Chapter 1 Introduction
1
– 2
Table 1.2 Related manuals to MICRO-EHV+ series PLC (2/2)
Product name
Model
Type
Application manual number
Analog
EH-A6EAN
AC-powered, Analog input×4, Analog output×2
NJI-424*(X)
Expansion unit
EH-D6EAN
DC-powered, Analog input×4, Analog output×2
RTD
EH-A6ERTD
AC-powered, RTD input×4, Analog output×2
NJI-453*(X)
Expansion unit
EH-D6ERTD
DC-powered, RTD input×4, Analog output×2
EH-A4ERTD
AC-powered, RTD input×4
EH-D4ERTD
DC-powered, RTD input×4
Thermocouple
EH-D6ETC
DC-powered, Thermocouple input×4, Analog output×2
NJI-515*(X)
Expansion unit
EH-D4ETC
DC-powered, Thermocouple input×4
* The last alphabet of the manual No. stands for version starting from blank, A, B, C...
1.3
System overview
MICRO-EHV+ series PLC is all-in-one type programmable controller shown in Figure 1.1.
1] Basic Unit
2] Expansion Unit
2] Expansion Unit
2] Expansion Unit
2] Expansion Unit
3] Expansion cable
3] Expansion cable
3] Expansion cable
3] Expansion cable
Figure 1.1 MICRO-EHV+ series PLC System configuration diagram
No.
Device name
Description of function
1]
Basic Unit
Reads input signals, executes user application program and writes output signals.
2]
Expansion Unit
Unit of external I / O Expansion
3]
Expansion cable
0.1m, 0.5m and 1m cable are available. The maximum cable length 2m in total.
EHV-CODESYS / HX-CODESYS
EHV-CODESYS and HX-CODESYS are IEC61131-3 compliant programming software for MICRO-EHV+ series
PLC. “CODESYS” is a Trademark of the company 3S-Smart Software Solutions GmbH. “EHV-CODESYS” and
“HX-CODESYS” are same tool as “CODESYS” however, Hitachi specific device description files and libraries are
preinstalled.
From application manual revision B, it is assumed to be used HX-CODESYS on descriptions which relate to
programming software.
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