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NJI-669(X)
Available combination of products
Be sure to use basic units and programming software with software version as follows.
Basic units and programming software with old version do not support OBV-AIG / AIOG / RTD.
Series name
Product name
Software version
MICRO-EHV+
Basic units
Ver.3.5.3.44 or later
programming software HX-CODESYS
V3.5 SP8 Patch 4 or later *1
*1 In the case of using these products, the XML file for these products is required for HX-CODESYS. This file will be
included in HX-CODESYS V3.5 SP13 Patch2. If this file isn't installed in HX-CODESYS
, contact your local supplier
for the XML file.
Caution for wiring
(1) Shield
Since analog signal is very sensitive, be sure to use shielded cable in order to protect from noise, and route the cable
apart from other power/signal cables.
Be sure to ground the shield at one end basically. But grounding at both ends or no grounding can be more effective
depending on system environment.
[OBV-AIG / AIOG]
Grounding at the one end
IN1+ to IN4+
OUT1+ / 2+
Sensor
or
Converter
Shielded
Shielded cable
(Twisted cable)
Analog I/O
Option board
IN1- to IN4-
OUT1- / 2-
[OBV-RTD (3-wire)]
1A / 3A
1b / 3b
RTD
(3-wire)
Shielded cable
(Twisted cable)
RTD Input
Option board
1B / 3B
Grounding at the one end
Shielded
[OBV-RTD (2-wire)]
Grounding at the one end
1A to 4A
1B to 4B
RTD
(2-wire)
Shielded
Shielded cable
(Twisted cable)
RTD Input
Option board
*RTD (3-wire) is recommended for OBV-RTD. Because measured value with RTD (2-wire) includes ohmic value of cable
as error, it is not suitable for measurement required accuracy. Please be in particular careful when the length of the
cable is long.
(2) Short of analog output (OBV-AIOG)
Analog outputs must not be short-circuit. Otherwise it causes malfunction.
