1. ModScan Overview
1.1 Document/View Architecture
1.2 Modbus Data Definition
1.3 Display Formats
1.4 Connecting to a Modbus Network
1.4.1 Direct Serial Connections
1.4.2 Modem Connections
1.4.3 Network Connections
2. Menu Commands
2.1 File menu
2.2 Connection menu
2.3 Setup menu
2.4 View menu
2.5 Window menu
2.6 Help menu
3. Tool & Status Bars
3.1 Toolbar
3.2 Format Selections
3.3 Status Bar
4. Testing Features
4.1 Writing Data to the Modbus
4.2 Message Counters
4.3 Observing Serial Traffic
4.4 Capturing Data to Text File
4.5 User Defined Commands
4.6 Scripts
5. Using ModScan with a Database
6. Using OLE Automation
6.1 Overview
6.2 Automation Routines
7. Distribution/Registration
7.1 Pricing
7.2 Licensing
7.3 Support
7.4 Other Products
1. ModScan Overview
The ModScan application operates as a MODBUS mastermodbus_protocol device
in either RTU or ASCII transmission modes. ModScan may be used to access
and modify data points contained in one or more MODBUS slave devices
connected to the PC via a serial port, modem, or network. ModScan supports
the standard MODBUS message types 01-06, 15 & 16, as well as providing
the ability for you to exercise special features of a slave device by
transmitting custom command strings and observing the response. ModScan
is a useful test and diagnostic tool for verifying the proper slave
response to MODBUS queries as well as being a low cost data collection
tool for interfacing data into PC database and spreadsheet applications.
1.1 Document/View Architecture
ModScan utilizes the standard Windows Multiple-Document-Interface, (MDI),
architecture for displaying modbus data to the user. Each document
represents a series, (array), of modbus data points identified by the
following parameters:
Slave Device Address Represents the physical device attached to
the modbus network
Data Type Internal data representation, (i.e. input, coil, register)
Data Address Point address within the device
Length Number of points to scan/display
Associated with each document is also a timer, which is used to
periodically scan new data from the defined slave and refresh the
display. The modbus data definition is accessible from the ModScan
menu or via edit controls in the top splitter window of the document
display. As new data is obtained from the slave device, it is
written to the bottom splitter window in one of several formats,
depending upon your preference. The size of each document display
window is adjustable via the splitter control.
1.2 Modbus Data Definition
The upper half of each Document's View represents the data selected for
display, (and possible capture to a historical data file). In most
testing applications, the ModScan will only be connected to a single
modbus slave device, however, in a multidrop modbus network, there may
be several devices accessible from a single connection. The "Device Id"
edit control allows you to specify the slave address for the source of
the data. Likewise, edit controls are available to select the point
type, data address, and number of data points to access.
Notice that the modbus protocol uses a 5-digit representation for the
slave data address which infers the point-type. For example,
INPUT STATUS values are always represented in the range 10001-19999:
HOLDING REGISTERS are displayed as 40000-49999. The ModScan application
uses the standard notation for displaying data in the bottom splitter
window, however the address specified in the upper splitter address edit
control assumes a 4-digit physical point address. This address, coupled
with the point-type specifier completely defines the data to be accessed
in the slave device.
The upper splitter window also contains two counters which are used to
tally the number of data requests made from this document to the modbus
connection and the number of valid slave responses received in reply.
A button is available within the display which resets the counters
associated with this document.
1.3 Display Formats
As data is received from the slave device, it is displayed to the lower
splitter view of the associated document. 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.
Modbus register data may be displayed in any of the following formats:
Binary Data displayed as 16 discrete values.
Decimal Ranges from -32767 to 32768
Hexadecimal 0000-ffff
Floating Point IEEE Standard Floating Point Notation
(Requires two registers per value)
Word-Swapped Floating Point
Inverted Floating Point used by some processors
Double-Precision Floating Point
64-bit Floating Point Notation
Word Swapped Dbl Precision
Inverted 64-bit Float Values
1.4 Connecting to a Modbus Network
1.4.1 Direct Serial Connections
ModScan may be used to obtain data from modbus slave device connected
to the PC in one of three basic physical arrangements. The most common
connection is via any one of the four available PC serial COM ports.
ModScan uses the standard Win32 software drivers for communication with
the COM ports, thereby providing support for any hardware serial boards
which may be installed in the Windows operating system, (including RS-232,
RS-485, etc.). You have complete control over the operating characteristics
of the serial connection by selecting the appropriate baud rate, parity,
and control line, (handshaking), properties to match the slave device(s).
1.4.2 Modem Connections
In remote testing situations, the ModScan application may be used to
communicate with a modbus network over a dedicated modem connection.
ModScan supports the TAPI, (telephony application interface), standard
implemented in Windows and Windows NT. If selected, the modem connection
dialog allows you to enter a phone number for dialing. Any TAPI device
configured within the Windows operating system is available for use.
It is also possible to connect via modem to a remote system utilizing
the built-in networking characteristics of Windows '95 & NT. To do this,
you will need to configure the ModScan application to connect via a TCP/IP
connection which has been setup within Windows to automatically dial and
establish a PPP connection with another Windows machine which is connected
directly to the slave device(s) you wish to use. In this case, ModScan
operates as if it were using a network card connected directly to a
modbus to tcp/ip bridge device.
1.4.3 Network Connections
ModScan allows modbus communications to occur over a TCP/IP network.
This feature requires the use of a modbus to TCP/IP bridge device which
can service network requests from the network and obtain the data from
a connected slave device prior to responding to queries from the ModScan
application. A bridge device operates as a network server, providing
support to numerous client applications distributed over the network.
WinTECH Software provides such a server for interfacing to a single
serial modbus network. Third-party vendors may provide various solutions
for interfacing TCP/IP to modbus devices via other hardware, (i.e. modbus
plus, etc.). If the interfacing specification for these network bridge
devices is available in the public domain, they may be included in future
releases of the ModScan application. If you have the need to use ModScan
with a third-party vendor's equipment, please contact the WinTECH Software
support line for consideration.
2. Menu Commands
2.1 File menu
The File Menu offers the following commands:
New Creates a new ModScan document. Each document represents
a different block of data from a modbus device.
Open Opens an existing document.
Close Closes an open document.
Save
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Modscan32.rar (57个子文件)
Modscan32
ms32frm.cfg 222B
ModScan中文版.lpu 96KB
Book1.xls 42KB
ModScan32.cnt 2KB
speedo.bmp 111KB
Custom2 3KB
MSSCCPRJ.SCC 196B
Modsim32
Modsim.lpu 103KB
ModSimEx.frm 3KB
MODSIM32.HLP 81KB
Modbusl.dll 76KB
ModSim32.tlb 3KB
英文版文件
ModSimEx.frm 3KB
Modbusl.dll 76KB
ModSim32.exe 368KB
WS_FTP.LOG 2KB
ModSim32.cnt 719B
MODSIM32.GID 11KB
汉化版文件
ModSimEx.frm 3KB
Modbusl.dll 76KB
ModSim32.exe 360KB
ms32comm.cfg 191B
ModSim32.ini 79B
注册码.TXT 328B
ModSimEx.vbw 49B
modsim32.cfg 28B
ModSimEx.vbp 722B
ModSim32.exe 360KB
ModScan32.chm 48KB
otemp.bmp 48KB
更多软件点击进入.url 224B
example1.csv 3KB
英文版文件
ms32frm.cfg 184B
modbusm.dll 73KB
ModScan32.exe 742KB
ex1.frm 20KB
ModScan32Ex.vbp 1KB
modbusm.dll 73KB
modbus1.mdb 264KB
ModScan32.exe 726KB
汉化版文件
ms32frm.cfg 197B
modbusm.dll 73KB
ModScan32.exe 726KB
ex1.frm 20KB
Custom1 4KB
安卓游戏下载.url 228B
ex1.frm 20KB
temp.bmp 48KB
使用说明.txt 956B
tach.bmp 75KB
ModScan32Ex.vbw 49B
注册码.TXT 305B
oilp.bmp 45KB
单机游戏下载.url 224B
ModScan32.tlb 3KB
volt.bmp 48KB
ScanGuide.txt 28KB
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