Chapter 1 Introduction
1 – 2
1.3 System
overview
EHV+ series PLC is module type programmable controller shown in Figure 1.1.
1] Power supply module
2] CPU module
3] I/O modules
0
1
2
3
4
5
6
7
8
9
10
7] I/O controller No.1
7] I/O controller No.2
7] I/O controller No.3
7] I/O controller No.4
5] Expansion base unit
6] Expansion cable
5] Expansion base unit
6] Expansion cable
5] Expansion base unit
6] Expansion cable
5] Expansion base unit
4] Basic base unit
1] Power supply module
1] Power supply module
1] Power supply module
1] Power supply module
1] Power supply module
7] I/O controller No.5
5] Expansion base unit
6] Expansion cable
6] Expansion cable
Figure 1.1 EHV+ series System configuration diagram (EHV-CPU1102)
No.
Device name
Description of function
1]
Power supply module
Converts external power to DC5V for CPU and I/O modules through base unit.
2]
CPU module
Reads input signals, executes user application program and writes output signals.
3] I/O
module
Many types of I/O modules are available such as digital input/output modules, analog
input/output modules, high-functional modules and communicate modules.
4]
Basic base unit
All modules are mounted to base unit. Basic and expansion base unit are common.
5]
Expansion base unit
All modules are mounted to base unit. Basic and expansion base unit are common.
6]
Expansion cable
0.5m, 1m and 2m cable are available. The max. cable length 8m in total.
7]
I/O controller
Be sure to use each expansion base unit.
EHV-CoDeSys
EHV-CoDeSys is IEC61131-3 compliant programming software for EHV+ series PLC. “CoDeSys” is a Trademark of
the company 3S-Smart Software Solutions GmbH. “EHV-CoDeSys” is same tool as “CoDeSys” however, Hitachi
specific device description files and libraries are preinstalled.
