Atlas Copco Elektronikon Mk5 User manual

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User guide
1. General Information
Elektronikon Mk5 Gateway Module
Document Number : 9845 0187 01
Document Edition : 15
Concerning : Units with Elektronikon Mk5 gateway module
Preliminary Operations : –
Safety Instructions : General
Persons Required : 1
Special Tools : –
Consumables : –
2. Document Overview
This document covers the following subjects:
1. General Information .....................................................................................................................................................1
2. Document Overview.....................................................................................................................................................1
3. Safety first ....................................................................................................................................................................3
4. Copyright Notice...........................................................................................................................................................4
5. Document Information and History...............................................................................................................................4
6. Safety Precautions .......................................................................................................................................................5
6.1. Safety icons .............................................................................................................................................................5
6.2. Safety precautions during installation ......................................................................................................................5
6.3. Safety precautions during operation ........................................................................................................................6
6.4. Safety precautions during maintenance or repair ....................................................................................................7
7. Preface.........................................................................................................................................................................8
8. Physical Set-up ............................................................................................................................................................8
8.1. Modbus and/or Profibus in the network ...................................................................................................................8
8.2. Gateway module......................................................................................................................................................9
8.3. Gateway module......................................................................................................................................................9
9. Software installation and configuration.......................................................................................................................10
9.1. Display menu folder structure ................................................................................................................................10
9.1.1. Mainscreen folder [ ].......................................................................................................................................10
9.1.2. General Settings folder [ GE ]............................................................................................................................10
9.1.3. Compressors folder [ CP ] .................................................................................................................................15
10. Gateway Display Description .....................................................................................................................................16
10.1. Icons ......................................................................................................................................................................16
10.2. Leds.......................................................................................................................................................................16
10.3. Keyboard ...............................................................................................................................................................16
10.4. Passwords / Access Codes ...................................................................................................................................17

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11. Modbus Protocol Implementation...............................................................................................................................18
11.1. Supported Modbus specification............................................................................................................................18
11.2. Supported Modbus functions .................................................................................................................................18
11.3. Function code - data field ......................................................................................................................................18
11.4. Exception codes ....................................................................................................................................................19
11.5. Examples...............................................................................................................................................................19
11.5.1. Illegal Data Address......................................................................................................................................19
11.5.2. Outlet Pressure and Outlet Pressure Status .................................................................................................19
11.5.3. Change the active pressure band .................................................................................................................20
11.5.4. Start the machine..........................................................................................................................................20
12. Profibus Protocol Implementation ..............................................................................................................................21
12.1. Protocol Specification ............................................................................................................................................21
12.2. Master-slave concept.............................................................................................................................................21
12.3. Buffer structure ......................................................................................................................................................21
12.2.1. Header ..........................................................................................................................................................21
12.2.2. Data record ...................................................................................................................................................23
12.2.3. Node Address ...............................................................................................................................................23
12.4. Exception codes ....................................................................................................................................................23
12.5. Examples...............................................................................................................................................................24
12.4.1. Illegal Data Address......................................................................................................................................24
12.4.2. Outlet Pressure and Outlet Pressure Status .................................................................................................24
12.4.3. Change the active pressure band .................................................................................................................24
12.4.4. Start the machine..........................................................................................................................................24

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3. Safety first

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4. Copyright Notice
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and drawings.
5. Document Information and History
Edition Date Description Author
00 29/11/2010 First Edition CTE-KD
01 22/03/2011 Text update by Tine Lefebvre CTE-KD
02 10/05/2011 Renamed ES devices to CRC ES CTE-KD
03 23/08/2011 Customer Password / Access Codes CTE-KD
04 23/08/2011 Update according to remarks from Guido Willems CTE-KD
05 01/09/2011 Added examples for Modbus and Profibus CTE-KD
06 12/09/2011 Update according to remarks from SGS CTE-KD
07 11/04/2012 - Change in the number of machines
- Machine parameters
CTE-KD
08 24/05/2012 - Machine parameters
- Additional Exception Codes
CTE-KD
09 28/06/2012 - Update #parameters for Profibus protocol
- Update Profibus examples
- Icons
CTE-KD
10 14/08/2012 Updated Profibus Examples CTE-KD
11 31/08/2012 - Update CAN folder structure
- Updated Icons section
CTE-KD
12 01/02/2013 - Serial Line Connection
- Profibus Protocol Specification
- Update chapter “The physical set-up”
CTE-KD
13 19/07/2013 Update ‘Compressor Folder [ CP ]’ CTE-KD
14 13/08/2013 Update reference to CAN cabling instruction CTE-KD
15 13/08/2013 Update according to remarks from VTF-GW CTE-KD

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6. Safety Precautions
6.1. Safety icons
Danger for life
Warning
Important note
6.2. Safety precautions during installation
All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance
of the normal caution and care required for installation, operation, maintenance and repair, even if not
expressly stated, will be disclaimed by the manufacturer.
General precautions
1. The operator must employ safe working practices and observe all related work safety requirements and regulations.
2. If any of the following statements does not comply with the applicable legislation, the stricter of the two shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorised, trained, specialised
personnel.
4. Before carrying out any maintenance, repair work, adjustment or any other non-routine checks, stop the device. In
addition, the power isolating switch must be opened and locked.
Precautions during installation
1. Place the device where the ambient air is as cool and clean as possible.
2. During installation or any other intervention on one of the connected machines, the machine must be stopped, de-
energized and the isolating switch opened and locked before any maintenance or repair. As a further safeguard,
persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one
checking or working on the machine. To this end, a suitable notice shall be affixed to the start equipment.
3. The electrical connections must correspond to the local codes. The device must be earthed and protected against short
circuits by fuses in all phases. A lockable power isolating switch must be installed near the device.
4. For machines controlled by a central control system, a sign stating "This machine may start without warning" must be
affixed near the instrument panel.
5. In multiple compressor systems, manual valves must be installed to isolate each compressor. Non return valves (check
valves) must not be relied upon for isolating pressure systems.
6. Never remove or tamper with the safety devices.
Also consult following safety precautions: Safety precautions during operation and Safety
precautions during maintenance or repair.
These precautions apply to electrical devices.
For precautions applying to the connected equipment consult the relevant instruction book.
Some precautions are general and cover several machine types and equipment; hence some
statements may not apply to your device.

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6.3. Safety precautions during operation
General precautions
1. The operator must employ safe working practices and observe all related local work safety requirements and
regulations.
2. If any of the following statements does not comply with local legislation, the stricter of the two shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorized, trained, specialized
personnel.
4. Before carrying out any maintenance, repair work, adjustment or any other non-routine checks, stop the device. In
addition, the power isolating switch must be opened and locked.
Precautions during operation
1. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one
checking or working on the machine. To this end, a suitable notice shall be affixed to the remote start equipment.
2. Never operate the device in the presence of flammable or toxic fumes, vapors or particles.
3. Never operate the machine below or in excess of its limit ratings.
4. Keep all bodywork doors and panels closed during operation. The doors may be opened for short periods only, e.g. to
carry out routine checks. Wear ear protectors when opening a door if applicable.
5. People staying in environments or rooms where the sound pressure level reaches or exceeds 90 dB(A) shall wear ear
protectors.
6. Periodically check that:
•All guards are in place and securely fastened
•All hoses and/or pipes inside the machine are in good condition, secure and not rubbing
•There are no leaks
•All fasteners are tight
•All electrical leads are secure and in good order
•Safety valves and other pressure-relief devices are not obstructed by dirt or paint
•Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in good repair, free of wear or
abuse
7. Never remove or tamper with the safety devices.
Also consult following safety precautions: Safety precautions during installation and Safety
precautions during maintenance or repair.
These precautions apply to electrical devices.
For precautions applying to the connected equipment consult the relevant instruction book.
Some precautions are general and cover several machine types and equipment; hence some
statements may not apply to your device.

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6.4. Safety precautions during maintenance or repair
General precautions
1. The operator must employ safe working practices and observe all related local work safety requirements and
regulations.
2. If any of the following statements does not comply with local legislation, the stricter of the two shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorized, trained, specialized
personnel.
4. Before carrying out any maintenance, repair work, adjustment or any other non-routine checks, stop the device. In
addition, the power isolating switch must be opened and locked.
Precautions during maintenance or repair
1. Use only the correct tools for maintenance and repair work.
2. Use only genuine spare parts.
3. A warning sign bearing a legend such as "work in progress; do not start" shall be attached to the starting equipment,
including all remote start equipment.
4. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no one
checking or working on the machine. To this end, a suitable notice shall be affixed to the remote start equipment.
5. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions against toxic vapors
of cleaning liquids.
6. Scrupulously observe cleanliness during maintenance and repair. Keep dirt away by covering the parts and exposed
openings with a clean cloth, paper or tape.
7. Never use a light source with open flame for inspecting the interior of the device.
8. All regulating and safety devices shall be maintained with due care to ensure that they function properly. They may not
be put out of action.
9. Before clearing the device for use after maintenance or repair, check that operating pressures, temperatures and time
settings are correct. Check that all control and shut-down devices are fitted and that they function correctly.
10. Never use caustic solvents which can damage materials of the air net.
Also consult following safety precautions: Safety precautions during installation and Safety
precautions during operation.
These precautions apply to electrical devices.
For precautions applying to the connected equipment consult the relevant instruction book.
Some precautions are general and cover several machine types and equipment; hence some
statements may not apply to your device.
Units and/or used parts should be disposed of in an environmentally friendly and safe manner
and in line with the local recommendations and legislation.

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7. Preface
This document describes how to implement a Modbus and/or Profibus connection to the Elektronikon MkIV and/or
Elektronikon Mk5 compressor controller network.
8. Physical Set-up
8.1. Modbus and/or Profibus in the network
In the Elektronikon system, all compressors in an installation can be connected by a data and/or control network. This is
done according the Compressor Network Cabling instruction (LN: 9820 3582 00, GBP: 2946 1361 00). This instruction
explains what connectors and cables should be used to interconnect the different compressors/controllers in the network.
Basically this is a CAN-based network.
In order to set up a Modbus and/or Profibus connection to one or several of the compressors in this network, a special
module has to be inserted in this network.
This will behave as a Modbus/Profibus proxy that allows access to all compressors in the network, whereby each
compressor has its own Modbus address (proxy concept).
The module will as well behave as a bridge to access the data stored in the CAN node’s Object Dictionary. In order to work
correctly, this bridge module has to be assigned a slave node ID. From the master’s point of view, this bridge acts as a way
to access information of the CANBUS network.
Profibus: 15
Profibus
Modbus
NOTE: the profibus manufacturer of the module must create a so named “Electronic Datasheet” or GSD file that declares the dimensions
and the type of the exchanged datas. This file is public information necessary for Profibus users to interface with the bridge module.

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8.2. Gateway module
For the Modbus and/or Profibus connection a so-called Gateway module has to be used. This is a general purpose serial
communication module. By downloading the correct software, it will perform the proxy and/or bridge function.
The following connections will be used:
•6x36 : to connect a 24Vac power supply
•6x20 : to connect to the compressor network (CAN)
•6x25 : to connect to a PC for downloading the application into the module
•6x22 : to connect the RS485 Modbus line
•6x37: to connect the Profibus line
The other 6x38 connector is not used in this application.
8.3. Gateway module
For the Modbus and/or Profibus connection, the Gateway module supports RS485A, with the following pin-layout as
specified.
9 pin Female Sub-D Connector
Pin Function
1 GND
2 Reserved
3 B-signal
4 Reserved
5 GND (galvanic isolated)
6 +5V (galvanic isolated)
7 Reserved
8 A-signal
9 Reserved

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9. Software installation and configuration
Before the module can be used for a Modbus and/or Profibus connection, the correct software application and settings must
be downloaded. This can be done by AC Service personnel using AC Speci5.
Once the software has been installed, configuration can also be performed by qualified Atlas Copco personnel using AC
Modi5.
Please refer to the Address Mapping document, available for each individual machine to be attached, to get the supported
registers and their meanings.
9.1. Display menu folder structure
Once the module is downloaded, the default settings are found on the module. It is now important to set up the module
correctly at your personal wishes.
The display menu structure is built up as follows:
Each folder has one ore more subfolders which can be accessed using the Enter key on the keyboard. Exiting a folder can
be performed using the Cancel key. Browsing through the different folders is done by pressing the Left and Right button.
Once a setting is reached in a specific folder, the current settings value will be displayed. By pressing Cancel the current
menu will be exited. Pressing Enter however will allow the user to alter the settings (the value will start blinking) by clicking
the Up or Down button. At this point the user will be able to undo the current settings change by clicking Cancel. In this
case the current settings value will be shown again. However, by clicking Enter the settings value will be stored and the
module will behave accordingly.
9.1.1. Mainscreen folder [ ]
The Mainscreen folder has no subfolders and is only used to display general information. The module will always return to
this folder in case no button is pressed over a certain period.
9.1.2. General Settings folder [ GE ]
The General Settings folder consists of 4 subfolders which will be explained in the next paragraphs.