HITACHI manual microeh overview en

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Programmable controller EH-A40DR

High Performance in a Small Size
12-bit analog input/output (23-point type)
Two built-in potentiometers (except for 10-point type)
Built-in high-speed counter (10/14/23/28- point type :10kHz，64-point type :100kHz)
PWM and pulse train output (MICRO-EH with DC output)
Maximum 176 I/O points (64-point type x 1 28-point expansion unit x 4)
Flash memory for storing user programs - user program is retained without battery
Battery for data memory back-up (23/28/64- point type)
Built-in real-time clock (23/28/64- point type)
Digital filter
Power supply for sensors
Removable terminals for easy set-up (except for 10-point type)
Easy installation by snapping on a DIN rail or screwing onto a panel
Easy-to-see terminal layout indication
Same programming software for utilization of valuable existing user programs
CE， UL， c-UL and C-Tick approvals
RS-232C port standard
RS-422/485 port as standard for 23/28-point type (up to 32 units connectable)
Laser marking for elimination of sticker type nameplates
ABS material for easy recycling
Battery-less operation for waste reduction
Smallest MICRO-EH
EH-D10 􀋔Easily mounted on machines or other
􀉹equipment thanks to its small size (D:47 mm)
􀋔Size: W75 mm x H80 mm x D47 mm
􀉹10 I/O points (Not expandable)
􀋔Max. 3k steps of program memory even with
􀉹10-point type
Standard MICRO-EH
EH-D14/A14 􀋔AC power supply compatible standard type
􀋔Size: W95 mm x H90 mm x D76 mm
􀋔14 I/O points (Max. 126 points with expansion units)
􀋔3k steps of program memory
High-functional MICRO-EH
EH-D23/A23 􀋔2 analog inputs and 1 analog output as standard
􀋔Up to 32 displays can be connected via RS-422/485
serial communication
􀋔Optional battery for data memory back-up
􀋔Real-time clock for event scheduling
􀋔Size: W150 mm x H90 mm x D76 mm
􀋔23 I/O points(Max. 135 points with expansion units)
􀋔3k steps of program memory
User-friendliness
Compatibility with H/EH series PLC
Conformity to Global Standards
Network Compatibility
Environmental Friendliness