14
Device Description
WAGO-I/O-SYSTEM 750
750-469 2AI Thermocouple
Manual
Version 1.1.0
3
Device Description
The 750-469 (2AI Thermocouple) analog input module and its 750-469/xxx-xxx
variations allow thermocouples be measured in the field. It can also be used to
measure voltages (mV). Depending on the operating mode, the voltage value is
converted to a temperature or is directly send out by the module.
A microprocessor within the module is used for converting and linearizing the
measured voltage value into.
The
WAGO-I/O-
CHECK
commissioning tool can be used to configure the
required operating mode. The I/O module can also be parameterized via
PROFIBUS and PROFINET device description (GSD file).
The parameterization description can be found in the appendix in Section
“Configuration and Parameterization via GSD File with PROFIBUS DP and
PROFINET IO.”
The analog module has 2 input channels allowing the direct connection of 2
thermocouples.
For example, 2 thermocouples can be connected either to the CAGE CLAMP
®
connTC 1 and −TC 1 or to +TC2 and −TC 2.
The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
The field voltage and the system voltage are electrically isolated from each other.
The operational readiness and the trouble-free internal data bus communication of
the channels are indicated via a green function LED.
A red fault LED per channel indicates a wire break or that the signal is outside the
measuring range.
Use a supply module!
Use a supply module for field-side power supply of downstream I/O modules.
The I/O module 750-469 can be used with all fieldbus couplers/controllers of the
WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324
and -327).
With consideration of the power jumper contacts, the individual modules can be
arranged in any combination when configuring the fieldbus node. An arrangement
in groups within the group of potentials is not necessary.