Fail-Safe Modules
7.5 4/8 F-DI DC24V PROFIsafe Digital Electronic Module
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
133
7.5.10 Technical Specifications of the EM 4/8 F-DI DC24V PROFIsafe
Overview
Technical Specifications
Dimensions and Weight
Dimensions W x H x D (mm) 30 x 81 x 52
Weight Approx. 78 g
Data for Specific Module
Number of inputs
• 1-channel
8, maximum
• 2-channel
4, maximum
Assigned address area
• I/O area for inputs
6 bytes
• I/O area for outputs
4 bytes
Length of cable
• Unshielded *
Max. 200 m
(at input delay 3 ms * and 15 ms)
• Shielded *
Max. 200 m
(at input delay 0.5 ms, 3 ms and 15 ms)
Maximum achievable safety class 1-channel 2-channel
• In accordance with IEC 61508
SIL2 SIL3
• In accordance with EN 954
Category 3 Category 4
• according to ISO 13849
PLd PLe
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
dangerous failure per hour)
< 1.00E-08 < 1.00E-10
• Acceptance ID
FM, cULus, ATEX, CE, C-Tick
Voltages, Currents, Potentials
Rated supply voltage L+ 24 VDC
• 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
No
Number of simultaneously controllable inputs
• Horizontal installation
– Up to 55°C
– Up to 60°C
– Up to 60°C
8 (with 28.8 V)
8 (with 24 V)
6 (with 28.8 V)
• Vertical installation
– Up to 40 °C
8
Electrical isolation
• Between channels and backplane bus
Yes
• Between channels and power supply
No
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