3. Installation
page 14
ELC PE22B-PE35B V1.0-05.19-GB
Subject to technical alterations
Pin assignment of PROFIBUS
The PROFIBUS contacts of X3 and X4 are internally connected. According to requirements
apply a terminator in compliance with PROFIBUS-Norm IEC 61158:
Fig. 6:
Termination of PROFIBUS
5V
A
B
390
Ω
390
Ω
220
Ω
Designation
Number
Description
technical
BUS VCC
X3.1
external supply voltage 5V isolated for
PROFIBUS
+5V DC isolated, output for
terminator
BUS B
X3.2
Data line PROFIBUS B
Bus signal B
BUS A
X3.3
Data line PROFIBUS A
Bus signal A
BUS GND
X3.4
GND isolated for PROFIBUS
Shield connection PROFIBUS
BUS VCC
X4.1
external supply voltage 5V isolated for
PROFIBUS
+5V DC isolated, output for
terminator
BUS B
X4.2
Data line PROFIBUS B
Bus signal B
BUS A
X4.3
Data line PROFIBUS A
Bus signal A
BUS GND
X4.4
GND isolated for PROFIBUS
Shield connection PROFIBUS