THOMSON MEC 310 - APLLICATION NOTES EXTERNAL I-O... Supplement

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MEC 310
APPLICATION NOTES
FEATURE (EXP)
External I/O modules
r. 0524B
PM0104 Rev 0 09/08/20

This description of options covers the following products:
MEC 310 SW version 1.2X.X

MEC 310 APPLICATION NOTES - External I/O Modules
PM104 R0 09/08/20 THOMSON TECHNOLOGY
Table of Contents
1. WARNINGS AND LEGAL INFORMATION ....................................................................................1
LEGAL INFORMATION AND RESPONSIBILITY ..................................................................................................1
ELECTROSTATIC DISCHARGE AWARENESS ....................................................................................................1
SAFETY ISSUES .............................................................................................................................................1
FACTORY SETTINGS ......................................................................................................................................1
DEFINITIONS .................................................................................................................................................1
2. DESCRIPTION OF OPTION ..............................................................................................................2
FEATURE EXP ..............................................................................................................................................2
MEC 310 INTERFACE ...................................................................................................................................2
INSTALLATION OF BECKHOFF CONTROLLER (BUS COUPLER).........................................................................3
3. FUNCTIONAL DESCRIPTION ..........................................................................................................5
SUPPORTED MODULES ..................................................................................................................................5
FUNCTIONAL CHECK OF EXTERNAL I/O MODULES ........................................................................................6
4. PARAMETER LIST..............................................................................................................................9
COMMUNICATION SETUP...............................................................................................................................9
EXTERNAL I/O SETUP .................................................................................................................................10
5. FAULT FINDING .................................................................................................................................12
DIAGNOSTIC LEDS.....................................................................................................................................13

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1. Warnings and legal information
Legal information and responsibility
Thomson Technology takes no responsibility for installation or operation of the generator set. If there
is any doubt about how to install or operate the engine controlled by the unit, the company responsible
for the installation or the operation of the set must be contacted.
Electrostatic discharge awareness
Sufficient care must be taken to protect the terminals against static discharges during the
installation. Once the unit is installed and connected, these precautions are no longer necessary.
Safety issues
Installing the unit implies work with dangerous currents and voltages. Therefore, the installation should
only be carried out by authorised personnel who understand the risks involved in working with live
electrical equipment.
Factory settings
The unit is delivered with certain factory settings. Given the fact that these settings are based on
average values, they are not necessarily the correct settings for matching the individual engine.
Thus precautions must be taken to check the settings before running the engine.
Definitions
Throughout this document a number of notes and warnings will be presented. To ensure that these
are noticed, they will be highlighted in order to separate them from the general text.
Notes
Warning
The notes provide general information, which will be helpful for the reader to
bear in mind.
The warnings indicate a potential
ly dangerous situation, which could result in
death, personal injury or damaged equipment, if certain guide
lines are not
followed.
Be aware of the hazardous live
currents and voltages. Do not touch any AC
measurement inputs as this could lead to injury or death.
The units are not to be opened by unauthorized personnel. If opened anyway, the
warranty will be lost.

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2. Description of option
Feature EXP
EXP is a CANbus based serial interface for external I/O controllers. This option gives the possibility
to add more inputs and outputs to MEX 310 controllers via the CANbus.
MEC 310 controllers support the CANopen protocol. This protocol is based on the CANopen
Application Layer and Communication Profile Specification CiA Draft Standard 301 Version 4.02. It
is not the purpose of this document to describe all the functionalities of the CANopen
communication. The CANopen is implemented and runs according to the CANopen standards and
needs no special attention from the user.
MEC 310 interface
Terminal description
The CAN #2 terminals 57(H) and 59(L) are also used for EAP 300 (see feature EAP 300).
Terminals Function Description
57 CAN-H
58 CAN-GND
59 CAN-L
CAN #2: Terminals for CAN
communication
Please use the website http://www.can-
cia.com to download a detailed
explanation of the CANopen description.
Wiring details: Please refer to the document ‘Installation Instructions and
Reference Handbook’.

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Installation of Beckhoff controller (bus coupler)
The following is a step-by-step guide to set up the communication between the MEC 310 unit and
the Beckhoff modules.
Beckhoff controller setup
1. Set the Baud rate to ‘AUTO’.
2. Set the Node ID to a value between 10 and 64.
3. Connect the required I/O modules to the controller.
4. Mount the ‘End Bus Terminal’: KL9010 module.
CANbus wiring
5. Disconnect power to the MEC 310 and the Beckhoff controller.
6. Connect the CANbus wires to the Beckhoff controller according to the ‘Installation
Instructions’.
MEC 310 unit
7. Connect power to the MEC 310 unit and the Beckhoff controller.
8. Set CAN1 type (menu 7971 = H8.2 or menu 7981 = H8.8) to 'Beckhoff comm.'.
9. Set the Baud rate (default: 125kbit/s).
10. Set the Node ID (menu 7973/7983) to the same value as selected on the Beckhoff
controller.
11. Communication between the MEC 310 unit and the Beckhoff controller is now established.
MEC 310: Please refer to the document ‘Installation Instructions and
Reference Handbook’.
MEC 310: Menu 7971 and 7981 are not available.
MEC 310: Menu 7973 is not available.
Documentation regarding Beckhoff modules can be found at www.beckhoff.com.
MEC 310: The Baud rate is fixed at 50kbit/s.
Communication fault: In case any LEDs on the Beckhoff controller are
flashing continuously for more than 5s, please refer to the chapter ‘Fault
finding’ in this document.

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12. To see the available external I/Os, retrieve the parameters from the MEC 310 unit with the
TPS 300 software.
13. Click on ‘External I/O’ in the TPS 300 software to see or change settings for external I/O
modules.

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3. Functional description
Supported modules
The MEC 310 supports communication with the Beckhoff CANopen I/O modules. The following
CANopen modules are available from Thomson Technology:
Controller (bus coupler) – MANDATORY COMPONENT
Type Numbers of I/Os supported by MEC 310
EXP-BM (BK5150) 8 analogue inputs, 8 analogue outputs, 16 digital inputs and 16
digital outputs
Analogue Input Modules – Order as required
EXP-AI4 (KL3444) 4-ch. analog input terminals 0…20 mA
Digital Input Modules – Order as required
EXP-I4 (KL1104) 4-ch. digital input terminals 24 V DC
EXP-I8 (KL1408) 8-ch. digital input terminals 24 V DC
EXP-I16 (KM1002) 16-ch. digital input 24 V DC
Digital Output Modules – Order as required
EXP-O4 (KL2114) 4-ch. digital output terminals 24 V DC/0.5A
EXP-O8 (KL2408) 8-ch. digital output terminals 24 V DC/0.5A
EXP-O16 (KM2002) 16-ch. digital output 24 V DC/0.5A
End Bus Terminal – MANDATORY COMPONENT
EXP-EBT (KL9010) End bus terminal
Detailed specification of the Beckhoff modules can be found at the website
www.beckhoff.com.
BK5150
MANDATORY
KL1104 KL1408 KM1002 KL2114 KL2408 KM2002 KL3444
ORDER AS REQUIRED
LK9010
MANDATORY
Contact Thomson Technology for information on other modules.

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Functional check of external I/O modules
Alarm messages in display
Alarm message Description
Ext. I/O unk. module The module used is not supported by the MEC 310 unit.
Ext. I/O new setup If modules are changed or have changed place in the row of
modules, this error message will be active. Can be removed by reset
in menu 7974 ‘Reset’.
Module check
The module check can only take place using the TPS 300 software.
Modules are presented in the order by which they are mounted, counting from the CANbus controller
side.
External I/Os will only be shown in the TPS 300 software if they are present.
The result of the check can be read in status channels 12950-12983.
The Beckhoff module transmits a status message to the unit. This message is a HEX value for digital
I/O units and decimal for controllers/analogue I/O units.

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Digital I/O
1. digit: 8 for digital
2. digit: Number of input/output (2, 4 or 8)
3. digit: Not used (0)
4. digit: Input [1] or output [2]
In the TPS 300 software, all values are presented as decimal values, so the HEX values for the
digital I/O modules are translated as follows:
Inputs:
0x8201h = -32255d
0x8401h = -31743d
0x8801h = -30719d
Outputs:
0x8202h = -32254d
0x8402h = -31742d
0x8802h = -30718d