SMC Networks EX245-FPS1 User Manual

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No.EX##-OMY0004
Cross circuit detection
If all inputs are parameterized without cross circuit detection, a DC voltage can be sourced at the clock
outputs without clock pulses. As soon as cross –circuit detection has been parameterized for at least one
input pair, pulses are output at clock outputs UT1 and UT2.
For inputs that are parameterized with cross –circuit detection, the default assignment is as follows:
Inputs for channel 1 (IN0 - IN3) are assigned to clock output UT1.
Inputs for channel 2 (IN4 - IN7) are assigned to clock output UT2.
Other assignments are also possible.
Information on error detection according to clocking: see Section 3.3.5 “Clock outputs UT1 and UT2”.
3.3.7. Connection options for sensors depending on the parameterization
Sensors that meet various safety requirements depending on the parameterization can be connected to
the inputs.
The maximum achievable SIL/SILCL/Cat./PL is specified in the table.
In order to meet the safety requirements:
Observe the information in the connection examples: see Section 7.2 “Wiring”.
Observe the requirements of the standards with regard to the external wiring and the sensors to be
used to achieve a SIL/SILCL/Cat./PL.
Table 3-1 Maximum achievable SIL/SILCL/Cat./PL
Input
Connection to the F
connectors
Single-channel sensor or
redundant sensor
Two-channel redundant controlling device/sensor
Input signal
-
-
-
Equivalent
Non-equivalent
Cross-circuit detection
With
Without
With
Without
With
Without
Sensor: Contact type
Yes
Yes
-
Yes
Yes
-
Yes
Yes
Sensor: OSSD output type
No
-
Yes
No
-
Yes
No
No
Achievable safety
requirement
SIL
2
2
2
3
3
3
3
3
SIL CL
2
2
2
3
3
3
3
3
Cat.
3

2
2
4
3
4

4
3
PL
d
d
d
e
d
e
e
d
: Cat. 3 can only be achieved with a redundant sensor (2 series NO contacts) and a connecting cable that meets the fault exclusion
requirement of EN13849-2.
: The category that can be achieved depends on the sensor used.

SMC Networks EX245-FPS1 Specifications

General

Brand	SMC Networks
Model	EX245-FPS1
Category	Control Unit
Language	English