Modbus Monitor XPF
Modbus Monitor XPF application allows communication to Modbus devices using a Windows-based Personal Computer. The application is currently distributed in Microsoft Store and runs on the Windows Platform. The application can be downloaded and installed on a trial basis to try the features before purchasing the full license.
The Modbus Monitor XPF application contains two applications in one and each application contains two communication options. The application contains Modbus Client and Modbus Server along with Serial and TCP options for each option.
This guide helps you get started with the basic operation and covers some of the advanced scripting commands available for purchased applications.
The Main Screen is divided into three parts (1) Control Panel (2) Navigation Panel (3) Monitor Point List Table
Shows Options for Tab chosen in Navigation Panel
Details for each option in the control panel can be found in later sections of this document.
Shows Main Features of the application as Tabs (Shows List, Master, Server, etc.) similar to File Menu in classic Windows Application.
Details of each Tab or feature can be found in sections listed in this document
Monitor Points List Table
Shows all monitor points defined for Modbus Master and/or Server mode
Add or Remove monitor points in the List Tab
Save: Saves Current File in CSV format
Save As: Saves File with another name in CSV format
Open: Open Another File Saved earlier with Modbus Monitor XPF (CSV Formatted).
Paste: Paste Clipboard Row or Item or Monitoring Points to the end of the list
Copy: Copy the Selected Single or Multiple Row(s) to Clipboard. Multiple sequential rows can be selected with Shift-Click first and last row. Multiple rows can be selected using the Control-Click in any order.
Cut: Copy the Content of the current item to the clipboard and delete the item from the list.
List (Manage Monitor Points (AKA Row or Item)
+ Add: New Monitor Point with Default Values
- Remove: Selected Monitor Point from Monitor Point List Table
Delete All: Delete All monitoring points from Monitor Point List Table
Offset: Set One Based mode. Set Offset to 1 or 0 for the Modbus Address listed in the Address Column. In other words, addresses values in the list start with 1 (1-65536) or 0 (0-65535)
Left Number: Shows row number of the currently selected row.
Filter Box: Filter the list matching the value contained in the Name column or Address column.
Show or Hide Communication Log.
The same button is also available in the header menu.
Text/String value of the Register
Example: Water Temperature
6 Digit Modbus register value
Integer Value (0 to 465536)
Address are 0 based or 1 based depending on "One Based" check-mark in List Tab
Example: 000001 or 100001 or 400001 or 300001
4x Example: 400001 (One based checked, 1st Register, Function 3, Read/Write)
4x Example: 400000 (One based un-checked, 1st Register, Function 3, Read/Write)
3x Example: 300001 (One based checked, 1st Register, Function 4, Read Only)
0x Example: 000001 (One based checked, 1st Register, Function 1)
1x Example: 100001 (One based checked, 1st Register, Function 2)
Unit ID or Slave ID of the register for Master and Server
Byte Value (1-247)
Value to be multiplied and Offset Added to result obtained from the Server
Server Mode: Gain and Offset will be applied before the value is sent to remote Master
Float Value Column = Gain x [Modbus Value Obtained] + Offset (Linear Formula)
Example: 1.00 (default Gain, Multiple 1), 0.00 (Default, no Offset)
Converted Data Value from Modbus poll
2 Registers are polled for 32-bit Data Type
4 Registers are polled for 64-bit Data Type
Displays value based on the selection:
BIT = Binary value
INT16 = Display as 16-bit Signed value
UINT16 = Display as 16-bit Unsigned value (Default)
INT32 = Display as Signed 32-bit value
Two Registers are automatically polled
UINT32 = Display as Signed 32-bit value
FLOAT32 = Display as 32-bit Float
INT64 = Display as 64-bit Integer
UNIT64 = Display as 64-bit Unsigned Integer
DOUBLE64 = 64-bit Double Float
HEX = Display as Hex value (16-bits)
STRING = Display as Text Value (Will be added in Future)
Byte and Word Swap when multiple registers are polled based on the Data Type
Swaps multiple Registers based on the selection:
ABCD_BE: ABCD swap or Big-Endian (Default)
CDBA_LE: CDBA swap or Little-Endian
BADC_BEBS: BADC swap or Big-Endian Byte Swap
CDAB_LEBS: CDAB swap or Little-Endian Word swap
Display Value from Master based on Data Type
Send Value to Server based on the Data Type
Modbus Master: Shows value polled from the remote device after applying Swap type, Gain/Offset, and Data Type
Modbus Server: Value to send to the remote Master device. Click a cell to change send the new value to send to remote Master (All conversions are applied per settings before sending the new value)
The Modbus Master or Client Mode (tab) polls remote Modbus TCP or RTU devices and displays data in the selected format.
Modbus TCP Settings
Select Modbus TCP , Modbus UDP, or Modbus Serial Interface
DEFAULT: Modbus TCP over TCP/IP
RTU: Modbus RTU over TCP/IP
ASCII: Modbus ASCII over TCP/IP
DEFAULT: Modbus TCP over UDP
RTU: Modbus RTU over UDP/IP
ASCII: Modbus ASCII over UDP/IP
DEFAULT or RTU: Modbus RTU over serial COM port
ASCII: Modbus ASCII over serial COM port
IP Address or Hostname of remote TCP server
Connection Timeout: Timeout before reconnecting to remote host after connection lost
Port: Modbus Port for remote server
Poll Rate Settings
Response Time out
Modbus Frame waiting time to gather all bytes from the remote server
For example: Wait 3000ms or 3 seconds to gather all bytes up to CRC or tag short frame error
Delay before sending next frame or time to wait between each item in the list, in milliseconds.
For example: Wait 20ms before polling next item in the list
Delay before starting full list scan or time to wait before polling full list, in milliseconds.
For example: Wait 1 second before polling entire list again
COM Port Settings (Modbus RTU)
Select COM Port for Modbus RTU Polling
Shows Serial port-related settings
Write Value Settings
Atomically Select Single or Multiple Coil or Registers based on the Data Type selected
Enable Write from Value Column
Manually select function code for Write for Coil(s)
Select function code for Write for Register(s)
Modbus TCP Server Settings
Port to use for Modbus TPC Server on PC
Enable the Modbus TCP Server. Uncheck when using the Modbus RTU server only.
Modus RTU Server Settings
Select COM Port for Modbus RTU Server. Multiple RTU servers are started when selecting multiple Serial ports are selected.
Shows Serial port-related settings
Enables Modbus RTU Server Mode on Serial Ports. Uncheck when using TCP server only