Mobility

BACHWARA FAILURE ANALYSIS REPORT

Station Commissioned
Station Name: Railway Zonal & Division:
On

BACHWARA East Central Railway –SONPUR 02.03.2021

Date & Time of Date & Time Date & Time of Date & Time of Action
Failure: Reported BY: Rectification: By SRAPL:

27.07.2022 27.07.2022 27.07.2022 27.07.2022

09:44 Hrs. 09:44 Hrs 09:46 Hrs 11:00 Hrs
Our Reference: Customer Reference:
SRAPL/ECR/SEE/BCA 20220727 Communication over phone by Railways

System Brief and configuration (WESTRACE Mk2– Interlocking with Dual VDU):

Operator
System No of terminal Operator Maintenance
Configuration Mode Routes configuration VDU VDU
WESTRACE Hot
- Dual VDU WESTCAD MoviolaW
Mk2 Standby

1.0 Failure Statement:

1.1 Type of failure as it reported:

On 27th July 2022 – 09:44 hrs SSE has reported the following:
• VDU-1 was online & not responded to SM’s operation.
• SM has tried with VDU-2, and it was also not responding.

1.2 Failure Description:

On arrival of maintenance staff, it was noticed that VDU-1 & VDU-2 were not responding
to the SM operations,
No fault indications were observed by Railway staff in any of the EI modules and all are
working satisfactorily,
After restarting both PC’s & successful of User authentication activities, PC-1 came into
online.

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1.3 Failure Analysis:

From the logs received from site following observations are made.
On 27th JUL 2022 at 09:42 hrs, the MoviolaW reports has recorded that the operator VDU
control was in VDU-1.
It has been noticed that VDU-1 communication was lost initially, and after some time VDU-2
communication also lost.
Due to both VDU’s communication failure, the PC operations became inactive.
DIGITAL REPORT FOR
BACHWARA_SSI_CENTRAL
From: 27/Jul/22 09:00:00
To: 27/Jul/22 11:00:00
Report Taken on : 27/Jul/22 12:18:20
SlNo SIGNAL NAME SIGNAL SIGNAL TIME
STATUS
5155 LOS1 Down 07/27/2022 09:42:38:828
5156 LOS2 Down 07/27/2022 09:42:38:828
5157 LOS3 Down 07/27/2022 09:42:38:828
5158 LOS4 Down 07/27/2022 09:42:38:828
5159 LOS5 Down 07/27/2022 09:42:38:828
5160 LOS6 Down 07/27/2022 09:42:38:828
5161 WESTCAD1_OK Down 07/27/2022 09:42:38:828 VDU1 in Active mode is failed
5167 PC2 Up 07/27/2022 09:42:38:828 Operator control shifted to VDU-2
5191 LOS7 Down 07/27/2022 09:44:59:046
5192 LOS8 Down 07/27/2022 09:44:59:046
5193 LOS9 Down 07/27/2022 09:44:59:046
5194 LOS10 Down 07/27/2022 09:44:59:046
5195 LOS11 Down 07/27/2022 09:44:59:046
5196 LOS12 Down 07/27/2022 09:44:59:046
5201 WESTCAD2_OK Down 07/27/2022 09:44:59:046 VDU2 in Active mode is failed
5262 LOS1 Up 07/27/2022 09:46:17:968
5263 LOS2 Up 07/27/2022 09:46:17:968
5264 LOS3 Up 07/27/2022 09:46:17:968
5265 LOS4 Up 07/27/2022 09:46:17:968
5266 LOS5 Up 07/27/2022 09:46:17:968
5267 LOS6 Up 07/27/2022 09:46:17:968
5275 WESTCAD1_OK Up 07/27/2022 09:46:19:656
6437 LOS7 Up 07/27/2022 09:56:19:421 VDU 1 restored for normal operation
6438 LOS8 Up 07/27/2022 09:56:19:421
6439 LOS9 Up 07/27/2022 09:56:19:421
6441 LOS10 Up 07/27/2022 09:56:19:750
6442 LOS11 Up 07/27/2022 09:56:19:750
6443 LOS12 Up 07/27/2022 09:56:19:750
6447 WESTCAD2_OK Up 07/27/2022 09:56:20:921
VDU 2 restored for normal operation

Table 1. VDU communication Loss observation

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2.0 Corrective Action:
• Our engineer guided through phone call to make the VDUs operative.
• As an immediate action, PC1 & PC2 were restarted and resumed for the normal
working.
• As per OEM recommendation’s, cleared all temporary cache files and virtual
memory settings has been done in both VDU’S.
• Both VDUs are working fine after restarting the system.

3.0 Preventive and recommended action:

• We highly recommend the changeover of VDUs on Daily basis, the hardware

creates many logs & temporary caches while running the PC for longer duration.
This may cause the RAM to slowdown the PC operation & few other errors. It is
also recommended to do a restart process of both the PC’s. While restarting the
PC, the RAM gets cleared & it gives a fresh start to PC. We don’t have any limitation
of rebooting the VDU software periodically.
• It is recommended Dual VDU changeover process to be followed on daily basis.
(Refer Annexure: 1)
• It is recommended to restart the PC’s once in every 14 days.
• Our engineer is doing this activity during his monthly AMC visit.

4.0 Conclusion:

From the logs and site visit observations it is concluded that, the Changeover between
VDU’s are regularly followed by operating/Maintenance staff but the t process has not been
done for more than one month & hence both VDUs were hanged and lost
communication with EI system. We kindly request SM’s to follow PC1 & PC2
changeover process along with restart activity, as mentioned in the instruction note.

Thanking You.
For, Siemens Rail Automation Private Limited, Bangalore.

Failure report analysed and prepared by

Name: Meenakshi Sundaram K

Designation: Technical Customer Interface

KRISHNAN Digitally signed by KRISHNAN

MEENASKSHI SUNDARAM

Signature & Date MEENASKSHI DN: cn=KRISHNAN MEENASKSHI

SUNDARAM, o=Siemens,
email=meenaskshi.krishnan@siemens.com

SUNDARAM Date: 2022.07.28 20:19:13 +05'30'

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SIEMENS

1) Changeover with co- operation or Normal PC-PC Changeover:

At any point of time only one VDU will be Online showed by Green indication, and another VDU will be in Standby with no
indication as shown below:

a) PC1 Online & PC2 Standby b) PC2 Online & PC1 Standby

Request
Indication
Online Indication

or

Figure 1 Figure 2

To start the PC-PC changeover process always start the changeover process in the PC which you want to take control.
Example: PC1 Online & PC2 Standby, SM want to take control in PC2

To take control in PC2 then start the process as follows: from PC2 & vice versa.
Step-1: On PC2 VDU Go to → PC2 ON-LINE ICON right click it → Click on “REQUEST CONTROL”.
Step-2: Now in PC1 VDU, PC1 ON-LINE ICON top indication (Yellow Color) starts flashing.
Step-3: Right click on PC-1 ON-LINE ICON →click on “ACKNOWLEDGE REQUEST ”.
This completes the PC-PC changeover process from PC1 to PC2. Now PC2 is online, and PC1 is standby.

Figure 3 Figure 4

Figure 3: Step-1 Figure 4 : Step-2,3

• If Cancel Request has been intiated then Change over stage will be stopped.
• Same Step 1,2&3 to be followed vice versa for Changeover PC2 to PC1.
2.Changeover without co-operation or Emergency Changeover (Over-
ride control)
• In cases of any failures like Monitor shut down, Mouse etc..) on online VDU, Station Master can no longer perform
any operations. In such cases, the Station Master can take control to another VDU to online by performing the
“Over-ride Control” operation.
• Example PC1 is online & PC2 is standby to perform the Over-Ride control (Emergency changeover) Station master
should right click on the PC2 ONLINE symbol as shown in figure and left click on “OVER-RIDE CONTROL” option
& pop window appears as USERNAME and PASSWORD shown in Picture 3.
• Enter the Username and Password and click on OK, then standby VDU will be Online as shown in Fig.6

Figure 5 Figure 6 Figure 7

VDU MAINTENANCE INSTRUCTION NOTE Version 1.00 Page 1 of 4

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It is recommended to perform the Manual or Over-ride changeover process on Daily basis to ensure the prompt
sequence of Operator VDU changeover operation during failures as well routine maintenance activities.

3) Restart Process of Both VDU’s:

It is highly recommended to perform the restart process of operator VDUs on Fortnight basis (Two weeks once) to clear
the temporary files stored in the PC memory.

Figure 8 (Start button) Figure 9(Restart)

To perform the Restart process in Stand by VDU, start the process as follows:

from Standby VDU & vice versa.

Step-1: On Standby VDU Go to → Click on “START” icon in the lower-left corner of the Windows desktop.
Step-2: Locate and click the right arrow (shown in Figure.9 below) next to the Shutdown button.
Step-3: Select Restart from the menu that appears.

After successful restart operation in Standby VDU, ensure the WESTCAD application runs in Standby VDU, then perform
the restart process for ON-LINE PC as per the steps given below:

Step-4: Go to → Standby PC and ON-LINE ICON right click it → Click on “REQUEST CONTROL”.
Step-5: Now in ONLINE VDU, ON-LINE ICON top indication (Yellow Color) starts flashing.
Step-6: Right click on ONLINE PC ON-LINE ICON →click on “ACKNOWLEDGE CONTROL”.
This completes the PC-PC changeover process from ONLINE to Standby.

Repeat the Step -1 to Step-3 in Standby PC.

4) Removal Process of Temporary files form VDU PC:

On your keyboard, Press the Windows button + ‘R’ key. A program such as that shown below in the picture (Figure 10)
will appear on the VDU screen.

To automatically open the temp folder type in %temp% as shown in the image below(Figure 11) and your temporary files
folder will be opened.

Figure 10 Figure 11
VDU MAINTENANCE INSTRUCTION NOTE Version 1.00 Page 2 of 4
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To select and delete all folders use shortcut keys on your keyboard, Press Ctrl + A to select all folders (Figure 12) then
click on the backspace key or delete key to delete all or right-click on any of the selected files, scroll to delete option and
hit delete button. Confirm your action yes and press enter(Figure 13).

Figure 12

Figure 13
Note: In case of an error saying some files weren’t found, simply check, or tick the “do this for all
current items” option below the dialog and hit skip.

Figure 14

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5) Process to see PC CPU Usage :
In Open Task manger by right clicking On Taskbar (Figure 15) and choosing it from context menu or by pressing Ctrl +
shift + esc. Click on show Performance (Figure 16) to see the CPU usage.

Figure 15

Figure 16
If the CPU usage is more than 80%, do the changeover to Standby VDU and follow the restart process as mentioned
above in this document.

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