1") it is required that readback input FEEDBACK
= 1 and no readback error must be stored. A readback error ER-
ROR = 1 is detected if the signal state of the readback input
FEEDBACK (to output Q) does not follow the signal state of the
input ON within the maximum tolerable readback FDB_TIME
time.
The status of the flip-flop is stored in the static variable #EN1
and read as switch-on condition in OB 1.
290 Functional Example No. AS-FE-I-009-V10-EN
>=1
>=1
#EN1
SR
S
R Q
"COND1_F"
"ACK_M1"
"ACK_ALL"
&
>=1
"K12_HELP"
"F00016_
4_F_DO_
DC24V_
2A".QBAD
"F_
GLODB".
VKE1
T#100MS
EN
ON
FEEDBACK
QBAD_FI0
ACK_NEC
ACK
FDB_TIME
"INSTANZ_
FB216_1"
"F_FDBACK"
ERROR
ACK_REQ
DIAG
To ensure that no readback error is detected and that no acknowledgement
is required in a passivation of the failsafe I/O
modules controlled by output Q you have to supply the input
QBAD_FIO with the variable QBAD of the corresponding failsafe
I/O module DB.
F_GLOBDB.VKE1 applies a "1" signal at the input ACK_NEC.
This requires acknowledgement at the input ACK in case of an
error (ERROR="1").
Note
The F-Global-DB (F_GLOBDB) provides the variables
“VKE0“ or “VKE1“. This can be used in the safety program
for supplying parameters at block calls if the Boolean
constants "0" and "1" are required.
Q
EN0
"M1"
#ERROR1
#ACK_REQ1
...
G_FB_XX_174