Fail-Safe Electronic Modules
8.2 4 /8 F-DI/4 F-DO DC24V/2A PROFIsafe Digital Electronic Module
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
103
8.2.8
Technical Specifications for the 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic
Module
Overview
Technical Specifications
Dimensions and Weight
Dimensions W x H x D (mm)
90 x 175 x 65.2 including rack
Weight
Approx. 280 g
Module-Specific Specifications
Number of inputs
•
1-channel
Max. 8
•
2-channel
Max. 4
Number of outputs (P/M switching)
4
Assigned address area
•
I/O area for inputs
7 bytes
•
I/O area for outputs
5 bytes
Cable length
•
Unshielded
< 30 m
•
Shielded
< 30 m
Maximum achievable safety class
1-channel
2-channel
•
In accordance with IEC 61508
SIL2
SIL3
•
In accordance with EN 954
Category 3
Category 4
Fail-safe performance characteristics
SIL2
SIL3
•
Low demand mode (average probability of
failure on demand)
< 1.00E-03
< 1.00E-05
•
High demand/continuous mode (probability of
a dangerous failure per hour)
< 1.00E-08
< 1.00E-09
Voltages, Currents, Potentials
Rated supply voltage L+
24 V DC
•
Permissible range
20.4 V to 28.8 V
•
Power loss ride-through of L+
None
•
Power loss ride-through of internal P5
5 ms
•
Reverse polarity protection (1L/1M)
Yes
•
Reverse polarity protection (2L/2M)
No
Number of simultaneously controllable inputs
•
All mounting positions
–
Up to 40 °C
–
Up to 55 °C
8 (for 28.8 V)
8 (for 24.8 V) or 4 (for 28.8 V)
Aggregate current of outputs
•
All mounting positions
–
Up to 40 °C
–
Up to 50 °C
–
Up to 55 °C
6 A
4 A
3 A
