Centum VP maintenance training part3

Communication handled by CS3000/Centum VP Vnet protocol are:  Read/write of FCS data FCS-FCS and HIS-FCS  Broadcast of FCS messages FCS-HIS  Broadcast of HIS messages HIS-HIS  Time e

Copyright © Yokogawa Electric Corporation

June 2012

Yokogawa Electric Corporation

YOKOGAWA VIETNAM CO.LTD

Yokogawa Vietnam Co Ltd Service Department

Maintenance Course

Schedule for the day :

Session Starts: 9:00 – 10:30 am Tea Break: 10:30 – 10:45 am

Session Resume: 1:00 – 3:00 pm Tea Break: 3:00 – 3:15 pm

Maintenance Course

Day 3

CENTUM VP Maintenance Course

Network operation Vnet TCP/IP Communication Function Vnet/IP Network Utility

Vnet Utility Commands Troubleshooting of overall windows Hands-on Exercises

Flow Chart of Installation Procedure

VP Software

VP maintenance

Network Operation

Communication Function Overview

Vnet is the core bus of the CENTUM VP communication function

Vnet is real time system control bus used to connect the component units: it main functions are to perform HIS-FCS control data communication and data equalization between HIS’s at high speed

This special protocol (Vnet protocol) is mainly related to FCS The timing must be accurate Communication handled by CS3000/Centum VP Vnet protocol are:

 Read/write of FCS data (FCS-FCS and HIS-FCS)

 Broadcast of FCS messages (FCS-HIS)

 Broadcast of HIS messages (HIS-HIS)

 Time equalization

 Communication for operating status display

 On-line maintenance communication

The general-purpose (Open Communication)protocol is used for communicating

a large volume of data, file exchange and communication using a general-purpose interface

Communication handed by General Protocol (TCP/IP) are:

 Equalizing communication

 Acquisition of status display data

 Other station trend

 “Download”, “IOM download” and “Tuning parameter save” in operation status display window

 Recipe equalization between HISs

 Server client processing of process control function

 Open data interface

 Recipe loading

Information Communication Flow

Network specification

Both Vnet and Ethernet are mandatory

Ethernet is always used for communications in HIS-HIS If a failure occurs on Ethernet, communication do not switch to Vnet (this is to protect the control bus and FCS in a large scale system

TCP/IP socket communications in HIS/FCS are made via Vnet

Control Communication and Open Communication

Vnet/IP is designed as a duplexed network In Vnet/IP, a duplexed bus is

configured with independent subnets of bus 1 and bus 2

If both buses are normal, bus 1 is used for control communication, and bus 2 is

used for open communication

If bus 1 fails, control communication is performed using bus 2 In this case,

because open communication is also performed using bus 2, control communication and open communication coexist Therefore, to secure the band for control communication, the band for open communication will be restricted

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Control Communication and Open Communication

PLC Open

HIS Open Vnet

HIS Open Vnet

Control communications

(for regular use)

GSGW

Vnet Open APCS

Open Vnet FCS

Vnet

BUS 2

Yokogawa hardware

: PIMS

Open

Specification when Connecting Devices in a Vnet/IP Domain

The specification when connecting devices in a Vnet/IP domain is as follows:

• Number of Vnet/IP stations connected: Max 64 units Vnet/IP stations including

V net router

• Other general-purpose Ethernet communication devices

(PCs, routers, etc.): Max 124 units

• Levels of layer 2 switches: Max 7 levels

• Distance between layer 2 switch and station: Max 100 m (when UTP is used)

• Connection distance between layer 2 switches: Max 5 km (when optical fiber is

used)

Vnet/IP Communication Function Overview

Allows the use of commercially-available network devices

No modification of Vnet drivers is required

Same system scale: 16 domains (31 by special order), 64 STN/domain

Secures communications bandwidth for control communications by means of bandwidth restrictions, and by restricting the inflow from external open devices

Vnet/IP Communication Function Overview

Vnet/IP communications functions allow functional compatibility with Vnet.

VP maintenance

Time Management Function

Overview of Time Synchronization

Time synchronization in a Vnet/IP network is performed in time group units Define a time group in domain units To synchronize each station in a Vnet/IP network with UTC, connect

an SNTP server in each time group.

SNTP: Simple Network Time Protocol UTC: Universal Time of Convention Time Group is set in the domain properties of the FCS

Accuracy of Time Synchronization

The Time Management function of a Vnet/IP station is the same as the V net system of the CENTUM CS 3000 Time management is performed via a control bus The hardware of Vnet/IP performs time synchronization in the entire Vnet/IP network This time is referred to as the network time The relative time accuracies

of the network time are shown below:

Time Group

The time group denotes a range in which time synchronization is performed The entire Vnet/IP network can be defined on one time group On the other hand, by separating domains in the same Vnet/IP network into time groups, the range in which time synchronization is performed can be limited For example, if the deviation in relative time due to variations in transmission delay time between Vnet/

IP domains cannot be ignored, separate time synchronization between domains by defining time groups, and connect an SNTP server to each time group By this, the deviation in relative time between domains can be suppressed to 1 msec, the

deviation in absolute time of an SNTP server

Specify a time group using a number from 0 to 7 The default time group number is

1 To perform time synchronization only in a domain, set the time group number to

0 If an SNTP server does not exist in a time group, one of Vnet/IP stations in a time group will act as a time master, and other stations in the same time group will

synchronize with the network time of the time master

Simple Network Time Protocol (SNTP) Server

To synchronize the network time of a Vnet/IP station with a UTC, connect an SNTP server in each time group Only one SNTP server can be connected to each bus within the same time group Generally, connect an SNTP server to bus 1 of Vnet/IP To duplex SNTP servers, add one SNTP server to bus 2 of Vnet/IP.The IP address of an SNTP server connected to Vnet/IP is as follows:

IP address of an SNTP server connected to bus 1 of Vnet/IP

192.168.<domain number>.254

IP address of an SNTP server connected to bus 2 of Vnet/IP

192.168.<128 + domain number>.254

Time Synchronization after Powering On a Station

After a station is powered on, the time of that station gradually approaches the network time of the same time group Within 5 seconds after system startup, the relative time accuracy reaches 1 second, and within 5 minutes, the relative time accuracy reaches 1 msec

VP maintenance

HIS communication Function Troubleshooting

HIS communication Function Troubleshooting

1 His control Bus Driver –related troubles

The system hangs up and can not start up upon restart after installing the control bus card driver

Possible cause:

 Improper Windows setting

 PCI Slot is damaged

 Failure in control bus card

 Installation failure of control bus card driver

HIS Communication Function Troubleshooting

Action:

 Checking the hardware, control bus card and other devices

 From the recovery menu at the startup of windows, restore the state

of the previous successful startup

 Pull out the control bus card and start windows

 Try moving the control Bus card to another PCI slot

2 Restart related troubles after installation

Possible cause:

 IRQ conflict between Control Bus card and other devices

 Bus1 and Bus 2 are cross-connected

 Improper station address setting (out of range, parity setting error, overlapping address, mismatch in domain numbers)

 Control Bus card protocol driver is not properly installed or not installed at all

 Improper network bind setting

 PCI slot is damaged

 Control Bus card failure

HIS Communication Function Troubleshooting

Action:

 Checking the hardware, control bus card and other cables

 Check the LED lamp status on the control Bus card (dual-redundant:4 lamps flashing when normal)

 Investigate the cause using the event log, windows diagnose programs etc

 Check the settings using “Network” in the control Panel

 Try inserting the Control Bus card to another slot

3 Ethernet communication, which has been working so far, is disabled

Possible cause:

 Improper network bind setting

 Improper TCP/IP communication setting (IP address, subnet mask, others)

Action

 Check the hardware, Ethernet adapter card and Ethernet cables

 Check the settings using “Network” in the control Panel

HIS Communication Function Troubleshooting

4 The bus configuration is viewed as dual-redundant, although it is actually a

single bus, or vice-versa.

Possible cause:

 The check box of “Make control bus Dual-Redundant” which is displayed in the FCS’s domain properties Or the project common data is not downloaded after the setting and restart is not performed

For CS3000/CENTUM VP

HKEY_LOCAL_MACHINE\SYSTEM|CurrentControlSet\Services\VLNIC\Config\ BusType (0: not set yet/1:single bus configuration/2: Dual-redundant bus configuration) HKEY_LOCAL_MACHINE\SYSTEM|CurrentControlSet001\Services\VLNIC\Config\ BusType (0: not set yet/1:single bus configuration/2: Dual-redundant bus configuration) HKEY_LOCAL_MACHINE\SYSTEM|CurrentControlSet002\Services\VLNIC\Config\ BusType (0: not set yet/1:single bus configuration/2: Dual-redundant bus configuration)

Run\ regedit

HIS Communication Function Troubleshooting

VP maintenance

Vnet/IP Network Utility

System Status Overview

Network Status Display

Understanding the Network Status Display Window

1.Tab shows in red colors if any error exist

2 Whether or not Buses 1 and 2 of the receiver (RECV) station can detect transmission from the sender (SEND) station

3 Focus on any error status

Network Status Display

Understanding the Network Status Display Window

(2) Communication Status among the stations

• control side – control side

• standby side – control side

• control side – standby side

• standby side – standby side

Only the communication status on the control side is displayed for a single control station or HIS

For duplexed control stations, the communication status

is displayed on both the control side and standby side.

Network Status Display – Case 1

B

12 x

6 x 8x 2x

Network Status Display – Case 2

B

1 2 x

6 x 8x 2x

Break

Network Status Display – Case 3

B

12 x

6 x 8x 2x

6, 12 and 61 through Bus

1 has failed, while through Bus 2 is normal

Break

Network Status Display – Case 4

B

12 x

6 x 8x 2x

Standby to Control

Break

Network Status Display – case 5

B

12 x

6 x 8x 2x

Network Status Display – Case 6

B

12 x

6 x 8x 2x

normal

Break

Network Status Display – case 7

B

12 x

6 x 8x 2x

Communication Status Display Among Domains

Check whether or not each domain in a Vnet/IP network is normally performing

reception from other domains

Abnormal domain will be displayed

in red

VP maintenance

Vnet Utility Commands

Vnet/IP Utility Commands

tmabandon Abandons being a time master

tmset Sets the network time

tmtime Displays the network time

vhpdlog Displays the VLnet/Vnet driver related statistical information.

vhping Performs the connection test to the Vlnet/Vnet network.

vhplog Displays the firmware related statistical information.

vhploopback Carries out self-diagnostics of the functions of the Vnet/VLnet

adapter by an external loopback check.

vhpsts Displays the station status.

These commands are installed under [CS1000\NET\Tool] or [CS3000\NET\Tool]

These commands are only activated from the DOS command prompt

Vnet Utility Commands

Displaying the network time, time master station and system time of Vnet/IP on which HIS is connected.

Vnet Utility Commands

Sets the network time on the Vnet/IP on which the HIS is connected

Syntax:

tmset [options]

Options:

-Y: Specify the year -h: Specify the hour

-n: When this option is specified, the current operating system’s time is set -S : Declare that it is during the daylight saving time when the daylight saving time is enabled.

Usage example : tmset –Y 2012 –M 8 –D 16 –h 11 –m 11 –s 11

tmset –h 10 tmset –n

Vnet Utility Commands

tmabandon – When executed on the HIS that serves as the time master causes

the HIS to be no longer a time master When executed on other HIS other than the time master, the time master of the HIS will be displayed at that time

Syntax:

tmabandon

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Vnet Utility Commands

vhpdlog - Acquires and displays the VLnet/Vnet driver related statistical

information (adapter driver or protocol driver)

-f: Save the statistical information to a CSV-format text file Specify the file name

with the absolute path or relative path from the current directory to it

-n: Display the statistical information held by the adapter driver (The protocol drive

is selected by default.)

Usage example:

vhpdlog –n –f c:\temp\vhplog.txt

Vnet Utility Commands

Vnet Utility Commands

vhping - Performs the connection test to the Vlnet/Vnet network Sends a GET

frame to specified stations on the VLnet/Vnet repeatedly, and displays the response times

Syntax: vhping [options] StationNumber

Options:

-h: Send a HAP frame (By default, a SAP frame is sent.)

-l : Specify the size of transmitted data (The default size is 2 words.)

-c: Specify the number of repetitions

-d: Specify the domain number when sending to another domain

-i Specify the transmission interval in seconds (The default interval is 1 second.)

Usage example : vhping –h –l 4 –c 10 –d 1 –i 2 24

Station no 63

Vnet Utility Commands

vhplog - Displays the firmware related statistical information.

Syntax: vhplog [options]

Options:

-i: Specify the display update interval in seconds When omitted, the displayed information will not be updated Press CTRL+C to quit the display update.

-c: Will clear the statistical information after displaying it once.

-f: Save the statistical information to a CSV-format text file Specify the file name with the absolute path to it.

Usage example:

vhplog –f C:\tmp\test.log

Vnet Utility Commands

information for all stations

Vnet Utility Commands

vhploopback – Carries out self-diagnostics of the functions of the Vnet/VLnet

adapter by external loopback check

Syntax: vhploopback [option]

Options:

-b: Specify the bus which the loop-back communication is done

-d: Specify unsigned 32bit data When the internal loop-back communication is done with the external loop back by using this data, if data is different, it is

assumed it is abnormal

VP maintenance

Troubleshooting of overall

Windows Troubleshooting of overall

Windows

The windows services are activated automatically at Windows start-up (log on) They can be started from [Start] – [Settings] – [Control Panel] – [Administrative Tools] – [Services] (The operator must be authorized as an administrator)

The services below are started as normal processes by the CENTUM VP loader after logging onto Windows

administrator.

*Normally, this program does not start.

Troubleshooting of overall Windows