Wärtsilä Finland Oy, Service
Service product
WECSplorer
Concerns engine type Reference Date
See letter WFI–S
Issue
05.11.2003 01
Document No.
C11012
Kronodoc ID.
DAAB032954f
Page
1(5)
Wärtsilä has developed a new software tool for maintenance and troubleshooting of engines equipped with Wärtsilä Engine Control System
(WECS) 2 nd generation i.e. engines equipped with WECS7000, 7500 and
8000 control systems. With the tool, named WECSplorer you can load software, tune engine performance, troubleshoot and perform system tests on your engine.
The tool is user level password protected and the application file is adapted for your application.
The benefits vary depending on the engine application. The main benefit is to have control of each WECS module application software, i.e. the same spare module can be used for various applications and on different engines.
This will minimize the need for spare modules.
For engines with electronic fuel injection the duration and timing offset of injectors can be changed within specified user dependent limits. This will give end-user some control of exhaust temperature and peak pressure balance. When exchanging injectors, calibration of duration and timing offset values is also needed. Only with WECSplorer the user can affect the above values.
Many complex failures can be hard to track and detect from the normal sources i.e. from alarm log / trending in control room or from Local Display
Unit (LDU) on the engine, the tool will however give a new possibility since the trending can be done with optimum update rate. On a single parameter the update can be as low as below 10ms.
The tool is reading diagnostic functions supported by engine application. The
WECSplorer diagnostic log will show diagnostic, alarm, error and critical messages with description and recommendations.
Subject to change without notice. Copyright 2003 Wärtsilä Corporation. Validity: Until further notice.
Tel. +358 10 709 0000 Wärtsilä Finland Oy
Service, Vaasa
Wärtsilä Finland Oy
Service, Turku
P.O. Box 252 (Tarhaajantie 2)
FIN-65101 Vaasa, Finland
Telecop. +358 6 356 7355
Telecop. +358 6 356 7366
P.O. Box 50 (Stålarminkatu 45) Telecop. +358 2 264 3279
FIN-20811 Turku, Finland Telecop. +358 2 264 3410
Tel. +358 10 709 0000
Business ID 0773744-3
Registered Office: Vaasa, Finland

Wärtsilä Finland Oy, Service
Service product
WECSplorer
Concerns engine type Reference Date
See letter WFI–S
Issue
05.11.2003 01
Document No.
C11012
Kronodoc ID.
DAAB032954f
Page
2(5)
Engine type specific system tests can be carried out with WECSplorer; injection simulation, input/output-, waste gate-, gas valve- and gas train tests.
WECSplorer consists of a graphical user interface (GUI) for operation and trend viewing. The GUI provides standard windows style interface. Symbol list is presented in tree form similar to Windows © Explorer (file manager application) and they can be accessed and modified using mouse and keyboard.
Picture 1. Example of WECSplorer layout.
WECSplorer reads and writes directly the binary data (*.out file) according to the symbol list (*.sym file) of the application. The modified binary files are downloaded to the target. The downloading is done using a simple dialog, which allows the user to select targets where the file is downloaded. The symbol values can be changed online (working with binary file in engine modules) or offline (working with binary file in PC). To make a change permanent the files are downloaded to the modules.
The application provides monitoring in trend graphs for single and multiple parameters simultaneously in different windows. Single and multiple engines are supported. Trend data can be saved in Excel readable format. The data can also be loaded to the tool for later examining.
Communication between the PC and WECS is done using CAN 2.0b field bus. The supported communication protocols are WECAN and WECAN+, and TCP/IP.

Wärtsilä Finland Oy, Service
Service product
WECSplorer
Concerns engine type Reference Date
See letter WFI–S
Issue
05.11.2003 01
Document No.
C11012
Kronodoc ID.
DAAB032954f
Page
3(5)
The CAN-communication is established with a CAN-card in the PCMCIA-slot of the PC. The CAN-card is connected with a driver- and extension cable to service tool outlet of concerned engine.
The CAN-card is a two-channel CAN interface for the PC-card (PCMCIA) bus. It is equipped with dual CAN controllers, and has a high performance microprocessor and memory architecture, as well as enhanced ESD robustness.
Picture 2. CAN-card
The Driver-cable is a combined cable and CAN driver for the CAN PC-card
CAN interface. The driver-cable is interchangeable and designed for maximum flexibility and maintainability.
Picture 3. Driver-cable
The extension cable is used to extend the driver-cable in order to connect to the service tool outlet on the engine.

Wärtsilä Finland Oy, Service
Service product
WECSplorer
Concerns engine type Reference Date
See letter WFI–S
Issue
05.11.2003 01
Document No.
C11012
Kronodoc ID.
DAAB032954f
Page
4(5)
Picture 4. Extension cable
Picture 5. Connection of extension cable.
The WECSplorer setup is done by running the setup.exe file from the installation CD. The default options are recommended to be used when installing.
The CAN-card drivers for different operating system can be found from the installation supplied CD. The correct driver is selected when inserting the
CAN-card in the PCMCIA-slot.
The user passwords and engine application files are administered by
Technical Service within each Product Company of Wärtsilä Corporation.
WECSplorer software:
WECSplorer software tool runs on Windows © NT (SP6), Windows © 2000
(SP4) and Windows © XP (SP1) operating systems. Minimum requirements for the PC/laptop are 166MHz Pentium II with 98MB RAM and PCMCIA-slot.
The minimum screen resolution is 1024x768.

Wärtsilä Finland Oy, Service
Service product
WECSplorer
Concerns engine type Reference Date
See letter WFI–S
Issue
05.11.2003 01
CAN-card:
Type:
Size:
Voltage feed:
Power consumption:
Connectors:
Controllers:
Document No.
C11012
Kronodoc ID.
DAAB032954f
Page
5(5)
LAPcan II CAN-card PCCard (PCMCIA) Type II
85 x 53.5 x 5 mm
5 V
110mA + consumption of driver cable
2 x 15-pin to driver cables
2 x SJA1000 (Philips)
Driver cable:
Type:
Size:
Weight:
Cable length:
Power:
Connectors:
CAN Driver:
DRVcan DNopto
116 x 30 x 17 mm
115 g
Approx. 30 cm on both sides.
Supplied by the LAPcan card
One 15-pole connector to LAPcan
One 9-pole maleDSUB for the CAN bus.
Philips 82C251 or compatible. HP7101 or compatible opto-couplers (approx. 30ns delay).
Supports bus speeds up to 1 Mbits/s.
Extension cable:
Connectors:
Cable type:
Cable length:
D9 sub connectors with housing.
2 wires + shield. (Shield connected in both ends to the connector body).
10m
CAN termination resistor, (120 Ω ), mounted between pin 2 and 7 in D9 female connector.