172 • I/O modules
Analog Inputs 750-461, (-481)
Modular I/O System
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4.4.1.1.3 2 Channel Input Module for resistance sensors
750-461, (-481)
+R1 +R2
13 14
C
D
B
A
RL1 RL2
S S
-R1 -R2
750-461
+R 2
Data contacts
Function AI 2
RL 2
Function AI 1
+R 1
Error AI 2
Error AI 1
RL 1
Shield
(screen)
Shield
(screen)
-R 2
-R 1
2-conductor 3-conductor
I/O modules and variations
Item-No.:
Description:
Name:
750-461
2 Channel Analog Input PT 100 (RTD)
2AI PT100 (RTD)
750-461/000-002 2 Channel Analog Input Resistance test 10R-1K2
2AI Resistance test
10R-1K2
750-461/000-003 2 Channel Analog Input PT 1000 (RTD)
2AI PT1000 (RTD)
750-461/000-004 2 Channel Analog Input NI 100 (RTD)
2AI NI100 (RTD)
750-461/000-005 2 Channel Analog Input NI 1000 (RTD)
2AI NI1000 (RTD)
750-461/000-007 2 Channel Analog Input Resistance test 10R-5K
2AI Resistance test
10R-5K
750-461/000-200
formerly 750-481
2 Channel Analog Input PT 100 (RTD)
with status information within the data word
2AI PT100 (RTD)
(Siemens)
Technical description
This description is only intended for hardware version X X X X 3 A 0 2 - - - -.
The serial number can be found on the right side of the module.
The described configuration is PT 100. The following description is prelimina-
ry and is applicable only to the factory configuration.
The inputs are connected to +I and -I. The shield is connected to "S". A capa-
citive connection is made automatically when snapped onto the DIN rail.
These I/O modules are not provided with integrated power jumper contacts.
The power supply is made by the data contacts with a DC-DC converter.
The PT100 module can operate with all buscouplers of the
WAGO-I/O-SYSTEM (except for the economy type).