Fail-Safe Modules
7.6 EM 4 F-DI/3 F-DO DC24V PROFIsafe digital electronic module
ET 200S Distributed I/O System - Fail-Safe Modules
142
Installation and Operating Manual, 08/2008, A5E00103686-07
7.6.4
EM 4 F-DI/3 F-DO DC24V PROFIsafe parameters
Parameters in
STEP 7
The table below lists the parameters that can be set for the EM 4 F-DI/3 F-DO DC24V
PROFIsafe.
Table 7- 27 Parameters of the EM 4 F-DI/3 F-DO DC24V PROFIsafe
Parameter
Range
Default
Type of
Parameter
Effective
Range
F-Parameters:
F_destination_address
1 to 1022
is assigned
by
STEP 7
Static
Module
F monitoring time
10 to 10000 ms
150 ms
Static
Module
Module-specific input parameters
Short-circuit test
Cyclic/disabled
Cyclic
Static
Module
Behavior after channel
faults*
Passivate the entire
module/Passivate the
channel
Passivate the
entire module
Static
Module
Channel n, n+4
Activated/deactivated
Activated
Static
Channel
group
Sensor supply
internal/external
internal
Static
Channel
group
Sensor evaluation
1oo2 evaluation
1oo2
evaluation
Static
Channel
group
Type of sensor
interconnection
1-channel
2-channel equivalent;
2-channel, non-
equivalent
2-channel
equivalent
Static
Channel
group
Behavior of discrepancy
Provide last valid value;
provide 0 value
Provide last
valid value
Static
Channel
group
Discrepancy time
10 to 30000 ms
10 ms
Static
Channel
group
Reintegration after
discrepancy error
Zero signal test not
required/Zero signal
test required
Zero signal
test not
required
Static
Channel
group
Module-specific output parameters:
Behavior after channel
faults*
Passivate the entire
module/Passivate the
channel
Passivate the
entire module
Static
Module
DO channel n
Activated/deactivated
Activated
Static
Channel
Readback time
1 to 400 ms
1 ms
Static
Channel
* This setting is only relevant when
S7 Distributed Safety
V5.4 or higher is installed.
Short-circuit test parameter
This parameter can be used to activate short-circuit detection for channels set up for
"internal sensor supply."