Reaction During Faults; Control System - Festo VIFB-02- Series Manual

VIFB1 - 02

Reaction during faults

PLC
manufacturer
in the field bus
During faults in the Festo field bus or
ET100 bus (e.g. by failure of
field bus signal or interruption in field
bus cable) all outputs (valves and
Festo additional outputs) are switched off
or after a specified time delay. The time
Siemens delay depends on the field bus baud
rate set.
Baud rate
Check details in PLC manual
During faults in the SUCONET
(e.g. by failure of field bus signal or
interruption in field bus cable) all
outputs (valves and additional outputs)
are switched off after a time delay.
The time delay depends on the type
Klöckner- of the connected SUCONET master.
Moeller
SUCONET master
PS3 network:
Master PS3 with
up to 3 slaves
SUCONET
network:
with up to
30 slaves
Check details in PLC manual
Fig. 6/14: Reaction of control system during faults
> IFB1-02_BES_V_018474g1_1996-04N - Restored Document - 2011-12-15 <
9604
6. Diagnostic/error treatment

Control system

Reaction of PLC during faults
Time delay
[kBaud]
31.25 2000
62.5 1000
187.5
375
time delay
in the control system
If the control system
switches to STOP, all
outputs (valves and
additional outputs) on the
valve terminal/valve
sensor terminal will be
switched off.
Please note:
[ms]
The solenoid valves
return in this case to the
basic position.
500
250
[ms]
80
300
6-17