Magnescale MG80-EC User manual

MG80-EC
Operating Manual
EtherCAT Interface Module
Read all the instructions in the manual carefully before use and strictly follow them.
Keep the manual for future references.

MG80-EC

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Contents
Contents ................................................................................................................................... 1
1. Introduction...................................................................................................................... 4
Features of EtherCAT.................................................................................................. 4
Communications Types of EtherCAT ........................................................................ 4
Configuration Elements of EtherCAT Network........................................................ 5
2. Basic Information............................................................................................................ 7
Equipment Used .......................................................................................................... 7
System configuration.................................................................................................. 8
3. Setting ................................................................................................................................ 9
Download of setting application and ESI file .................................................................. 9
About I/O data............................................................................................................. 9
Setting various parameters ....................................................................................... 9
3.3.1. Connection ............................................................................................................ 9
3.3.2. Setting method....................................................................................................11
3.3.3. Restart MG80-EC................................................................................................ 17
3.3.4. Starting EtherCAT Communications................................................................ 17
4. Specifications.................................................................................................................. 18
Interface specifications ............................................................................................ 18
LED indicator.............................................................................................................. 19
5. Function ........................................................................................................................... 21
Functions list.............................................................................................................. 21
Frame definition ........................................................................................................ 22
Detail of function....................................................................................................... 23
5.3.1. Peak hold............................................................................................................. 23
5.3.2. Pause.................................................................................................................... 24
5.3.3. Start ..................................................................................................................... 24
5.3.4. Reset .................................................................................................................... 24
5.3.5. Preset................................................................................................................... 24
5.3.6. Master preset...................................................................................................... 25
5.3.7. Comparator ......................................................................................................... 26
5.3.8. Add/Sub function ............................................................................................... 26
5.3.9. I/O module control ............................................................................................ 27
6. EtherCAT communication............................................................................................ 29
EtherCAT Communications Specifications............................................................. 29
Overview of EtherCAT .............................................................................................. 30

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Communications Types of EtherCAT ...................................................................... 30
EtherCAT Communications Protocol (CoE) ........................................................... 31
Process Data Objects (PDO).................................................................................... 32
Service Data Object (SDO)...................................................................................... 32
EtherCAT Master Unit - Slave Unit Communications........................................... 33
EtherCAT Communications State Transitions ....................................................... 34
Emergency Messages ............................................................................................... 35
7. Details of Measurement Data .................................................................................... 36
Frame Measurement Value...................................................................................... 37
Counter Module Status............................................................................................. 37
Frame Comparator Result........................................................................................ 38
Frame Comparator Group Number ........................................................................ 38
Frame Output Type ................................................................................................... 39
I/O Module Input Signal........................................................................................... 39
I/O Module Output Signal ........................................................................................ 39
8. Appendix .......................................................................................................................... 40
Operation Parameters .............................................................................................. 40
Object Dictionary Structure..................................................................................... 43
Details of Object Dictionary..................................................................................... 46
8.3.1. Details of Communication Object Dictionary................................................. 48
8.3.2. Details of PDO Mapping Objects ...................................................................... 51
8.3.3. Sync Manager Communication Objects.......................................................... 65
8.3.4. Manufacturer Specific Objects ......................................................................... 67

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Trademarks
EtherCAT®is registered trademark and patented technology, licensed by Beckhoff Automation
GmbH, Germany.
Microsoft®Windows®is the registered trademark of Microsoft Corporation.
Other system names, product names, and service names described in this manual are registered
trademarks or trademarks of the corresponding manufacturers.
Note that marks such as TM, ©, and ®are not noted in the text.
In no event will Magnescale Co., Ltd. or its suppliers be liable to you for
any consequential or inconsequential damages, including any lost profits
or lost savings or any claims made by a third party arising out of use of
the hardware system and its software described in this manual.
The specification of the product and its software may be changed without
prior notice.
This software has been confirmed to operate with Windows 10 version
20H2.
Operation is not guaranteed with regards to future Windows 10 updates.

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1. Introduction
EtherCAT (Ethernet Control Automation Technology) is a high-performance industrial
network system based on Ethernet system and realizes faster and more efficient
communications.
Each node achieves a short communications cycle time by transmitting Ethernet
frames at high speed.
Furthermore, even though EtherCAT is a unique protocol, it utilizes standard Ethernet
technology for the physical layer, which provides excellent general-purpose
applicability such as the ability to use Ethernet cables. This enables to fully utilize the
effectiveness of EtherCAT not only in large control systems that require high
processing speeds and system integrity, but also in small and medium control
systems.
Features of EtherCAT
Extremely high-speed communications with speed of 100 Mbps
It dramatically shortens the I/O response time from generation of input signals to
transmission of output signals. By fully utilizing the optimized Ethernet frame
bandwidth to transfer data using a high-speed repeat method, it is possible to
efficiently transmit a wide variety of data.
Extremely High Compatibility with Ethernet
EtherCAT is an open network with extremely high compatibility with conventional
Ethernet systems.
Communications Types of EtherCAT
EtherCAT provides the following two types of communication functions.
Process data communications functions (PDO communications)
This communication function is used to transfer process data in real time in a fixed-
cycle.
By mapping logical process data space to each node by the EtherCAT master unit, it
achieves fixed-cycle communications among the EtherCAT master unit and slave units.

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Mailbox communications functions (SDO communications)
It refers to message communications.
At any timing, the EtherCAT master unit transmits commands to slave units and the
slave units return responses to the EtherCAT master unit.
It performs the following data communications:
• Read and write process data
• Make slave unit setting
• Monitor slave unit state
PDO communications constantly update the data every communication cycle on
EtherCAT, and SDO communications are processed in between those updates.
Configuration Elements of EtherCAT Network
The overview of each configuration device is as follows:
EtherCAT master unit
Administers the EtherCAT network, monitors the state of slave units, exchanges I/O
data with slave units.
EtherCAT slave unit
Outputs data received from the EtherCAT master unit through the EtherCAT network,
or sends input data to the EtherCAT master unit through the EtherCAT network.
There are Digital I/O slave unit and Analog I/O slave unit. The MG80-EC is also
classified as a EtherCAT slave unit.
Configuration tool
It is a PC software for making setting of the EtherCAT network and each slave unit.
It can be used either by connecting to the EtherCAT master unit or as a substitute of
the EtherCAT master unit.
Communications cable
Uses cables of Ethernet category 5 (100BASE-TX) or higher, with double-shield
(aluminum tape and braided shielding), which are connected straight.
ESI (EtherCAT slave information) file
Describes information specific to EtherCAT Main modules in XML format unit.
You can make various setting such as the allocate slave unit process data by loading
file.

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Unit power supply
Provides power for communications of each slave unit and internal operations.
Separate them from the I/O power supply when wiring.
I/O power supply
Provides power for input/output operations of external devices connected to slave
units.
Separate from unit power supply when wiring.

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2. Basic Information
The MG80-EC is a communications slave unit that processes EtherCAT
communications between measuring units and a PLC to monitor the measured
values, write parameters, and operate the measuring units.
The PDOs in EtherCAT communications can be used to monitor the measurement
values without any programming. The SDOs provide the ability to read and write
to any specified parameter.
Equipment Used
The devices used when configuring a slave-side system with the MG80-EC are
shown below.
Name
Description
Image
MG80-EC EtherCAT interface unit
Main module
MG80-CM Counter module
DK800S
series
Measuring unit
DK805S/DK812S/DK830S
DK series Measuring unit
DK10/25/50/100
DT series
(via MT13)
Measuring unit
DT12/32/512

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System configuration
The MG80-EC can be connected to a counter module MG80-CM for connecting a
measuring unit, and an I/O module LZ80-K1/K2 that can control the operation and
outputs of the constituent units using external signals.
• Connect the measuring unit DK series to the MG80-CM.
• Measuring unit numbers are assigned automatically starting from 1 in order from
the unit closest to the MG80-EC.
• For EtherNet/IP or Ethernet connection, prepare a shielded cable with a RJ-45
(8P8C) connector (straight connection).
Node address
SW=0×01
Node address
SW=0×02
Node address
SW=0×03
Node address
SW=0×04
EtherCAT or
Ethernet cable,
max. 20 m
(*) : Up to 16 MG80-CM can be
connected to each MG80-EC.
Upto two LZ80-K modules can
be connected within the unit.
LZ80-K1/K2
PC/PLC
Unit
EtherCAT
Interface Module
MG80-EC
Counter Module
MG80-CM