Thomson MEC 310 APPLICATION NOTES FEATURE (EXP) External I/O modules

MEC 310

APPLICATION NOTES

FEATURE (EXP)

External I/O modules

r. 0524B

PM0104 Rev 0 09/08/20

9087A – 198th Street, Langley, BC Canada V1M 3B1  Telephone [phone]

Telefax [phone]  E-Mail: [e-mail]  www.thomsontechnology.com

This description of options covers the following products:

MEC 310 SW version 1.2X.X

Table of Contents

MEC 310 APPLICATION NOTES - External I/O Modules

1. WARNINGS AND LEGAL INFORMATION .................................................................................... 1

EGAL INFORMATION AND RESPONSIBILITY

L

LECTROSTATIC DISCHARGE AWARENESS

E

AFETY ISSUES

S

ACTORY SETTINGS

F

EFINITIONS

D

2. DESCRIPTION OF OPTION .............................................................................................................. 2

EATURE

F
MEC 310

NSTALLATION OF BECKHOFF CONTROLLER (BUS COUPLER

I

3. FUNCTIONAL DESCRIPTION .......................................................................................................... 5

UPPORTED MODULES

S

UNCTIONAL CHECK OF EXTERNAL

F

4. PARAMETER LIST.............................................................................................................................. 9

OMMUNICATION SETUP

C

XTERNAL

E

5. FAULT FINDING ................................................................................................................................. 12

IAGNOSTIC

D

.............................................................................................................................................1

...................................................................................................................................... 1

.................................................................................................................................................1

EXP .............................................................................................................................................. 2

INTERFACE

I/O

LEDS..................................................................................................................................... 13

................................................................................................................................... 2

.................................................................................................................................. 5

I/O

............................................................................................................................... 9

SETUP

................................................................................................................................. 10

.................................................................................................. 1

....................................................................................................1

).........................................................................3

MODULES

........................................................................................ 6

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MEC 310 APPLICATION NOTES - External I/O Modules

The notes provide general information, which will be helpful for the reader to

ly dangerous situation, which could result in

lines are not

currents and voltages. Do not touch any AC

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.

The units are not to be opened by unauthorized personnel. If opened anyway, the

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.

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.

Be aware of the hazardous live
measurement inputs as this could lead to injury or death.

warranty will be lost.

Safety issues

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

bear in mind.

The warnings indicate a potential
death, personal injury or damaged equipment, if certain guide
followed.

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MEC 310 APPLICATION NOTES - External I/O Modules

cia.com to download a detailed

Wiring details: Please refer to the document ‘Installation Instructions and

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.

Please use the website http://www.can­explanation of the CANopen description.

MEC 310 interface

Reference Handbook’.

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

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MEC 310 APPLICATION NOTES - External I/O Modules

MEC 310: Please refer to the document ‘Installation Instructions and

Communication fault: In case any LEDs on the Beckhoff controller are

flashing continuously for more than 5s, please refer to the chapter ‘Fault

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

CANbus wiring

Documentation regarding Beckhoff modules can be found at www.beckhoff.com.

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.

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’.

Reference Handbook’.

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

11. Communication between the MEC 310 unit and the Beckhoff controller is now established.

MEC 310: Menu 7971 and 7981 are not available.

MEC 310: The Baud rate is fixed at 50kbit/s.

controller.

MEC 310: Menu 7973 is not available.

finding’ in this document.

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MEC 310 APPLICATION NOTES - External I/O Modules

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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MEC 310 APPLICATION NOTES - External I/O Modules

Detailed specification of the Beckhoff modules can be found at the website

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

Contact Thomson Technology for information on other modules.

www.beckhoff.com.

BK5150

MANDATORY

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KL1104 KL1408 KM1002 KL2114 KL2408 KM2002 KL3444

ORDER AS REQUIRED

LK9010

MANDATORY

MEC 310 APPLICATION NOTES - External I/O Modules

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

MEC 310 APPLICATION NOTES - External I/O Modules

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

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MEC 310 APPLICATION NOTES - External I/O Modules

The module check is only carried out when resetting the communication

Examples for digital I/O modules

Module Hex value Dec value

EXP-O4 (KL2114) 8402 -31742

EXP-O8 (KL2408) 8802 -30718

EXP-I16 (KM1002) 8201 -32255

EXP-I4 (KL1104) 8401 -31743

Analogue I/O

A 4-digit decimal value is presented.

This number represents the module version used.

Examples for analogue I/O modules

Module Value

EXP-AI4 (KL3444) 3204

(parameter 7974 or 7984).

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MEC 310 APPLICATION NOTES - External I/O Modules

uploaded again.

4. Parameter list

Communication setup

7940 CAN2 comm error

No. Setting Min.

setting

7941 CAN2 comm error Delay 2.0 s 600.0 s 10.0 s
7942 CAN2 comm error Relay output A Not used R0 (none)
7943 CAN2 comm error Relay output B Not used
7944 CAN2 comm error Enable OFF ON OFF

7980 CAN2

No. Setting Min.

setting

7981 CAN2 Type OFF

EAP-2
Beckhoff

7982 CAN2 Baud 50 k

125 k
250 k

7983 CAN2 ID 10 64 1
7984 CAN2 Reset NO YES NO

MEC 310: Menu 7981 and 7982 are not available.

Menu 7984 is for re-establishing communication after a fault/disconnection.

After changing type, the parameter list in the TPS 300 software must be

Max.
setting

Option
dependent

Max.
setting

Factory
setting

R0 (none)

Factory
setting

OFF

125 k

7950 KL320x config

No. Setting Type

7951 KL320x config Module 1
7952 KL320x config Module 2
7953 KL320x config Module 3
7954 KL320x config Module 4

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The above selections for KL3202/3204 cannot be changed.

After changing module type, the parameter list in the TPS 300 software must be
uploaded again.

PT100 (2/3-wire)
PT1000 (2/3-wire)
10-3200 ohm (2-wire)
10-1200 ohm (2-wire)

Factory
setting

PT100
(2/3-wire)

MEC 310 APPLICATION NOTES - External I/O Modules

The external analogue outputs are used as transducer outputs in menu 5820 to

External I/O setup

Analogue inputs

12000 Ext. an. in 1.1

No. Setting Min.

setting

12000 Ext. an. in 1.1

12010 Ext. an. in 1.2

No. Setting Min.

12010 Ext.an. in 1.2

Same order for settings 12030-12230.

Set point -20000 20000 10
Delay 2.0 s 600.0 s 10.0 s
Fail class MEC 310 unit dependent Warning
Relay output A Not used Not used
Relay output B Not used
Enable OFF ON OFF

setting

Set point -20000 20000 10
Delay 2.0 s 600.0 s 10.0 s
Fail class MEC 310 unit dependent Warning
Relay output A Not used Not used
Relay output B Not used
Enable OFF ON OFF

Max.
setting

Option
dependent

Max.
setting

Option
dependent

Factory
setting

Not used

Factory
setting

Not used

Analogue outputs

5970. Please refer to the description of option E+F.

MEC 310 does not support analogue outputs.

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MEC 310 APPLICATION NOTES - External I/O Modules

Digital inputs

12540 Ext. dig. in 1
No. Setting Min.

setting

12540 Ext. dig. in 1

Delay 2.0 s 600.0 s 10.0 s
Fail class MEC 310 unit dependent Warning
Relay output A Not used Not used
Relay output B Not used
Enable OFF ON OFF

Same order for settings 12560-12690.

Digital outputs

Max.
setting

Option
dependent

Factory
setting

Not used

12790 Ext. dig. out 1

No. Setting Min.

setting

12790 Ext digital output 1

Delay 2.0 s 600.0 s 10.0 s
Fail class MEC 310 unit dependent Warning
Relay output A Not used Not used
Relay output B Not used
Enable OFF ON OFF

Same order for settings 12810-12940.

Max.
setting

Option
dependent

Factory
setting

Not used

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MEC 310 APPLICATION NOTES - External I/O Modules

5. Fault finding

Beckhoff controllers

LC5100 BK5120

BK5150

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MEC 310 APPLICATION NOTES - External I/O Modules

Diagnostic LEDs

The Beckhoff controllers have LEDs for display of status. They can be used for fault finding.

CAN ERR blink code

CAN ERR Meaning
Off
Fast blinking

(Approx. 50ms on, approx. 50ms off;
alternating with RUN LED).

1 x flash

(Approx. 200ms on, 1s off).

2 x blinking

(Each approx. 200ms on, 200ms off, followed
by a 1s pause).

3 x blinking

(Each approx. 200ms on, 200ms off, followed
by a 1s pause).

4 x blinking

(Each approx. 200ms on, 200ms off, followed
by a 1s pause).

CANbus

has no errors

Automatic Baud rate detection has

found a valid Baud rate

.

not yet

. Not enough

telegrams on the bus yet.

CAN warning limit exceeded.

There are too
many error frames on the bus. Please check
the wiring (e.g. termination resistors, screens,
conductor length, stubs). Other possible
causes for exceeding the warning limit: There
are no other participating devices in the
network (occurs e.g. when the first node is
started).
The

guarding or heartbeat monitor

alerted, because neither guarding telegrams
nor heartbeat telegrams are received.
Precondition for guarding monitoring: Guard
time and life time factors are > 0.
Precondition for heartbeat monitoring:
Consumer heartbeat > 0).
The bus coupler is pre-operational (PDOs
switched off), and the outputs are in the error
state.
A

synchronisation error

has occurred. No
sync. telegrams have been received during the
set monitoring time (object 0x1006 x 1.5). The
bus node is pre-operational (PDOs switched
off), and the outputs are in the error state.

Event timer error

: The bus coupler has not
received an RxPDO within the set event time
(0x1400ff sub-index 5). The bus node is pre­operational (PDOs switched off), and the
outputs are in the error state.

has

RUN blink code

RUN Meaning
Off

Firmware status < C0: Bus node is in

. No communication is possible with SDO

state

stopped

or PDO.

Fast blinking

(Approx. 50ms on, approx. 50ms off;
alternating with CAN ERR LED).

1 x blinking

(Approx. 200ms on, 1s off).

Blinking cyclically

(Approx. 200ms on, 200ms off).

On

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Automatic Baud rate detection has

found a valid Baud rate

. Not enough

not yet

telegrams on the bus yet.
Bus node is in

stopped state

. No
communication is possible with SDO or PDO.
Bus node is in

pre-operational state

. The
node has not yet started.
Bus node is in

operational state

.

MEC 310 APPLICATION NOTES - External I/O Modules

Tx overflow blink code

Tx overflow Meaning
On

A

transmit queue overflow

The bus coupler could not send its messages.
Cause: E.g. excessive bus loading. A bus
coupler reset must be carried out.

Blinking cyclically

(Approx. 200ms on, 200ms off).

Logical Tx queue overflow: SYNC interval too
short. The coupler could not deliver all the
TxPDOs before the following SYNC telegram.
The TxPDOs are then e.g. delivered in every
second SYNC interval.
Remedy: Lengthen the SYNC interval or raise
the transmission type. In some cases it may be
appropriate to reduce the I/O count at this bus
station (e.g. by moving I/Os to the
neighbouring station).

Note: The logical Tx queue overflow is
signalled for approx. 10s and then reset. If it
keeps recurring, signalling is maintained.

has occurred.

Rx overflow blink code

Rx overflow Meaning
On

A

receive queue overflow

has occurred. The
bus coupler loses messages.
Cause: E.g. bursts of short telegrams.
A bus coupler reset must be carried out.

Blinking cyclically

(Approx. 200ms on, 200ms off)

A

receive queue overflow

has occurred. The
bus coupler has lost messages, but the
overflow condition is no longer current.
Cause: E.g. bursts of short telegrams, perhaps
during a status transition (e.g. very short
SYNC interval during transition after
operational).
Signalling is reset during a bus coupler reset.

K-bus LEDs (local errors)

Two LEDs, the K-bus LEDs, indicate the operational state of the bus terminals and the connection
to these bus terminals. The green LED (I/O RUN) lights up in order to indicate fault-free operation.
The red LED (I/O ERR) flashes with two different frequencies in order to indicate an error. The
errors are displayed in the blink code in the following way:

Blink code

Fast blinking Start of the error code
First slow sequence
Second slow sequence

Error code
Error argument (error location)

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MEC 310 APPLICATION NOTES - External I/O Modules

Continuous

Error type

Error code Error code

Description

Remedy

argument

General K-bus error - Check terminal strip.

flashing
1 pulse

0 EEPROM check sum error
1 Inline code buffer overflow
2 Unknown data type

- Set manufacturer’s setting with the
KS2000 software.

- Connect fewer terminals; too many
entries in the table for the
programmed configuration.

- Software update required for the
coupler.

2 pulses

0 Programmed configuration

incorrect table entry/bus
coupler

- Check programmed configuration for
correctness.

- Incorrect table entry/bus coupler.

(n>0) Incorrect table comparison

(terminal n)

3 pulses

0 K-bus command error - No terminal connected; attach

terminals.

- One of the terminals is defective;
halve the number of terminals
attached and check whether the
error is still present with the
remaining terminals. Repeat until the
defective terminal is located.

4 pulses

0
n

K-bus data error, break
behind bus terminal n

- Check whether the n+1 terminal is
correctly connected; replace if
necessary.

- Check whether the end terminal
9010 is connected.

5 pulses

n K-bus error during register

- Replace terminal n.

communication with
terminal

7 pulses

n BK5110 or LC5110:

Unsupported terminal

- Only use digital terminals or bus
coupler BK5120.

detected at location n

All information regarding error codes is related to the documentation from:
http://www.beckhoff.com/

Thomson Technology reserves the right to change any of the above

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