Hitachi MICRO EH H Series User manual

- 1 - NJI-540(X)
H Series MICRO-EH
Ethernet Option Board Instruction manual
Thank you for purchasing a Hitachi Programmable Logic Controller.
To operate it safely, please read this instruction manual and all the user manuals carefully. Please be sure to use the latest versions of user manuals and
keep them at hand of end users for future reference.
Caution
1. All rights reserved.
2. The content of this manual may be changed without notice.
3. While efforts have been made on this manual to be accurate,
please contact us if any mistake or unclear part is found.
Warranty period and coverage
The warranty period is within 18 months after manufacturing date
(MFG No) or 12 months after installation.
Examination and repair within the warranty period is covered.
However within the warranty period, the warranty will be void if the
fault is due to;
(1) Incorrect use from instructed in this manual and the
application manual.
(2) Malfunction or failure of external other devices than this
unit.
(3) Attempted repair by unauthorized personnel.
(4) Natural disasters.
The warranty is for the PLC only, any damage caused to third party
equipment by malfunction of the PLC is not covered by the
warranty.
Repair
Any examination or repair after the warranty period is not covered.
A within the warranty period any repair and examination which
results in information showing the fault was caused by any of the
items mentioned above, the repair and examination cost are not
covered. If you have any questions regarding the warranty or repair
cost, please contact your supplier or the local Hitachi Distributor.
(Depending on failure part, repair might be impossible.)
Ordering spare parts and inquiries
Please contact your local suppliers for ordering products/spare parts
or any inquires with providing the following information.
(1) Product name
(2) Manufacturing number (MFG No.)
(3) Details of failure
Reference manual
Read the following application manuals carefully depend on series to
use the PLC safely and properly. Be sure to keep the latest version.
Manual name Manual No.
MICRO-EHAPPLICATION MANUAL NJI-350*(X)
MICRO-EH BASIC UNIT (20-point, 40-point,
64-point type)APPLICATION MANUAL NJI-465*(X)
*: The alphabet between 350 and (X) means a version. The first edition
is a space.And this is modified without notice.
Name Type
APPLICATION MANUALS CDM-PLC
(Also other instruction manuals and application manuals of Hitachi
PLC are included.)
Installation
CAUTION
-Do not attach and detach an option board with power applied to
MICRO-EH. Otherwise, there is a danger of breakdown and/or
malfunction.
(1) Remove the coverA, B, and C from a basic unit.
Ｃ
BC
A
(2) Insert a connector on the back of EH-OBETH into a connector on
a basic unit as shown.
(3) Attached screws fixate an option board to a basic unit.
Screw position is [1] and [2] in EH-OBETH.
[1]
[2]
Attached screws
(4) Attach the coverAand B.
AB
!

- 2 - NJI-540(X)
Installing EH-OBMEM on communication board
(1) After fixing a communication board by screws, insert a connector
on the back of EH-OBMEM into a connector on the front of the
communication board.
EH-OBMEM
(2) Fix EH-OBMEM to the option board by attached tapping screw.
Attached tapping
screw
(3) Attach the coverA.
Features
EH-OBETH is an option board to convert Serial to Ethernet. This
allows to communicate with MICRO-EH over Ethernet network using
H-Protocol.
Since EH-OBETH has 2 logical ports, in total 3 communication lines
are available in MICRO-EH (RS232C + 2 Ethernets)
Serial
(RS-232C)
HMI
PC
HUB
Ethernet
1
2 3
Basic specifications
Item Specifications
Ethernet standard Conforms to IEEE802.3
Transmission modulation
method Baseband
Medium access method CSMA/CD
Protocol TCP/IP, UDP/IP
Transmission speed 10 / 100 Mbps (Auto negotiation)
Max. cable length to HUB 100 (m)
Cable Category 5 UTP or STPcable
Communication specifications
Item Specifications
Communication protocol H-Protocol (task code communication)
Number of connections 2 connections
Connection mode Undesignated IP, Passive
Watchdog timer 1 to 65,535 seconds
Name of each part
Appearance
[3]
[1]
[5]
[5]
LINK (orange)
ACTIVITY (green)
STATUS (red)
[2]
[4]
[1] Connection port
RJ-45 type connector
Connect Category 5 UTPor STP cable.
[2] Status display LED
Each LED displays the status of Ethernet communication
individually.
LINK : On (orange) when connecting by cable to
HUB or communication device.
ACTIVITY : On (green) during communication.
STATUS : Not used
[3] Memory board connector
Connector for a memory board.
[4] Connector for basic unit
Connector to mount on a basic unit (located on the back side).
[5] Mounting hole
Use M3 screw to fix.

- 3 - NJI-540(X)
Setting of communication parameters
Web browser is used to set the communication parameters.
Setting parameter [ ]: Default setting
IP address [192.168.0.1]
Subnet Mask [255.255.255.0]
Gateway address [None]
Protocol [TCP]
Port No. [3004, 3005]
Watchdog Timer [30 sec.]
Baudrate [ 4,800 bps ]
Response wait [ 20 ms]
Station No. [ none ]
Baudrate [ 4,800 bps]
Station No. [ None ]
* These parameters are set by
WRF03D
Communication setting
Be sure to set communication parameters for both EH-OBETH and a
basic unit. Communication parameters of a basic unit are set in special
internal output WRF03D.
b c d e
15
a 12 11 8 7 0 WRF03D
Field Content
a 0 : Setting completed, 1 : Setting change request
b 0 : Transmission control procedure 1
1 : Transmission control procedure 2
c 0 :Without station number, 1 : With station number
d Transmission speed
H0 : 4800bps H1 : 9600bps H2 : 19.2kbps H3 : 38.4kbps
Other than above : 4,800bps
e Station number (Set by BCD)
Ex) Transmission control procedure 1, 38.4kbps, Without station number
WRF03D = H8300
If basic unit complete the setting, setting value is changed as below .
H8300 ÎH0300
In addition, the serial communication on EH-OBETH supports the
“transmission control procedure 1”. Be sure to set transmission control
procedure 1 in a basic unit.
(1) Connect EH-OBETH to PC
Category 5 UDP or
STP cable
LAN Port
HUB
(2) Start web browser on PC and type the URL
(3) Enter user name and account
The following window to login appears. Enter user name and
password.
Default setting
User Name: root (fixed)
Password: (none)
(4) Languagechoice
After logging in, a window to choose language appears.
Choose your language.
(5) Network setting (setting between host and Ethernet port)
Choose “NETWORK” in the menu in the left side on the screen.
Click the OK after entering the required parameters.
i
Type the following URLinto address field.
http://[IPAddress of EH-OBETH]

- 4 - NJI-540(X)
(6) Port setting (between communication board and basic unit)
Choose “SERIAL” in the menu in the left side on the screen.
Click the OK after entering the required parameters.
Port setting
Request Timeout is waiting time to respond. Use the default value
(20ms) in normal use.
(7) Saving the setting information
Choose “SYSTEM” in the menu in the left side on the screen. Check
the box of SAVE and then click the OK.
(8) Rebooting the option board
Rebooting EH-OBETH is required to enable the settings. Check the
box of REBOOT and click the OK or restore power to the basic unit.
Convenient functions
(1) Password protection for communication parameters
Password can be set in “ADMINISTRATOR” menu to protect
communication parameters. Up to 20 alphameric characters can be set.
[Notice]
Do not forget your password. If the password is lost, it is impossible to
change communication setting.
(2) If IP address is unknown
If the settings of serial communication of EH-OBETH is matched with
basic unit, IP address and MAC address can be monitored in special
internal outputs shown below.
Special internal
output Meaning
WRF1A9 IPaddress (1st byte)
WRF1AA IPaddress (2nd byte)
WRF1AB IPaddress (3rd byte)
WRF1AC IPaddress (4th byte)
WRF1AD MAC address (1st and 2nd bytes)
WRF1AE MAC address (3rd and 4th bytes)
WRF1AF MAC address (5th and 6th bytes)
192 168 0 1
IP Address
WRF1A9 WRF1A
A
WRF1AB WRF1AC
MAC Address XX XX XX XX XX XX
WRF1AD WRF1AE WRF1AF
Value of special internal output
Above special internal outputs are set once at start up of EH-OBETH.
In ROM version 1.50 or older MICRO-EH, if retentive area is cleared
or CPU is initialized, above values are cleared to 0.
Basic units supporting EH-OBETH
EH-OBETH can be used with following basic units.
Basic units supporting EH-OBETH
64 points type Hardware Rev. 1.10 or later
40 points type (MFG No. 05Gxx or later)
20 points type
Other than above EH-OBETH is not supported.
CAUTION
-If EH-OBETH is used with unsupported MICRO-EH, the system
might be unstable due to power short.
i
i
!