Hitachi EH-RMP2 Instructions for use

HITACHI PROGRAMMABLE CONTROLLER
PROFIBUS-DP MASTER MODULE 2
(EH-RMP2)
APPLICATION MANUAL
NJI-621A(X)
(SERVICE MANUAL)

○Warranty period and coverage
The warranty period is the shorter period either 18 months from the data of manufacture or 12 months from the date
of installation.
However within the warranty period, the warranty will be void if the fault is due to;
(1) Incorrect use as directed 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. And within the warranty period ant repair and
examination which results in information showing the fault was caused by ant of the items mentioned above, the
repair and examination cost are not covered. If you have ant questions regarding the warranty please contact with
your supplier or the local Hitachi Distributor. (Depending on failure part, examination might be impossible.)
○Ordering parts or asking questions
When contacting us for repair, ordering parts or inquiring about other items, please have the following details ready
before contacting the place of purchase.
(1) Model
(2) Manufacturing number (MFG.No.)
(3) Details of the malfunction
○Reader of this manual
This manual is described for the following person.
・Person considering the introduction of PLC
・PLC system engineer
・Person handling PLC
・Manager after installing PLC
Warning
(1) Reproduction of the contents of this manual, in whole or in part, without written permission of Hitachi-IES, is
prohibited.
(2) The content of this document may be changed without notice.
(3) While efforts have been made to be accurate, if any wrong or missing information is found, please contact us.
Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
PROFIBUS, PROFIBUS-DP are trademarks of PROFIBUS international.

Safety Precautions
Read this manual and related documents thoroughly before installing, operating, performing preventive maintenance or
performing inspection, and be sure to use the unit correctly. Use this product after acquiring adequate knowledge of the
unit, all safety information, and all cautionary information. Also, make sure this manual enters the possession of the
chief person in charge of safety maintenance.
Safety caution items are classifies as “Danger” and “Caution” in this document.
DANGER
: Identifies information about practice or circumstances, which may lead to personal injury or
death, property damage, or economic loss.
CAUTION
: Identifies information about practice or circumstances, which may lead to personal injury,
property damage, or economic loss.
However, depending on the circumstances, items marked with may result in major accidents.
The both marks show important information. Be sure to follow the instructions.
Icons for prohibited items and required items are shown below:
: Identifies prohibition. For example, when open flames are prohibited, is indicated.
: Identifies requirement. For example, when grounding must be performed, is indicated.
1. Installation
CAUTION
Use this product in an environment as described in the catalog or this document.
If this product is used in an environment subject to high temperature, high humidity, excessive dust, corrosive
gases, vibration or shock, it may result in electric shock, fire or malfunction.
Be sure to install the PLC according to this manual. Failure to do so could result in damage by falling off,
failure or malfunction.
Do not allow foreign objects such as wire chips to enter the unit.
They may become the cause of fire, malfunction or failure.
CAUTION

2. Wiring
REQUIRED
The PLC must be grounded (FE terminal).
Failure to do so could result in injury to personnel or causing it to malfunction.
CAUTION

Always use the power supply voltage listed in specifications. Using other voltage may damage the equipment or
present a risk of fire.
The wiring operation should be performed by a qualified personnel.
Failure to do so could result in fire, damage or electric shock.
3. Precautions when using the unit
DANGER
Do not touch the terminals while the power is on.
There is a risk of electric shock.
Appropriate emergency stop circuit, interlock circuitry and similar safety measures should be added to the PLC
system to ensure safety in the event of incorrect, missing or abnormal signals caused by broken signal lines,
momentary power interruptions or other causes. Do not share the power supply of relay output module and
interlock circuitry because relay output might not work properly due to switching noise from interlock circuitry.
CAUTION
When performing program change, forced output, RUN, STOP, etc., while the unit is running, be sure to check
system safety carefully. Failure to do so could lead to damage to equipment.
Supply power according to the power–up order.
Failure to do so could lead to damage to equipment or malfunction.
CAUTION
USE POWER SUPPLY UNIT OF EH-PS SERIES FOR SUPPLYING ELECTRIC POWER.

4. Preventive maintenance
DANGER
Do not connect the +/-of the battery in reverse polarity. Do not recharge, disassemble, heat, place in fire, or
short circuit the battery. There is a risk of explosion or fire.
PROHIBITED
Do not attempt to disassemble, repair or modify any part of the PLC.
Electric shock, malfunction or failure may result.
CAUTION
Turn off power to the PLC before mounting or dismounting the module
Electric shock, malfunction or failure may result.

Revision History
No. Description of revision Date of
revision
Manual number
1
The first edition
Oct. 2014
NJI-621(X)
2 Support for compatible mode Feb. 2016 NJI-621A(X)

Table of Contents
Chapter 1 Introduction 1-1 to 1-4
1.1 Before use..................................................................................................................................... 1-1
1.2 Item packaged with the module .................................................................................................... 1-1
1.3 System configurations................................................................................................................... 1-2
1.4 Difference between EH-RMP2 and EH-RMP................................................................................ 1-3
1.5 Replacement from EH-RMP ......................................................................................................... 1-4
Chapter 2 Specifications 2-1 to 2-6
2.1 General Specifications .................................................................................................................. 2-1
2.2 Functional Specifications .............................................................................................................. 2-2
2.3 Name and function of each part.................................................................................................... 2-3
Chapter 3 Installation 3-1 to 3-5
3.1 Mounting module .......................................................................................................................... 3-1
3.2 Mountable slots for EH-RMP2 ...................................................................................................... 3-2
3.3 Wiring............................................................................................................................................ 3-3
3.3.1 PROFIBUS port.................................................................................................... 3-3
3.3.2 Recommened connectors .................................................................................... 3-3
3.3.3 Cable parameters ................................................................................................ 3-4
3.3.4 Maximum length of bus segment......................................................................... 3-5
Chapter 4 Operation 4-1 to 4-21
4.1 Start up ......................................................................................................................................... 4-1
4.1.1 DIP switch ............................................................................................................ 4-1
4.1.2 Rotary switch........................................................................................................ 4-3
4.1.3 Configuration from configurator ........................................................................... 4-4
4.1.4 Configuration from programming tool .................................................................. 4-13
4.2 Data format ................................................................................................................................... 4-17
4.3 Offset address............................................................................................................................... 4-18
4.4 Assignment method ...................................................................................................................... 4-20
Chapter 5 Indications 5-1 to 5-9
5.1 LED indications ............................................................................................................................. 5-1
5.1.1 RDY LED.............................................................................................................. 5-1
5.1.2 STATUS LED....................................................................................................... 5-2
5.1.3 RUN LED ............................................................................................................. 5-4
5.1.4 ERR LED.............................................................................................................. 5-4
5.2 Link information flag area.............................................................................................................. 5-5
5.2.1 Get link information .............................................................................................. 5-5
5.2.2 Detail of each information ................................................................................... 5-8
Chapter 6 Troubleshooting 6-1 to 6-2
6.1 Error indications of EH-RMP2....................................................................................................... 6-1
6.2 New entry of slave unit to PROFIBUS .......................................................................................... 6-2
6.3 Startup time of EH-RMP2 ............................................................................................................. 6-2

MEMO

1 – 1
Chapter 1 Introduction
1.1 Before use
Thank you very much for choosing Hitachi Programmable Controller (hereinafter referred to as PLC), EH-150 series.
This manual explains how to use the PROFIBUS-DP master module 2 with the Hitachi EH-150 series Programmable
Controller. Read this manual thoroughly and keep for installation operations, maintenance checks and other
procedures. The following documentation related to PLC is also available and should be used together with this
manual.
Table 1.1-1 List of Description materials
Items Title of document Manual number
EHV+ series Main system of EHV+ IEC 61131-3 Compliant PLC
EHV+ APPLICATION MANUAL
NJI-564*(X)
EHV series
Main system of EHV EH-150 EHV-CPU APPLICATION MANUAL
EH-150 EHV-CPU PROGRAMMING MANUAL
NJI-481*(X)
NJI-482*(X)
Programming software
(Standard edition)
EH-150 EHV series Ladder Programming software
Control Editor INSTRUCTION MANUAL
NJI-537*(X)
Programming software
(Variable Name Edition)
EH-150 EHV series Ladder Programming software
Control Editor INSTRUCTION MANUAL
NJI-486*(X)
EH-150 series
Main system of EH-150 EH-150 APPLICATION MANUAL NJI-280*(X)
Programming software LADDER EDITOR for Windows®
INSTRUCTION MANUAL
NJI-206*(X)
* The alphabet between the number and (X) means version (A,B…) and the space means the first edition.
1.2 Item packaged with the module
Great care has been taken in the manufacture of this product, but we advise that the following points are checked
immediately after purchase.
1. Is the model the same one that you ordered?
2. Has the product been damaged in any way?
3. Are any of the accessories listed in Table 1.2-1 missing?
Table 1.2-1 List of accessories supplied with the EH-RMP2
No. Product name Model name Appearance Quantity Remarks
1 PROFIBUS
Master module 2 EH-RMP2
1
2 Instruction manual NJI-617*(X)
1
3 Ferrite Core SFC-10
2
For applying CE marking (EMC direction).
Please refer to 3.3 Wiring.

Chapter 1 Introduction
1 –2
1.3 System configurations
EH-RMP2 is master module on PROFIBUS-DP protocol of industrial network. EH-RMP2 is helpful as master
controller of PROFIBUS system. Example of system configuration is shown below.
Figure 1.3-1 Example of system configurations
1 2 3 4 5 6 7 8 9 10
11
1 2 3
U
p to 125 DP-slaves.
Basic unit
1 2 3 4 5
12 13
14 15 16 17 18 19 20 21 22
U
p to 125 DP-slaves.
DP Slave DP Slave
Slave unit
1 2 3 4 5
Slave unit
Slave unit
EH-RMP2
EH-IOCP2
EH-IOCP2
EH-IOCP2
EHV+

Chapter 1 Introduction
1 –3
1.4 Difference between EH-RMP2 and EH-RMP
There are some differences between EH-RMP2 and EH-RMP.
(1) Configuration tool
EH-RMP : Sycon
EH-RMP2 : SYCON.net
(2) Configuration cable
EH-RMP : Exclusive serial cable
EH-RMP2 : USB cable (The cable currently used in EHV series can be used.)
(3) Bus Termination
EH-RMP : Built-in
EH-RMP2 : Not built-in (Please use a connector which has a termination switch.)
CAUTION
!
EH-RMP2 expands the input and output size to use in PROFIBUS network in comparison with
EH-RMP. For this reason, inspite of standard mode / compatible mode,
the input data of the PROFIBUS
network may be rarely affected under noise environment. As measures method under the noise
environment, we recommend the following measures.
(1) PROFIBUS cable and signal cables of various input and output modules must be routed in metal
duct separated from power cables.
(2) The shield wire of PROFIBUS cable must be grounded both ends.
(3) By increasing the capacity of the power supply for the input and output signals, reduce the voltage
fluctuation due to noise.

Chapter 1 Introduction
1 – 4
1.5 Replacement from EH-RMP
Cautions of replacement from EH-RMP are shown below.
Table 1.5-1 Cautions of replacement from EH-RMP (Standard mode)
No. Item EH-RMP EH-RMP2 Action
1 Configuration tool Sycon SYCON.net Configurations file is not compatible between
EH-RMP and EH-RMP2. Please reconfigure
with use of SYCON.net.
When reconfiguration, please set 2 byte
boundaries in Module Alignment. Refer to
section 4.4 for details.
2 Configuration cable D-sub 9 pin
serial connector Type-B USB cable Please prepare the type-B USB cable. Type-B USB cable is same as cable of using
in EHV / EHV+ series.
3 Link parameter of
CPU module Sending data area is WLx000 to WLx0FF Sending data area is WLx000 to WLx1FF Please change parameter with use of the programming tool.
At the time of the standard mode use, it
becomes link parameter error setting other
than WLx000 to WLx1FF.
4 Terminator Build-in Not Build-in Please use a connector
which has a termination switch.
5 Rotary switch - The input / output sizes
of PROFIBUS network Please set rotary switch to “0”.
6 Side DIP switch Output hold selecting Please set same settings.
7 Operating mode selecting Please set to standard mode setting.
8 Start-up time 5 second 10 second Please change user program.
9 LED indications RDY, RUN, STATUS,
ERR, TOKEN RDY, RUN, ERR, STATUS, REM Please check each application manual.
Table 1.5-2 Cautions of replacement from EH-RMP (Compatible mode)
No. Item EH-RMP EH-RMP2 Action
1 Configuration tool Sycon SYCON.net Configurations file is not compatible between
EH-RMP and EH-RMP2. Please reconfigure
with use of SYCON.net.
When reconfiguration, please set 2 byte
boundaries in Module Alignment. Refer to
section 4.4 for details.
2 Configuration cable D-sub 9 pin
serial connector Type-B USB cable Please prepare the type-B USB cable. Type-B USB cable is same as cable of using
in EHV / EHV+ series.
3 Link parameter of
CPU module Sending data area is WLx000 to WLx0FF Sending data area is WLx000 to WLx0FF It isn't necessary to be change. At the time of compatible mode use, it
becomes link parameter error setting address
over WLx000 to WLx0FF.
4 Terminator Build-in Not Build-in Please use a connector
which has a termination switch.
5 Rotary switch - The input / output sizes
of PROFIBUS network Please set rotary switch to “0”.
6 Side DIP switch Output hold selecting Please set same settings.
7 Operating mode selecting Please set to compatible mode setting.
8 Start-up time 5 second 10 second Please change user program.
9 LED indications RDY, RUN, STATUS,
ERR, TOKEN RDY, RUN, ERR, STATUS, REM Please check each application manual.

2 – 1
Chapter 2 Specifications
2.1 General Specifications
General specifications are shown in Table 2.1-1. These specifications are common in EH-150 series.
Table 2.1-1 General specifications
Item Specifications
Operating ambient temperature 0 to 55 °C
Storage ambient temperature
－
10 to 75
°
C
Operating ambient humidity 5 to 95 % RH (no condensation)
Storage ambient humidity
5 to 95 % RH (no condensation)
Vibration resistance Conforms to IEC 60068-2-6
Noise resistance ○Noise voltage 1,500 Vpp Noise pulse width 100 ns, 1μs
(Noise created by the noise simulator is applied across the power supply modules input
terminals. This is determined by this company’s measuring method.)
○Based on IEC61131-2
○
Static noise: 3,000V at metal exposed area
Insulation resistance 20 MΩ or more between the AC external and case ground (FE) terminal
(based on 500 V DC)
Dielectric withstand voltage
1,500 V AC for 1 minute between the AC external terminal and case ground (FE) terminal
Grounding Class D grounding (ground with power supply module)
Usage environment
No corrosive gases, no excessive dust
Structure Open, wall-mount type
Cooling
Natural air cooling

Chapter 2 Specifications
2 –2
2.2 Functional Specifications
Functional specifications are shown in Table 2.2-1.
Table 2.2-1 Functional specifications
Item
Specifications
EH-RMP2
EH-RMP
(Existing model)
Standard mode Compatible
mode*3
Communication specifications
Communication protocol PROFIBUS-DP V0
Range of node address
0 to 125: Setting by configuration tool
Maximum I/O size Input: 512 words, output: 512 words
(Setting by rotary switch)
Input: 256 words, output: 256 words
Connector
D-sub 9 pin
Topology
BUS
Communication cable
PROFIBUS cable
Segment length,
Transmit speed
9.6
19.2
93.75
187.5
500
1500
3
6
12
kbps
kbps
kbps
kbps
kbps
kbps
Mbps
Mbps
Mbps
: 1,200 m
: 1,200 m
: 1,200 m
: 1,000 m
: 400 m
: 200 m
: 100 m
: 100 m
: 100 m
Maximum connectable
number of slaves
125 slaves
Output hold Supported (Clear mode, Freeze mode, Copy mode*1)
Termination
Not built-in
Built-in
Configuration tool
SYCON.net
SyCon
Functional specifications
Support CPU module
EH-CPU316A/516/548/548RP, EHV-CPU16/32/64/128/128RP, EHV-CPU1025/1102
I/O assignment LINK
Number of
modules
EH-CPU
2 modules / CPU
EHV-CPU
8 modules / CPU
Self-check WDT check WDT check
System memory check
Error indication LED
Current consumption
780 mA
600 mA
Standard compliant
CE, C-Tick*2
UL, CE, C-Tick
*1 When using EH-CPU316A, this mode is effective in case that EH-CPU316A ROM version is 02 or higher.
*2 UL is not supported. Contact your local supplier for further information.
*3 The compatible mode has supported from SOFTWARE VER.0114.

Chapter 2 Specifications
2 –3
2.3 Name and function of each part
Name and function of each part
Model name
EH-RMP2
3] USB communication connector
2] Communication connector
4] LED display
6] Reset switch
1] Lock button
7] Side DIP switch
5] Rotary switch
Weight
0.16 kg
( 0.35 lb )
Current consumption
(5VDC) 0.78 A
Dimensions (mm (in.))
30 (1.18)
100 (3.94)
95 (3.74)
No. Name Function Remarks
1] Lock button Press this button to dismount.
Module can be fixed firmly by a screw of M4 × 10mm (0.39in).
2] Communication connector D-sub 9-pin connector for communication cable.
3] USB communication
connector
Type-B USB connector for configuration.
4] LED display The status of module is displayed on this LED.
5]
Rotary switch
This is a rotary switch to set network input / output sizes.
6] Reset switch The module can be reset by pressing this switch when the module
detected an error.
At the time the RDYLED is turned off immediately after the press,
it will be reset.
Please do not press and
hold the reset switch.
7]
Side DIP switch
This is a switch to set an operation mode.
Description of Connector
Connector Symbol Indication Details
PROFIBUS
1
5
6
9
PROFIBUS Communication
connector
D-sub 9 pin connector.
Terminal layouts are shown below.
Pin No.
Details
1 NC
2
NC
3 B-Line
4
NC
5 GND
6
+5 V DC
7 NC
8
A-Line
9 NC

Chapter 2 Specifications
2 –4
Description of LED display
CAUTION
!
In establishing all slave units, Error status LED is lighting for a moment but it is no problem.
LED LED
name Indication Details
RDY
STATUS
RUN
ERR
REM
PROFIBUS
EH-RMP2
RDY Hardware status
(Green / Red)
Display EH-RMP2 hardware status.
State Details
Off Hardware error
Power supply error
Flash in green or red Initialization
Lit in red
Hardware error
Lit in green No error
STATUS System status
(Green / Red)
Display the EH-RMP2 system status.
State Details
Off Power supply error
Flash in red Internal error
Lit in red WDT error
Side DIP switch setting error
Fifth-flash in green Side DIP switch setting error
Forth-flash in green Link parameter error
Triple-flash in green Configuration data error
Double-flash in green CPU module error
Single-flash in green Initialization
Lit in green No error
RUN Network status
(Green)
Display PROFIBUS network status.
State Details
Off
No communication established
Blinking Under communication establishment
On
Communication established
ERR Error status
(Red)
Display PROFIBUS error status.
State Details
Off No error
Blinking Slave units at least one are not
established.
On All slave units are not established
REM Operating mode
(Green) No use. It is always off.

Chapter 2 Specifications
2 –5
The state of LED is indicated below.
Triple-flash
Single-flash
Double-flash
On
Off
On
Off
On
Off
200ms
200ms
500ms
200ms
200ms
200ms
200ms
600ms
200ms
200ms
200ms
600ms
Blinking
On
Off
100ms
n times-flash
On
Off
200ms
200ms
200ms
200ms
1
2
n
100ms
500ms
600ms
Description of Rotary switch
Rotary switch Symbol Meaning Details of setting
MODE
4
0
8
1
2
3
9
5
6
7
[Default setting: 0]
MODE Input / Output
Sizes
The input / output sizes of PROFIBUS network are set by rotary switch.
Value Network size Input size Output size
0 Variable size 512 words max 512 words max
1 64W / 64W fixed 64 words 64 words
2 128W / 128W fixed 128 words 128 words
3 256W / 256W fixed 256 words 256 words
4 512W / 512W fixed 512 words 512 words
5
Variable size 512 words max 512 words max
6
7
8
9
In case of the compatible mode, the input / output sizes of PROFIBUS are
fixed at 256words / 256words in spite of setting of this switch.
Please set rotary switch to 0 if you use auto addressing function with use of the SYCON.net. If you map each slave I/O
address including offset address, please set rotary switch value 1, 2, 3 or 4. When actual input / output sizes exceed
setting sizes, EH-RMP2 detects error.

Chapter 2 Specifications
2 –6
Description of Side DIP switch
No.
Setting description
Details
1
No use
1
ON
2
3
4
[Default setting: OFF]
Please keep off.
2
EH-RMP compatible
mode
ON
2
3
4
1
[Default setting: OFF]
OFF : Standard mode
ON : Compatible mode
3,4
Output hold selecting
ON
2
3
4
1
[Default setting: OFF]
When the CPU is switched from RUN to STOP position, it can select output status.
Bit4
Bit3
Position
Output hold function selection
OFF
OFF
3
4
1
ON
2
Clear mode.
When the CPU is switched from RUN to STOP position,
EH-RMP2 outputs the zero data to PROFIBUS. But the
link area (WL) is not cleared.
OFF
ON
3
4
1
ON
2
Freeze mode.
When the CPU is switched from RUN to STOP position,
EH-RMP2 holds output data that is last data received.
ON
OFF
3
4
1
ON
2
Copy mode.
When the CPU is switched from RUN to STOP position,
EH-RMP2 continues to copy in the link area.
When using EH-CPU316A, this mode is effective in case
that EH-CPU316A ROM version is 02 or higher.
ON
ON
3
4
1
ON
2
Don’t care.
Downward position is ON side in case of side
view like left figure.
Downward
position is ON

3 – 1
Chapter 3 Installation
3.1 Mounting Module
(1) Mounting
②
①
Figure 3.1-1 Mounting Module
1] Hook the lower part of the module to the hole in
the base.
2] Press in the upper side of the module until it clicks.
Note 1: Make sure the module is mounted securely.
Note 2: Slot position of power supply module is
fixed as 1st slot of base unit.
Note 3: Slot position of CPU module is fixed as 2nd
slot of base unit.
Modules can be fixed firmly by M4×10mm screws.
(2) Removing
②
①
③
Figure 3.1-2 Removing Module
1] Press the lock button.
2] With the lock button pressed, pull the top of
the module.
3] Pull the unit away from the base unit.
Note: Press the lock button for a power supply
module.

Chapter 3 Installation
3 – 2
3.2 Mountable slots for EH-RMP2
The mounting position of EH-RMP2 is restricted according to CPU module. EH-RMP2 cannot be on expansion base
unit regardless of CPU module.
(1) If you use EHV-CPU16/32/64/128 in CPU module.
Maximum 8 link modules (EH-RMP2) can be on base unit. Mountable slot numbers are 0 to 7 as shown in Figure3.2-1.
Please note that EHV-CPU16/32/64/128 cannot mount on old model base unit (EH-BS3, EH-BS5, EH-BS8).
0 1 2 3 4 5 6 7 Slot No. 8 9 A
Figure 3.2-1 Mountable slots for EH-RMP2 (EHV-16/32/64/128)
(2) If you use EHV-CPU1025/1102 in CPU module.
Maximum 8 link modules (EH-RMP2) can be on base unit. Mountable slot numbers are 0 to 7 as shown in Figure3.2-2.
Please note that EHV-CPU1025/1102 cannot mount on old model base units (EH-BS3, EH-BS5, EH-BS8).
0 1 2 3 4 5 6 7 Slot No. 8 9 A
Figure 3.2-2 Mountable slots for EH-RMP2 (EHV-CPU1025/1102)
(3) If you use EH-CPU516/548 in CPU module.
Maximum 2 link modules (EH-RMP2) can be on base unit. Mountable slot numbers are 0 to 7 as shown in
Figure3.2-3.
0 1 2 3 4 5 6 7 Slot No. 8 9 A
Figure 3.2-3 Mountable slots for EH-RMP2 (EH-CPU516/548)
If base unit is old model base units (EH-BS3, EH-BS5, EH-BS8), mountable slot numbers are 0 to 2.