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
Installation and Operating Manual, 08/2008, A5E00103686-07
159
Generally applicable information on diagnostics
For information on diagnostics that affects all fail-safe modules (such as readout of
diagnostic functions; passivation of channels) see this manual in
"Diagnostics" and the
S7 Distributed Safety, Configuration and Programming manual or S7 F/FH Systems,
Configuring and Programming.
See also
7.6.8
Technical specifications of the EM 4 F-DI/3 F-DO DC24V PROFIsafe
Overview
Technical Specifications
Dimensions and Weight
Dimensions W x H x D (mm)
30 x 81 x 52
Weight
Approx. 73 g
Data for Specific Module
Number of inputs
•
2-channel
4, maximum
Number of outputs (P/M switching)
3, maximum
Assigned address area
•
I/O area for inputs
7 bytes
•
I/O area for outputs
5 bytes
Length of cable
•
Unshielded *
30 m, maximum
•
Shielded *
30 m, maximum
Maximum achievable safety class
•
In accordance with IEC 61508
SIL2
•
In accordance with EN 954
Category 3
•
In accordance with ISO 13849
PLd
Fail-safe performance characteristics
SIL2
•
Low demand mode (average probability of
failure on demand)
< 1.00E-04
•
High demand/continuous mode (probability of
a dangerous failure per hour)
< 1.00E-08
•
Acceptance ID
cULus, FM, ATEX, CE, C-Tick
Voltages, Currents, Potentials
Rated supply voltage L+
24 VDC
•
permissible range **
20.4 V to 28.8 V