User guide

Configuration CP371
Page 4 - 4 © 2002 PEP Modular Computers GmbH ID 23762, Rev. 02
4.2.3 Differential Input Signals
Signals of this type are required to have connections to plus and minus. Analog ground is a
function of the input signal and is connected as required. Refer to the figure below for this type
of connection.
Figure 4-2: Differential Input Configuration
4.2.4 Current Input Signals
Signals of this type are required to be connected: plus to plus; minus to I. In addition the minus
pole must be connected externally to minus of the CON2 connector. Refer to the figure below
for this type of connection.
Figure 4-3: Current Input Configuration
V
+ +
I
•
analog ground
CON 2
CP371
pin 21 or 42
pin 41
pin 20
pin 62
Example for
channel 0
NC
V
Example for
channel 0
+ +
I
•
analog ground
CON 2
CP371
pin 41
pin 20
pin 62
not relevant
for current
inputs
•