Web Server

Introduction

The TM3 Modbus Serial Line bus coupler supports a web server, offering easy access to information such as configuration data, module status, I/O data, network statistics, and diagnostic information. All of this vital information is available using a simple web browser.

In addition the web server allows you to monitor this information, the bus coupler network and I/O remotely.

You can access the Web server with HTTPS (secure connections). HTTP (non secured connections) is not supported.

The Web server is accessible through the bus coupler USB port. You can use the pages of the Web server for setup of the network speed and control the I/O modules outputs as well as diagnostics and monitoring. These pages are ready to use with a Web browser. No configuration or programming is required.

Any PC providing a USB (host) port can connect to the Web server by using a Web browser.

The Web server can be accessed by the web browsers listed below:

oMicrosoft Internet Explorer (version ≥ 11)

oGoogle Chrome (version ≥ 71)

oMozilla Firefox (version ≥ 64)

oMicrosoft Edge (version ≥ 42)

The Web server allows you to monitor a bus coupler to perform various maintenance activities including modifications to outputs modules data and network speed configuration. Care must be taken to ensure that the immediate physical environment of the machine and process is in a state that will not present safety risks to people or property before exercising control remotely.

WARNING

UNINTENDED EQUIPMENT OPERATION

oDefine a secure password for the Web server, and do not allow unauthorized or otherwise unqualified personnel to use this feature.

oEnsure that there is a local, competent, and qualified observer present when operating on the controller from a remote location.

oYou must have a complete understanding of the application and the machine/process it is controlling before attempting to adjust data, stopping an application that is operating, or starting the controller remotely.

oTake the precautions necessary to assure that you are operating on the intended controller by having clear, identifying documentation within the controller application and its remote connection.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

NOTE: The Web server must only be used by authorized and qualified personnel. A qualified person is one who has the skills and knowledge related to the construction and operation of the machine and the process controlled by the application and its installation, and has received safety training to recognize and avoid the hazards involved. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this feature.

Web Server Access

You can manage the user accounts on the Web server on MAINTENANCE / User Accounts.

To access Web server, ensure that the rotary switches are in address setting location. For more information regarding address setting, please refer to the Modicon TM3 Bus Coupler - Hardware Guide, Setting the Serial Line Address.

By default, the user name is Administrator, and the password is Administrator. You must change the password at the first login.

WARNING

UNAUTHORIZED DATA ACCESS

oDo not expose the device or device network to public networks and the Internet as much as possible.

oImmediately change the default password to a new secure password.

oDo not distribute passwords to unauthorized or otherwise unqualified personnel.

oRestrict access to unauthorized personnel.

oUse additional security layers like VPN for remote access and install firewall mechanisms.

oValidate the effectiveness of these measurements regularly and frequently.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

NOTE: A secure password is one that has not been shared or distributed to any unauthorized personnel and does not contain any personal or otherwise obvious information. Further, a mix of upper and lower case letters and numbers offer greater security. You should choose a password length of at least ten characters.

Resetting the Password

To reset the password:

Step	Action
1	Connect to the bus coupler using the USB port.
2	Open the browser.
3	Enter the IP address 90.0.0.1.
4	Move the position of any rotary switch to any other position. Result: ERR LED is flashing red. The Restore user accounts button is displayed.
5	Click Restore user accounts.
6	Move the position of the changed rotary switch to its previous position. Result: The Restore user accounts button is no longer displayed.

The login page is the entry point to get authenticated by the Web server. The certificate must be validated. To access the website login page shown in the following illustration, type in your navigator the IP address 90.0.0.1. To login to the Web server, enter the user name and password and click Login.

The Web server contains the following pages:

NOTE: The timeout session for each login is ten minutes. When you do not perform any action after you logged in, it redirects you to the login page if you click any button. You need to log in again with user name and password to access the web pages.

HOME / Equipment Overview

The HOME page displays the product details of TM3 bus coupler.

The Identification section of HOME page consists of:

Element	Description
Vendor Name	Vendor name of the bus coupler
Product ID	Product ID of the bus coupler
Product Name	Product name of the bus coupler
Product Reference	Product reference of the bus coupler
Serial Number	Serial number of the bus coupler
Locate Device	Click the button to locate the bus coupler. The LEDs of the bus coupler flash red for few seconds.

DIAGNOSTICS Page

The DIAGNOSTICS page shows the status of the bus coupler.

The DIAGNOSTICS page contains the following sub-pages:

oDevice

oModbus Serial Line or Modbus TCP

DIAGNOSTICS / Device

The Identification section shows details about identification of the bus coupler:

Element	Description
Vendor Name	Vendor name of the bus coupler
Product ID	Product ID of the bus coupler
Product Name	Product name of the bus coupler
Product Reference	Product reference of the bus coupler
Serial Number	Serial number of the bus coupler

The Status section shows details about the status of the bus coupler:

Element	Description
Last Stop Cause	Displays the cause of the last stop of the bus coupler.
USB Port	Displays whether a USB cable is connected to the bus coupler.
Operating Mode	Displays one of the following operating modes of the bus coupler: oIdle oModbus Serial oWeb interface oFirmware update in progress oTime Out
Configuration Status	Displays one of the following configuration status of the bus coupler: oNot Configured oConfigured

DIAGNOSTICS / Modbus Serial Line

The Configuration section displays the status of Serial Line connection:

Element	Description
Current Speed	Transmission speed in baud rate.
Slave Address	Slave address of the bus coupler

The Statistics section shows the current configuration of Serial Line connection:

Element	Description
TX Messages	Displays the number of Modbus messages transmitted through the Serial Line.
RX Messages	Displays the number of Modbus messages received through the Serial Line.
Error Messages	Displays the number of Modbus messages with frame errors received through the Serial Line.
Reset	Resets the Statistics values to zero.
Refresh	Refreshes the Statistics values.

CONFIGURATION

The CONFIGURATION page displays the I/O modules configuration imported from the TM3 Bus Coupler IO Configurator. The configuration file is an .SPF format.

Element	Description
PROJECT toolbar
New	Read only button.
Open	Allows you to import the I/O modules configuration files generated by the TM3 Bus Coupler IO Configurator. Click Open to import the files.
Save	Read only button.
CONFIGURATION toolbar
Apply	Allows you to apply the I/O modules configuration files on the TM3 bus coupler. If the configuration mismatch the hardware, an error message is generated.
DEVICES toolbar	Read only toolbar.

MONITORING Page

The MONITORING page displays the expansion modules that are connected to the TM3 bus coupler.

MONITORING page without detected modules:

MONITORING page with modules and details:

1 Bus Monitoring

2 Selected module

3 Reconcile button

4 Module details

The MONITORING page shows and describes all the modules detected by the bus coupler and allows you to:

oSee the state of a selected module (running or not running) and the protocol used.

oRead the value of an input or output.

oForce a value to an output by clicking Force.

oIdentify a module by clicking Reconcile.

Element	Description
Detect	Allows you to detect the modules connected to the bus coupler.
Take Bus Ownership Release Bus Ownership	Reserves the bus to allow you to force the module outputs. You can click the button when the bus coupler is configured and not controlled by a controller. Result: You are notified that the I/O bus is controlled by the Web interface. You can edit the output values. Click Release Bus Ownership to release the control of the I/O bus.

Element

Description

Detect

Allows you to detect the modules connected to the bus coupler.

Take Bus Ownership

Release Bus Ownership

Reserves the bus to allow you to force the module outputs. You can click the button when the bus coupler is configured and not controlled by a controller.

Result: You are notified that the I/O bus is controlled by the Web interface. You can edit the output values.

Click Release Bus Ownership to release the control of the I/O bus.

Module Details

The module details view provides the following data:

oModule name and description

oModule state

oFilter option to filter I/Os

oA list of its I/Os

This list of I/Os allows you to view a real-time value of an input and to write the value of an output.

The view has DISPLAY buttons to modify the format of the displayed values.

Output Forcing

1.When Take Bus Ownership is enabled, click a module to force its outputs.

2.Set the output values you wish to force for the module in the Prepared Values column of the list of its I/Os.

3.Click the Force button.

Result: A message is displayed.

4.Click I agree to validate the modifications and send them to the bus coupler.

Click I disagree to cancel the modifications.

As the modules are not identified automatically, click the Reconcile button to identify the modules.

MAINTENANCE Page

The MAINTENANCE page allows you to view and edit the configuration of the bus coupler.

The MAINTENANCE page contains the following sub-pages:

MAINTENANCE / User Accounts

Account Management

The sub-page allows you to define your login password to access the Web server:

Element	Description
Account Management Select an account to edit it
User Name	List of the following user accounts: oAdministrator The Administrator account is configured with a predefined password (Administrator / Administrator). Modify the predefined password after the first connection. oOperator This account is disabled by default. oViewer This account is disabled by default. NOTE: Depending on your account, you have access to some web pages. See the table below for the accessible web pages.
Enabled	Selected if the account is enabled.
Account Management Provide a new password for account
Current Password	Enter the current password of the user account.
New Password	Enter a password for the user account. NOTE: Minimum ten characters, maximum 32 characters and use a...z, A...Z, 0...9 alphanumeric characters. To reset the password, refer to Resetting the Password.
Confirm New Password	Enter the password again of the selected account.
Apply	Saves your new password.

This table describes the accessible pages depending on the user account:

Web pages	Sub pages	Administrator	Operator	Viewer
HOME	–	✓	✓	✓
MONITORING	–	✓	✓	–
DIAGNOSTICS	Device	✓	✓	✓
DIAGNOSTICS	Modbus Serial Line	✓	✓	✓
CONFIGURATION	–	✓	–	–
MAINTENANCE	User Accounts	✓	✓¹	✓¹
	Firmware	✓	–	–
	System Log Files	✓	✓	–
	Modbus Serial Line	✓	–	–
(1) You can only modify your user account.

System Use Notification

The sub-page allows you to define a System Use Notification message which is displayed to users at log-in:

Element	Description
System Use Notification
Enabled	When selected, you can define a message that is displayed at log-in.
Message	Displays the message defined.
Reset	Reset to default message.
Apply	Applies your changes.

MAINTENANCE / Firmware

The Firmware sub-page shows the firmware version of the TM3 bus coupler and allows you to update its firmware:

Element	Description
Current Firmware
Firmware	Firmware version
Web interface	Web server version
Firmware Update Select a new firmware version
Select	Allows you to select the new firmware file for the bus coupler.
Apply	Applies the new firmware.
Cancel	Cancels firmware modifications.

NOTE: You cannot update the firmware when the TM3 bus coupler cyclically exchanges data with the logic/motion controller. To make sure the bus coupler is not exchanging data, see MONITORING.

To update the bus coupler firmware:

Step	Action
1	Remove power from the bus coupler.
2	Ensure rotary switches are in address setting position e.g TENS to 0, ONES to 1.
3	Connect USB cable to PC then to bus coupler.
4	Apply power to the bus coupler.
5	Log into the Web server as Administrator.
6	Verify in the MONITORING page that the bus coupler is not exchanging data with the controller.
7	Click MAINTENANCE / Firmware.
8	Click Select then select the firmware file. Result: A confirmation window is displayed.
9	Click I agree. Result: At the end of the download and verification of the file, a confirmation window is displayed.
10	Click Yes to close the confirmation window then click Apply. Result: At the end of the firmware update, a message is displayed to inform you whether the firmware update is completed successfully.

MAINTENANCE / Modules Firmware

The Modules Firmware sub-page shows the firmware version of the modules configured and allows you to update its firmware:

Element	Description
Modules Firmware Overview
Slot	Slot number of the module
Reference	Reference of the module
Current Firmware	Firmware version of the module
Modules Firmware Management Select a new firmware version
Select	Allows you to select the new firmware file for the module. NOTE: You can select only a single firmware file. All modules on the bus corresponding to the selected firmware are updated.
Apply	Allows you to apply the new firmware.

NOTE: You cannot update the firmware when the TM3 bus coupler cyclically exchanges data with the logic/motion controller. To make sure the bus coupler is not exchanging data, see MONITORING.

To update the module firmware:

Step	Action
1	Remove power from the bus coupler.
2	Connect the USB cable.
3	Apply power to the bus coupler.
4	Log into the Web server.
5	Verify in the MONITORING page that the bus coupler is not exchanging data with the controller.
6	Click MAINTENANCE / Modules Firmware.
7	Click Select then select the firmware file. Result: The firmware file is selected.
8	Click Apply. Result: A confirmation window is displayed.
9	Click I agree. Result: A restart window is displayed.
10	Click Yes. Result: The file is verified and downloaded. Thereafter, a confirmation window is displayed. The TM3 bus coupler reboots and a confirmation window is displayed.	Click No. Result: The firmware update is canceled.

MAINTENANCE / System Log Files

The System Log Files sub-page lists the log files. Some of the information in the log files comes from internal interactions of the firmware and is intended to be used by Schneider Electric Technical Support:

Element	Description
Log Files Select one or more log files to download
Select	Allows you to select one or more log files.
Name	Shows the list of the log files.
Size	Displays the size of the log files.
Download	Allows you to download the log files.

MAINTENANCE / Modbus Serial Line

The Modbus Serial Line sub-page allows you to change the network settings:

Element	Description
Configuration
Speed (baud)	Allows you to set the baud rate. You can also set the baud rate using the rotary switch. Refer to Modicon TM3 Bus Coupler Hardware Guide.
Slave Address	Displays the Slave Address value for your device.
Parity	Used for error detection.
Data bits	Displays the number of bits for transmitting data.
Stop bits	Displays the number of stop bits.
Apply	Saves the configuration settings. NOTE: Upon confirmation, the bus coupler is automatically reset and the new speed is applied.
Cancel	Cancels configuration modifications.
Modbus Serial Data Consistency
Enabled	Allows an internal copy of the input data registers (3000-3499 or 13000-13499) to be kept since the first read request is received until the second read request is received OR until the monitoring timeout is elapsed. Is enabled by default when the I/O modules configuration need more than 124 words to read the data of the input.
Cancel	Cancels the configuration settings.
Apply	Saves the configuration settings.