Omron E5CD-**2**M-004 Series, E5CD-**2**M-002 Series, E5ED-**4**M-004 Series, E5ED-**4**M-022 Series, E5ED-**4**M-008 Series Connection Manual
...
Machine Automation Controller NJ-series
General-purpose Serial
Connection Guide
(RS-485 CompoWay/F)
OMRON Corporation
Digital Temprature Controller
(E5□D / E5□C / E5□C-T)
P520-E1-02
About Intellectual Property Rights and Trademarks
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
Windows is a registered trademark of Microsoft Corporation in the USA and other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation
GmbH, Germany.
Sysmac is a trademark or registered trademark of OMRON Corporation in Japan and other
countries for OMRON factory automation products.
Company names and product names in this guide are the t rademarks or registered trademarks
of their respective companies.
Table of Contents
1. Related Manuals ........................................................................................ 1
2. Terms and Definitions ............................................................................... 1
3. Precautions ................................................................................................ 2
4. Overview .................................................................................................... 3
5. Applicable Devices and Device Configuration ....................................... 4
Applicable Devices ............................................................................. 4 5.1.
Device Configuration .......................................................................... 6 5.2.
6. Serial Communications Settings ............................................................. 8
Parameters ........................................................................................ 8 6.1.
Cable Wiring ...................................................................................... 9 6.2.
7. Serial Communications Connection Procedure ................................... 10
Work Flow ........................................................................................ 10 7.1.
Digital Temperature Controller Setup ................................................ 11 7.2.
Controller Setup ............................................................................... 15 7.3.
Serial Communication Status Check ................................................ 30 7.4.
8. Initialization Method ................................................................................ 32
Initializing a Controller ...................................................................... 32 8.1.
Initializing a Digital Temperature Controller ...................................... 33 8.2.
9. Program .................................................................................................... 34
Overview .......................................................................................... 34 9.1.
Destination Device Command .......................................................... 40 9.2.
Error Detection Processing .............................................................. 43 9.3.
Variables .......................................................................................... 44 9.4.
ST Program ...................................................................................... 46 9.5.
Timing Charts ................................................................................... 51 9.6.
Error Processing .............................................................................. 52 9.7.
10. Revision History .................................................................................. 56
1．Related Manuals
1
for NJ-series CPU Unit
1. Related Manuals
To ensure system safety, make sure to always read and follow the information provided in all
Safety Precautions and Precautions for Saf e Use in the manuals for each device which is
used in the system.
The table below lists the manuals pertaining to t his guide.
Cat. No. Model Manual name
W500 NJ501-□□□□
NJ301-□□□□
NJ101-□□□□
W501 NJ501-□□□□
NJ301-□□□□
NJ101-□□□□
W502 NJ501-□□□□
NJ301-□□□□
NJ101-□□□□
W504 SYSMAC-SE2□□□ Sysmac Studio Version 1 Operation Manual
W494 CJ1W-SCU□2 CJ-series
NJ-series
CPU Unit
Hardware User's Manual
NJ/NX-series
CPU Unit
Software User's Manual
NJ/NX-series
Instructions Reference Manual
Serial Communications Units
Operation Manual
H225 E5□D Digital Temperature Controllers
Communications Manual
H224 E5□D Digital Temperature Controllers User’s Manual
H175 E5□C Digital Temperature Controllers
Communications Manual
H174 E5□C Digital Temperature Controllers User’s Manual
H186 E5□C-T Digital Temperature Controllers
Programmable Type
Communications Manual
H185 E5□C-T Digital Temperature Controllers
Programmable Type User’s Manual
2. Terms and Definitions
Term Explanation and Definition
Serial Gateway
mode
This is a function of PLC that performs serial communic ations by
automatically converting a message (command data) to a specified
protocol (CompoWay/F, Modbus-RTU, or Modbus-ASCII), depending on
the type of message.
3．Precautions
2
Indicates a potentially hazardous situation whi ch, if not avoided,
damage.
Precautions for Correct Use
Additional Information
Symbol
3. Precautions
(1) Understand the specifications of devices which are used in the system. Allow some
margin for ratings and performance. Provide saf ety measures, such as installing a safety
circuit, in order to ensure safety and minimize the risk of abnormal occurrence.
(2) To ensure system safety, make sure to always read and follow the information provided in
all Safety Precautions and Precautions for Safe Use in the manuals for each device
which is used in the system.
(3) The user is encouraged to confirm the standards and regulations that the system must
conform to.
(4) It is prohibited to copy, to reproduce, and to distribute a part or the whole of this guide
without the permission of OMRON Corporation.
(5) The information contained in this guide is current as of March 2018. It is subject to
change for improvement without notice.
The following notations are used in this guide.
may result in minor or moderate injury, or may result in serious
injury or death. Additionally there may be significant property
Indicates a potentially hazardous situation whi ch, if not avoided,
may result in minor or moderate injury or property damage.
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional information to read as required.
This information is provided to increase unders tanding or make operation easier.
The filled circle symbol indicates operations that you must do.
The specific operation is shown in the circl e and explained in the text.
This example shows a general precaution for something t hat you must do.
4．Overview
3
Name
File name
Version
Command data
Response data
4. Overview
This guide describes procedures for connecting a Digital Temperature Controller (E5□D,
E5□C or E5□C-T) to an NJ-series Machine Automation Controller + Serial Communications
Unit (hereinafter referred to as the "Controller") via serial communications, both produced by
OMRON Corporation (hereinafter referred to as "OM RO N"), and for checking their
communication status.
Refer to Section 6. Serial Communications Set tings and Section 7. Serial Communications
Connection Procedure to understand setting methods and key points to send or receive a
message via serial communications.
The program in the prepared Sysmac Studio project file is used to check the serial connection
by sending or receiving a message of ''Read Controller Attributes'' to/from the Digital
Temperature Controller.
■The send/receive messages of "Read Controller Attributes''
Controller
Sending command data Executing the command
Receiving response data
and storing in memory
Prepare the Sysmac Studio project file with a lat est version beforehand.
To obtain the Sysmac Studio project file, contact your OMRON representative.
Sysmac Studio project file
(extension: csm2)
Hereinafter, the Sysmac Studio project file is referred to as “the project file".
This guide aims to explain wiring methods and communications settings
necessary to connect corresponding devic es and provides the setting
procedures. The program used in this guide is not designed to be cons tantly
used at a site but is designed to check if the c onnection is properly established.
Both functionalities and performances are therefore not fully considered for the
program.
When you actually construct a system, please us e the wiring methods,
communications settings and setting procedures described in this guide as a
reference, and design a program according to you r appl ication needs.
Serial communications
(RS-485)
Returni ng response data
P520_NJ_CWF485_OMRON_E5CD_V100.
csm2
Digital Temperature
Controller
Ver.1.00
4
5. Applicable Devices and Device Configuration
OMRON
NJ-series CPU Unit
NJ501-□□□□
NJ101-□□□□
OMRON
Serial Communications Unit
CJ1W-SCU□2
E5CD-□□2□□M-002
E5EC-T□□4□SM-022
5．Applicable Devices and Device Configuration
Applicable Devices 5.1.
The applicable devices are as follows:
Manufacturer Name Model
NJ301-□□□□
OMRON Digital Temperature Controller
E5CD-□□2□□M-004
E5ED-□□4□□M-004
E5ED-□□4□□M-008
E5ED-□□4□□M-022
E5CC-□□□□□M-002
E5CC-□□□□□M-003
E5CC-□□□□□M-004
E5AC-□□□□SM-004
E5AC-□□□□SM-008
E5AC-□□□□SM-009
E5AC-□□□□SM-012
E5AC-□□□□SM-014
E5EC-□□□□□M-004
E5EC-□□□□□M-008
E5EC-□□□□□M-009
E5EC-□□□□□M-012
E5EC-□□□□□M-014
E5DC-□□□□□M-002
E5DC-□□□□□M-015
E5GC-□□□□□M-015
E5CC-T□□3□SM-002
E5CC-T□□3□SM-003
E5CC-T□□3□SM-004
E5AC-T□□4□SM-004
E5AC-T□□4□SM-008
E5AC-T□□4□SM-020
E5AC-T□□4□SM-022
E5EC-T□□4□SM-004
E5EC-T□□4□SM-008
E5EC-T□□4□SM-020
5．Applicable Devices and Device Configuration
5
Precautions for Correct Use
Additional Information
In this guide, the devices with models and versions listed in 5.2. Device Configuration are
used as examples of applicable devices to des cribe the procedures for connecting the
devices and checking their connection.
You cannot use devices with versions lower than the versions list ed i n 5.2.
To use the above devices with models not listed in 5.2. or versions higher than those listed in
5.2., check the differences in the specifications by referring to t he manuals before operating
the devices.
This guide describes the procedures for establi shing the network connection.
It does not provide information on operation, installation, wiring method, device functional it y,
or device operation, which is not related to the connection procedures.
Refer to the manuals or contact your OMRON representative.
5．Applicable Devices and Device Configuration
6
OMRON
Serial Communications Unit
CJ1W-SCU42
Ver.2.0
OMRON
Sysmac Studio
SYSMAC-SE2□□□
Ver.1.21
-
Serial cable (RS-485)
-
Precautions for Correct Use
Precautions for Correct Use
Precautions for Correct Use
Personal computer
NJ501-1500＋
CJ1W-SCU42
Serial cable
E5CD-RX2A6M-002
USB cable
Device Configuration 5.2.
The hardware components to reproduce the connect i on procedures in this guide are as
follows:
(Sysmac Studio installed,
OS: Windows 7)
Manufacturer Name Model Version
OMRON NJ-series CPU Unit NJ501-1500 Ver.1.16
OMRON Power Supply Unit NJ-PA3001
(RS-485)
OMRON Sysmac Studio project file P520_NJ_CWF485_OMRON_E
Ver.1.00
5CD_V100.csm2
- Personal computer
-
(OS: Windows 7)
- USB cable
-
(USB 2.0 type B connector)
OMRON Digital Temperature Controller E5CD-RX2A6M-002
Prepare the project file with a latest version beforeh and.
To obtain the project file, contact your OMRON representative.
Update Sysmac Studio to the version speci fied in this Clause 5.2. or to a higher version.
If you use a version higher than the one specified, the procedures and related screenshots
described in Section 7. and the subsequent sections may not be applicable.
In that case, use the equivalent procedures described in this guide by referring to the Sysmac
Studio Version 1 Operation Manual (Cat. No. W504).
Turn ON the terminating resistance switch on the Serial Communications Unit and connect
120 Ω (1/2 W) terminating resistance to the terminals of the Digital Temperature Controller at
either end of the RS-422A/485 transmission path.
7
Additional Information
Operation Manual (Cat. No. W504).
For information on the serial cable (RS-485), refer to 3-3 RS-232C and RS-422A/485 Wiring
of the CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit (Cat.
No. W494).
Additional Information
The system configuration in this guide uses USB for the connection between the personal
computer and the Controller. For information on how to install the USB driver, refer to A-1
Driver Installation for Direct USB Cable Connection of the Sysmac Studio Version 1
5．Applicable Devices and Device Configuration
6．Serial Communications Settings
8
(transmission character)
Baud rate
9,600 bps (default)
9,600 bps (default)
6. Serial Communications Settings
This section describes the parameters and cable wiri ng, which are set up in this guide.
Parameters 6.1.
The following parameters are required to connect t he Controller and the Digital Temperature
Controller via serial communications .
Setting item
Device name J01 Unit No. 0 Communications Unit No.
(slave address)
Serial communications port
(connection)
Terminating resistance Terminating resistance ON
2-wire or 4-wire 2-wire (WIRE: 2) 2-wire (fixed)
Serial communications mode Serial Gateway Data length
(Serial Communications Unit)
- 1 (default)
Port 1 (RS-422A/485) -
(TERM: ON）
7 bits (default) 7 bi ts (default)
Controller
Digital Temperature
Controller
-
Stop bits 2 bits (default) 2 bi ts (default)
Parity (parity bit) Even (default) Even (default)
Communications method - CompoWay/F (default)
Send data wait time - 20 ms (default)
Precautions for Correct Use
The connection procedure described in this gui de assumes that the following Serial
Communications Unit, port and setting values are used.
Model: CJ1W-SCU42
Serial communications port: Port 1
Unit No.: 0
Device name: J01
If you connect devices under different conditions, refer to Section 9. Program and create a
program by changing the variable names and sett i ng values .
6．Serial Communications Settings
9
Pin No.
Signal name
Input/Output
5 (See note 2.)
FG
Shield
-
SDB+
4
Additional Information
refer to their respective manuals.
Ter minating r esistance
Cable Wiring 6.2.
Refer to Section 3 Installation and Wiring of the CJ-series Serial Communications Units
Operation Manual for NJ-series CPU Unit (Cat. No. W494) for details on cable wiring.
Check the connector configurations and pin assignments before wiring.
■Connector configuration and pin assignment
Digital Temperature Controller (E5CD) applicable connector: Termi nal block
1-12
13 B(+) Input/Output
14 A(-) Input/Output
15-18
Serial Communications Unit (CJ1W-SCU42) applicable connector: Terminal block
Pin No. Symbol Signal name Input/Output
1 (See note 1.) RDA Receive data - Input
2 (See note 1.) RDB Receive data + Input
3 (See note 1.) SDA Send data - Output
4 (See note 1.) SDB Send data + Output
Note 1: For 2-wire connection, use either pins 1 and 2 or pins 3 and 4.
2: Pin 5 (Shield) is connected to the GR terminal on the Power Supply Unit though the
Serial Communications Unit. The cable shield can thus be grounded if you ground the
GR terminal of the Power Supply Unit.
■Cable and pin assignment
Serial Communications
Digital Temperature Controller
Unit (CJ1W-SCU42)
RS-422A/
485
interface
Signal
name
Pin No. Terminal
No.
RDA- 1 13 B(+)
RDB+ 2 14 A(-)
SDA- 3
FG 5
Terminal block Terminal block
Connect 120 Ω (1/2 W) terminating resistance
between B(+) and A(-) of the Digital Temperature
Controller that is connected at the end of the
network.
(E5CD)
Signal
name
RS-485
interface
For information on the connector configurations and pin assignments of the other models,
7．Serial Communications Connection Procedure
10
Setup
Set up the Digital Temperature Controller.
Set parameters for the Digital Temperature
Controller.
7.3. Controller Setup
Set up the Controller.
Set the hardware switches on the Serial
Communications Unit and connect the cables .
Importing the Project File
Start Sysmac Studio and import the project f i le.
Check the parameters of the Serial
on the project data, and build the project programs.
Go online with Sysmac Studio and transfer t he
Transfer the setting data of the Serial
Communications Unit.
Check
Start the send/receive processing and confirm t hat
Check that correct data is written to the variables of
the Controller in Sysmac Studio.
7. Serial Communications Connection Procedure
This section describes the procedures for connecting the Controller to the Digital Temperature
Controller via serial communications . The procedures f or setting up the Controller and the
Digital Temperature Controller in this guide are based on the f actory default settings.
For the initialization, refer to Section 8. Initialization Method.
Work Flow 7.1.
Take the following steps to connect the Controller and the Digital Temperature Controller via
serial communications and to send or receive a message.
7.2. Digital Temperature Controller
↓
7.2.1. Parameter Settings
↓
↓
7.3.1. Hardware Settings
↓
7.3.2. Starting Sysmac Studio and
↓
7.3.3. Checking the Parameters and
Building Programs
↓
7.3.4. Going Online and Transferring
the Project Data
Communications Unit, execute the program check
project data to the Controller.
↓
7.3.5. Transferring the Unit Settings
↓
7.4. Serial Communication Status
↓
7.4.1. Checking Received Data
serial communications performs normall y.
7．Serial Communications Connection Procedure
11
1
manuals.
2
(Down) Key
3
4
Serial cable
Digital Temperature Controller Setup 7.2.
Set up the Digital Temperature Controller.
7.2.1. Parameter Settings
Set parameters for the Digital T emperature Controller.
Connect the power supply and a
serial cable to the terminal block
located on the back of Digital
Temperature Controller.
*Only the parameters in
Communications Setting Level
are described in this guide.
If you use the parameters in
Adjustment Level that is
specific to each of the models,
refer to their respective
(RS-485)
Check the positions of each of
the keys, No.1 and No. 2
displays and Operation
indicators.
In this guide, the keys are
described as follows:
L (Level) Key
M (Mode) Key
U (Up) Key
D
Turn ON Digital Temperature
Controller.
The current temperature is
displayed on No. 1 display once
Digital Temperature Controller is
turned ON. (Operation Level)
Press the L (Level) Key for at
least 3 seconds.
L (Level) Key for at least 3 seconds
7．Serial Communications Connection Procedure
12
"in-t" (Initial Setting Level) is
5
displayed on No. 1 display.
Press the L (Level) Key again
for less than 1 second.
The display changes to
6
Communications Setting Level.
"psel" (Protocol Setting) and
"cwf" (CompoWay/F) are
displayed on No. 1 and No. 2
displays, respectively.
*If the setting value is different,
press the U (Up) or D (Down)
Key to change the parameter.
Press the M (Mode) Key.
"u-no" (Communications Unit
7
No.) is displayed.
Check that Communications
Unit No. is 1.
*If the setting value is different,
change it in the same way as
step 6.
Press the M (Mode) Key.
"bps" (Communications Baud
8
Rate) is displayed.
Check that Communications
Baud Rate is 9.6 kbps.
*If the setting value is different,
change it in the same way as
step 6.
Press the M (Mode) Key.
L (Level) Key
< Setting value>
CWF / Mod
(default: CWF)
CWF: CompoWay/F
Mod: Modbus-RTU
M (Mode) Key
<Setting value>
0 to 99 (default: 1)
M (Mode) Key
<Setting value>
9.6, 19.2, 38.4 or
57.6 kbps
(default: 9.6)
M (Mode) Key
7．Serial Communications Connection Procedure
13
"len" (Communications Data
9
Length) is displayed.
Check that Communications
Data Length is 7 bits.
*If the setting value is different,
change it in the same way as
step 6.
Press the M (Mode) Key.
"sbit" (Communications Stop
10
Bits) is displayed.
Check that Communications
Stop Bits is 2 bits.
*If the setting value is different,
change it in the same way as
step 6.
Press the M (Mode) Key.
"prty" (Communications Parity)
11
is displayed.
Check that Communications
Parity is EVEN.
*If the setting value is different,
change it in the same way as
step 6.
Press the M (Mode) Key.
"sdwt" (Send Data Wait Time) is
12
displayed.
Check that Send Data Wait Time
is 20.
*If the setting value is different,
change it in the same way as
step 6.
Press the L (Level) Key for less
than 1 second.
<Setting value>
7 or 8 bits (default: 7)
M (Mode) Key
<Setting value>
1 or 2 bits (default: 2)
M (Mode) Key
<Setting value>
NONE, EVEN or ODD
(default: EVEN)
M (Mode) Key
<Setting value>
0 to 99 ms (default: 20)
L (Level) Key.
7．Serial Communications Connection Procedure
14
15
"in-t" ((Initial Setting Level) is
13
displayed.
Press the L (Level) Key for at
least 1 second.
The display returns to Operation
14
Level as shown in step 4.
Turn OFF Digital Temperature
Controller.
L (Level) Key for at least 1 second
7．Serial Communications Connection Procedure
15
be applicable.
2
3
4
5
・TERM
・WIRE (2-wire or 4-wire switch)
2: 2-wire, 4: 4-wire
Controller Setup 7.3.
Set up the Controller.
7.3.1. Hardware Settings
Set the hardware switches on the Serial Communications Unit and connect the cables.
Precautions for Correct Use
Make sure that the power supply is OFF when you set up.
If it is ON, the settings described in the following steps and subsequent proc edures may not
Make sure that Controller is
1
powered OFF.
Check the positions of the
hardware switches and Port 1
on the front panel of Serial
Communications Unit by
referring to the figure on the
right.
Set Unit number switch to 0.
*The unit number is set to 0 as
the factory default setting.
Set Terminating resistance
ON/OFF switch to ON.
(Terminating resistance ON)
Set 2-wire or 4-wire switch to 2.
(2-wire)
(Terminating resistance ON/OFF switch)
OFF: Terminating resistance OFF
ON: Terminating resistance ON
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