• Modscan32

Modscan 32 Project MGL Esteban m. And understand How to use modscan32 - Duration: 39:56. Saud Automation 11,570 views. CoBox Modbus Universal Thin Servers Installation Guide. Software are very important. The most common example of Modbus master devices is the. Modscan32 is a 32-bit Windows application that serves as a Modbus master device for protocol testing and performing Modbus serial & TCP/IP data collection. CoBox Modbus Universal Thin Servers Installation Guide. Software are very important. The most common example of Modbus master devices is the.

Details ModScan32. Application Description ModScan32 is an expanded version of the popular 16-bit application. It is a Win32 application designed to operate as a MODBUS Master device for accessing data points in a connected PLC compatible slave device.

Any holding register that exists within the controller can have its contents changed by this message. The values are provided in binary up to the maximum capacity of the controller. Unused high-order bits must be set to zero. When used with slave address 00, all slave controllers will load the specified register with the contents specified. • FORCE MULTIPLE COILS (FUNCTION CODE 15) Function 15 allows the user to modify the contents of a group of consecutively addressed coils. The following example forces 10 coils starting at address 20, (13 HEX).

Application Overview A. Document/View Architecture B. Modbus Data Definition C. Display Formats D. Connections II.

The line feed character also serves as a synchronizing character which indicates that the transmitting station is ready to receive an immediate reply. • Function Field The Function Code field tells the addressed slave what function to perform. MODBUS function codes are specifically designed for interacting with a PLC on the MODBUS industrial communications system.

The protocol provides for one master device and up to 247 slave devices on a common line. The ASCII mode uses twice as many characters as the RTU mode, but decoding handling the ASCII data is easier. Additionally, in the RTU mode, message characters must be transmitted in a continuous stream. In the ASCII mode, breaks of up to one second can occur between characters to allow for a relatively slower master. Error Detection There are two types of errors which may occur in a communications system: transmission errors and programming errors. • The step by step procedure to form the CRC-16 is as follows: Load a 16-bit register with all 1’s.

The non-standard data format requires using Excel’s Import Wizard which takes more steps. However, there is a work-around for this (see csv.exe below). • Poor trend graphing capability. Difficult to set up and change. • When trying to change a value, the focus doesn’t start in the value text box, requiring an extra click. • When displaying floating point values, if the window isn’t tall enough, Modscan32 displays multiple columns, but the text from one column overlaps the next. • When displaying floating point values, Modscan32 displays blank lines between every other value.

Modbus Master ActiveX Control G. Modbus Slave ActiveX Control IV. Individual Application User Manuals A. Modbus Master ActiveX Control F. Modbus Slave ActiveX Control.

The dialog will close and the displayed value of the corresponding CT Amps register should change accordingly. • If the CT rating is the same for all three phases, you can set all three to the same value at once by writing to the Global CT Amps register (1603). • When you are done you can select “File->Save As” and specify the file name “CtAmps” to save the changes you made so the next time you run Modscan32, you can select “File” and click on “CtAmps” so you don’t have to re-enter the same register addresses etc. How to Read All WattNode Registers Using Preconfigured Modscan32 Document Files Since there is no universal standard for mapping Modbus register addresses onto specific slave device readings (because the Modbus standard only specifies the low-level communications data transport layer, not the high-level application layer or data types), some customization is required in order to specify which data registers should be polled from a specific slave device and how the data should be formatted. ModScan32 saves this configuration data in special “documents”, where each document corresponds to a continuous series of Modbus holding registers. Each document window displays register data of the same type and format (floating point or 16-bit integer etc.). To save time in configuring Modscan32, preconfigured ModScan32 documents are available from CCS in a ZIP archive file named, “Modscan32ForWattNode.zip”.

The toolbar is detachable and dockable by clicking the mouse on the toolbar background and dragging it to the desired location within the ModScan application window. To hide or display the Toolbar, choose Toolbar from the View menu (ALT, V, T). Toolbar buttons, (from left to right), allow you to: Open a new document.

This selects the global CT Amps register CtAmps and the CT Amps registers for each of the three phases ( CtAmpsA, CtAmpsB, and CtAmpsC). • Select “Connection->Connect” and under “Connect Using”, select the COM port number of your adapter and make sure the baud rate matches the WattNode meter’s (9600 if DIP switch 8 is off; 19200 if it is on). No hardware flow control is needed for most USB/RS-485 adapters which have the “auto-enable” feature. • Click the “Protocol Selections” button and make sure that the “Transmission Mode” is set to “RTU”. The “Slave Timeout” should be “1000 ms”. And for the “Delay Between Polls”, 500 ms. Is a reasonable poll rate.

• When displaying floating point values, Modscan32 displays blank lines between every other value. • Runs only on Windows. No Linux or Apple OS version is available. Quick Start Guide This section describes how to connect and configure a WattNode meter with Modscan32, set the CtAmps, and make some basic measurements. It also discusses how to use ModScan32 to communicate with WattNode meters via the two most common types of SDA (Serial Device Adapter): • A USB/RS-485 adapter. • An Ethernet/RS-485 adapter.

Open Opens an existing document. Use this command to open an existing document in a new window.

The basic operation of the application is depicted in the typical Windows display below: The specified MODBUS slave device is polled by the ModScan32 document on a cyclical basis specified by the user. Any address supported by the device may be scanned and the associated values listed on the bottom of the display. Communications errors or Exception Responses returned by the slave device are listed on the ModScan status line.

The Modbus Protocol A. Message Formatting B. Error Detection C.

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Any errors incurred during the exchange of information will be displayed on the first line. The font and colors used to display the data is configurable via the View, Config menu options. • File Menu The File menu offers the following commands: New Creates a new document. Use this command to create a new document in ModScan.

Any holding register that exists within the controller can have its contents changed by this message. The values are provided in binary up to the maximum capacity of the controller. Unused high-order bits must be set to zero. When used with slave address 00, all slave controllers will load the specified register with the contents specified. • FORCE MULTIPLE COILS (FUNCTION CODE 15) Function 15 allows the user to modify the contents of a group of consecutively addressed coils. The following example forces 10 coils starting at address 20, (13 HEX). The two data fields, CD = 1100 1101 and 00 = 0000 0000, indicate that coils 27, 26, 23, 22 and 20 are to be forced on.

Status Bar The status bar is displayed at the bottom of the ModScan window. To display or hide the status bar, use the Status Bar command in the View menu. The left area of the status bar describes actions of menu items as you use the arrow keys to navigate through menus. • Testing Features Writing Data In order to write a MODBUS data point in a slave device, the communications with the device must first be initiated by scanning a series of data points by configuring the correct addressing information and initiating a polling cycle. Once the data is successfully displayed, double-clicking the address/value portion of the screen will initiate a dialog box which allows the value to be changed. • User Defined Messsages Use this command to customize a command string for transmission to a designated modbus slave device. This command is useful for observing the slave response to non-standard modbus queries or to test its reaction to requests for data which may not be available.

These locations receive their vales from devices connected to the I/O structure and can only be referenced, not altered from within the controller nor via MODBUS. The example below requests the contents of register 30009 in slave number 17. • FORCE SINGLE COIL (FUNCTION CODE 05) This message forces a single coil either On of OFF. Any coil that exists within the controller can be forced to either state, (ON or OFF).

After copying the WattNode meter configuration files from the Modscan32ForWattNode.zip file into the same C:Modscan32 folder that you installed the Modscan32 program (overwriting the existing configuration files), you can launch Modscan32 by double-clicking on Modscan32.exe. Upon launching, Modscan32 will display some “Registration” dialog boxes. After clicking “OK” to each dialog, Modscan32 will then try to connect to the meter and if successful, it will display and update the five documents listed above with new data every 2 or 3 seconds. If your USB/RS-485 adapter has been assigned to a different COM port then an error message will appear that says, “Connection Failed!”. In that case, you need to tell Modscan32 which COM port to use by clicking the Connection menu bar item and selecting the “Connect” item from the list. A dialog box that appears with a “Connect Using:” list box that allows you to select the proper COM port (Note: The Windows Device Manager applet displays all serial COM ports under the Ports device group). After you’ve selected the right port, click OK and Modscan32 should then start polling the WattNode meter and updating the displayed documents after a few seconds.

Error Detection C. Modbus/TCP extensions III. Software Descriptions A. Application Overviews B. Modbus Master ActiveX Control G.

• Display Options The Display Options menu offers the following commands: Show Data This default view configuration displays data values as obtained from the modbus slave device. ModScan is normally configured to display modbus data points in the lower splitter view of the associated document. Data points are displayed in order from top to bottom, left to right. Data is displayed using the current colors and font selection.

If the bit shifted out to the right is zero; return to step 3. • Shift 1 Polynomial 0100 1010 0000 0000 1001 0000 1100 0001 Shift 2 Polynomial 1110 0111 1010 0000 0000 0000 1001 0100 0000 1101 1110 0001 1 Shift 3 Polynommial 1101 0110 1010 0000 1000 0000 0010 0010 0000 1111 0111 0001 1 Shift 4 Shift 5 Polynomial 1100 0110 0011 1010 1000 0100 0010 0000 0010 0001 0000 0000 0110 0011 1001 0001 0 1 Shift 6 Shift 7 Shift 8 1001 0100 0010 0001 0010 1001 0100 0010 0000 0000 1000 0100 1000 0100 0010 0001 HEX 12 HEX 41 TRANSMITTED MESSAGE WITH CRC-16 • LRC (Longitudinal Redundancy Check) The error check sequence for the ASCII mode is LRC. The error check is an 8-bit binary number represented and transmitted as two ASCII hexadecimal (hex) characters. The error check is produced by converting the hex characters to binary, adding the binary characters without wraparound carry, and two’s complementing the result. At the received end the LRC is recalculated and compared to the sent LRC. • MODBUS Message Types ASCII Framing Framing in ASCII Transmission mode is accomplished by the use of the unique colon, (:), character to indicate the beginning of frame and carriage return/line feed, (CRLF), to delineate end of frame.

• FORCE SINGLE COIL (FUNCTION CODE 05) This message forces a single coil either On of OFF. Any coil that exists within the controller can be forced to either state, (ON or OFF). Coils are numbered from zero (i.e. Coil 1 is address 0000, coil 2 is address 0001, etc.). The data value 65,280, (FF00 HEX) will set the coil ON and the value zero will turn it off. All other values are illegal and will not effect the coil. • PRESET SINGLE REGISTER (FUNCTION CODE 06) Function 06 allows the user to modify the contents of a holding register.

WinTECH Software Industrial Automation Suite of Applications for the Windows O.S. Introduction A. Purpose of this manual B. Software Distribution Method C. Basic Software License D. How to contact WinTECH Software II.

Error Detection C. Modbus/TCP extensions III. Software Descriptions A. Application Overviews B. Modbus Master ActiveX Control G. Modbus Slave ActiveX Control IV.

Individual traces can be enabled or disabled by clicking the corresponding pen button and checking or un-checking the Enabled box. The register address is entered in the “Point Address:” field.

You can ignore this section if you are using a USB/RS-485 adapter. Since the WattNodeAutoStart.txt Auto-start configuration file was set up for a USB/RS-485 adapter on the COM10 port, the “Connection Failed!” error message will appear when you launch Modscan32. To fix this, select “Connect” and under the “Connect Using:” list box, select “Remote TELNET Server” and enter the TCP/IP address and port of your SDA in the “IP Address:” and “Service Port:” boxes, respectively.

Enter the required Modbus Node number (the default node is 1). THOMSON TECHNOLOGY ● 9087A – 198 STREET, LANGLEY, BC CANADA V1M 3B1 TELEPHONE: (604) 888-3381 ● EMAIL: info@thomsontechnology.com ● www.thomsontechnology.com PM085 REV 1 08/08/28. • Click the Select All button then Download. Once download is complete a confirmation will appear. Click OK to re-start the Gateway. Set-up complete.

Modbus Slave ActiveX Control IV. • • Purpose of this manual This manual represents a composite technical description of the applications offered by WinTECH Software to support data acquisition and manipulation using the modbus communications protocol. Topics covered include the distribution and licensing methods utilized to market the software as well as detailed user’s manuals for each application. • Software Distribution Method The WinTECH Software suite of Industrial Automation products is distributed primarily via the internet. Fully-functional demo applications are available from the following Web-Site: Each software application may be downloaded for evaluation and freely distributed among potential users without cost or obligation. Each application is in some fashion time-limited, allowing free and unrestricted use for a pre-defined period of time. • WinTECH Software License Agreement YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE USING THE ACCESS CODES SUPPLIED HEREIN.

• Close the dialogs by clicking the “OK” button and at that point, Modscan32 should start polling the WattNode Modbus meter. The “Number of Polls” will start incrementing and if the RS-485 interface is properly connected to the adapter, the “Number of Valid Slave Responses” should increment at the same rate. • To set the CT Amps settings to different values for each of the three phases, double-click on the displayed register which will pop up a “Write Register” dialog that allows you to enter the new value.

Modscan32

Installing it is as simple as downloading the free demo Modscan32.zip file and copying its contents into a folder named, “C:Modscan32”. How to use Modscan32 with a COM port to Configure the WattNode meter’s CT Amps Settings The installation details for USB/RS-485 adapters varies depending on the particular model but the main steps are the same regardless of model.

Use this command to manually force a group of coils to a given state, (on/off). The ability to address multiple coils in a slave depends upon the operating characteristics of the device. ModScan uses modbus message 15, (Force Multiple Coils), to transmit the request to the designated slave. • The View menu offers the following commands: Toolbar Shows or hides the toolbar. Status Bar Shows or hides the status bar. Display Bar Shows or hides the format toolbar used to select the display format for modbus registers.