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 
105 
7.5  4/8 F-DI DC24V PROFIsafe Digital Electronic Module 
7.5.1  Properties of the 4/8 F-DI 24 VDC PROFIsafe Digital Electronic Module 
Order Number 
6ES7138-4FA04-0AB0 
Properties 
The 4/8 F-DI DC24V PROFIsafe digital electronic module possesses the following 
properties: 
●  8 inputs (SIL2/Category 3/PLd) or 4 inputs (SIL3/Category 3 or Category 4/PLe) 
●  24 VDC rated input voltage 
●  Suitable for switches and 3/4-wire proximity switches (BEROs) 
●  2 short circuit-proof sensor supplies, each one for four inputs 
●  External sensor supply possible 
●  Group fault display (SF; red LED) 
●  Status display for each input (green LED) 
●  one fault display for each sensor supply (1VsF and 2VsF; red LED) 
●  Assignable diagnostics 
Power Modules Suitable for SIL2 or SIL3 
Table 7- 16  EM 4/8 F-DI DC24V PROFIsafe: Power modules for SIL/Category/PL 
Power module  achievable SIL/Category/PL 
Supply through PM-E DC24V, PM-
E DC24..48V/AC24..230V or PM-E 
DC24..48V 
with 1oo1 sensor evaluation (8 F-DI) SIL2/Category 3/PLd 
with 1oo2 sensor evaluation (4 F-DI) SIL3/Category 3/PLe 
Capacitive Crosstalk of Digital Input/Output Signals 
refer to 
"Characteristics of the power module PM-E F pm DC24V PROFIsafe"