System Overview - Hitachi MICRO-EHV+ Applications Manual

Chapter 1 Introduction
Product name Model
Analog EH-A6EAN
Expansion unit EH-D6EAN
RTD EH-A6ERTD
Expansion unit EH-D6ERTD
EH-A4ERTD
EH-D4ERTD
Thermocouple EH-D6ETC
Expansion unit EH-D4ETC
* 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
No. Device name
1] Basic Unit
2] Expansion Unit
3] Expansion cable
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.
Table 1.2 Related manuals to MICRO-EHV+ series PLC (2/2)
AC-powered, Analog input×4, Analog output×2
DC-powered, Analog input×4, Analog output×2
AC-powered, RTD input×4, Analog output×2
DC-powered, RTD input×4, Analog output×2
AC-powered, RTD input×4
DC-powered, RTD input×4
DC-powered, Thermocouple input×4, Analog output×2
DC-powered, Thermocouple input×4
2] Expansion Unit
3] Expansion cable 3] Expansion cable
Figure 1.1 MICRO-EHV+ series PLC System configuration diagram
Reads input signals, executes user application program and writes output signals.
Unit of external I / O Expansion
0.1m, 0.5m and 1m cable are available. The maximum cable length 2m in total.
Type
2] Expansion Unit 2] Expansion Unit
3] Expansion cable
Description of function
1 – 2
Application manual number
NJI-424*(X)
NJI-453*(X)
NJI-515*(X)
2] Expansion Unit
3] Expansion cable