ModTest Pro
MODBUS Testing Utility
#1 Keyword Rankings
Today
Top 10 Rankings
Today
Top 30 Rankings
Today
Top 100 Rankings
Today
Description
MODTest Pro is a fast and simple utility for testing MODBUS devices over WiFi or Bluetooth. It supports a wide range of MODBUS functionality, including the ability to operate as a client or server (master or slave). It supports both TCP and UDP connections when using WiFi and it supports serial communication via many BLE modules equipped with Bluetooth 4 or higher that provide UART bridging capability.
Tap the Setup button to enter the appropriate parameters for your device. Return to the main display to send your poll and view the data (when in client mode) or accept and respond to data requests from a master device (when in server mode).
The Comm Setup view allows a number of addressing, timing, and communication mode parameters to be configured. Besides a comprehensive user guide, the app also has extensive built-in help. Tap on any yellow label or info button for a description of that parameter.
The app supports MODBUS-TCP, -RTU, and -ASCII protocols, and they can all be transmitted via TCP, UDP, or Bluetooth. It also supports the GSI protocol which was developed in 1985 and was the first tank gauging protocol to use standard RS232/RS485 serial data communication. The app also features a User Data Mode that allows you to enter a complete poll string independent of any particular protocol. This allows transmission of special ASCII data polls or any MODBUS command that is not natively supported by the app.
The following MODBUS function codes are supported:
1 – Read Coils
2 – Read Discrete Inputs
3 – Read Holding Registers
4 – Read Input Registers
5 – Write Single Coil
6 – Write Single Register
7 – Read Exception Status
15 – Write Multiple Coils
16 – Write Multiple Registers
17 – Report Server ID
Addresses must be entered in standard MODBUS format (0-65535). If you are accustomed to specifying register addresses in "Modicon format", simply subtract 1 from the Modicon Address and delete the prefix number. For example, Modicon Holding Register 40101 is equivalent to MODBUS address 100.
The app supports a wide range of data representations including:
Unsigned Integer: 16 bit, 32 bit, and 64 bit
Signed Integer: 16 bit, 32 bit, and 64 bit
Floating Point: 32-bit, and 64-bit using IEEE-754 specifications
Hex Data Strings: 16-bit, 32 bit, and 64-bit
Bit and Byte Representations for Coils & Discrete Inputs
The app also supports the following "reverse modes" of floating point data storage:
Atomic 8-bit Little Endian
Atomic 16-bit Little Endian
PDP Endian
Bit Reversal
When you exit the Comm Setup page, WiFi connections will be established automatically; however, a manual scan must be initiated to find and select a BLE module within range in order to establish a Bluetooth connection. After a successful Wifi or BLE connection, simply tap the Start Poll button to send your poll command (when in client mode). Continuous polling is also supported. When in server mode, the app will wait for and respond to poll requests from a master device once a WiFi or BLE connection is made. The app scans for UART Service & TX/RX Characteristic UUIDs from BLE devices by a number of manufacturers. The UUIDs that are supported are detailed in the app User Guide.
A communication status window will show the raw byte strings that are sent to and received from a remote device. Received data will also be shown in tabular form when in client mode and communication events will be shown when in server mode. The app also tracks a number of communication statistics.
When using WiFi your device must be on the network as the device that you want to test. Be sure to use the Settings app to configure your network settings before using the app or you will surely get socket connection errors.
The app contains no ads or in-app purchases and we will never nag you for reviews, although we do appreciate them. If you have any issues with the app, please send us a message before posting a negative review and give us a chance to address your concerns.
Hide..
Show more..
Tap the Setup button to enter the appropriate parameters for your device. Return to the main display to send your poll and view the data (when in client mode) or accept and respond to data requests from a master device (when in server mode).
The Comm Setup view allows a number of addressing, timing, and communication mode parameters to be configured. Besides a comprehensive user guide, the app also has extensive built-in help. Tap on any yellow label or info button for a description of that parameter.
The app supports MODBUS-TCP, -RTU, and -ASCII protocols, and they can all be transmitted via TCP, UDP, or Bluetooth. It also supports the GSI protocol which was developed in 1985 and was the first tank gauging protocol to use standard RS232/RS485 serial data communication. The app also features a User Data Mode that allows you to enter a complete poll string independent of any particular protocol. This allows transmission of special ASCII data polls or any MODBUS command that is not natively supported by the app.
The following MODBUS function codes are supported:
1 – Read Coils
2 – Read Discrete Inputs
3 – Read Holding Registers
4 – Read Input Registers
5 – Write Single Coil
6 – Write Single Register
7 – Read Exception Status
15 – Write Multiple Coils
16 – Write Multiple Registers
17 – Report Server ID
Addresses must be entered in standard MODBUS format (0-65535). If you are accustomed to specifying register addresses in "Modicon format", simply subtract 1 from the Modicon Address and delete the prefix number. For example, Modicon Holding Register 40101 is equivalent to MODBUS address 100.
The app supports a wide range of data representations including:
Unsigned Integer: 16 bit, 32 bit, and 64 bit
Signed Integer: 16 bit, 32 bit, and 64 bit
Floating Point: 32-bit, and 64-bit using IEEE-754 specifications
Hex Data Strings: 16-bit, 32 bit, and 64-bit
Bit and Byte Representations for Coils & Discrete Inputs
The app also supports the following "reverse modes" of floating point data storage:
Atomic 8-bit Little Endian
Atomic 16-bit Little Endian
PDP Endian
Bit Reversal
When you exit the Comm Setup page, WiFi connections will be established automatically; however, a manual scan must be initiated to find and select a BLE module within range in order to establish a Bluetooth connection. After a successful Wifi or BLE connection, simply tap the Start Poll button to send your poll command (when in client mode). Continuous polling is also supported. When in server mode, the app will wait for and respond to poll requests from a master device once a WiFi or BLE connection is made. The app scans for UART Service & TX/RX Characteristic UUIDs from BLE devices by a number of manufacturers. The UUIDs that are supported are detailed in the app User Guide.
A communication status window will show the raw byte strings that are sent to and received from a remote device. Received data will also be shown in tabular form when in client mode and communication events will be shown when in server mode. The app also tracks a number of communication statistics.
When using WiFi your device must be on the network as the device that you want to test. Be sure to use the Settings app to configure your network settings before using the app or you will surely get socket connection errors.
The app contains no ads or in-app purchases and we will never nag you for reviews, although we do appreciate them. If you have any issues with the app, please send us a message before posting a negative review and give us a chance to address your concerns.
Screenshots
User Rating
0 out of 5
0 ratings in Denmark
Ratings History
Reviews
App doesn't have any reviews yet
Store Rankings
Ranking History
App Ranking History not available yet
Category Rankings
App is not ranked yet
Keywords
Users may also like
| Name | Reviews | Recent release | |
|---|---|---|---|
Writemator - Plain Text Editor
Elegant, Intuitive Writing app
|
0
|
2 years ago | |
Anoc Pro Octave Editor
|
0
|
3 months ago | |
Gear Speed and Tire Size
|
0
|
1 month ago | |
ArtnetControl
|
0
|
1 year ago | |
Odrid HMI
Industrial grade HMI/SCADA
|
0
|
5 months ago | |
ProLink III
|
0
|
1 year ago | |
TE SensorConnect
|
0
|
8 months ago | |
Uptime Mon
Native App for UptimeKuma
|
0
|
11 months ago | |
STE: Simple Text Editor
A simple Text Editor
|
0
|
7 months ago | |
T-Minus Countdown
Important events tracker
|
0
|
6 months ago |
Show More
Revenue and Downloads
Gain valuable insights into ModTest Pro performance with our analytics. Sign up now
to
access downloads, revenue, and more.
App Info
- Category
- Productivity
- Publisher
- Dohmann Engineering Services
- Languages
- English
- Recent version
- 1.06 (1 year ago )
- Released on
- Jun 3, 2021 (3 years ago )
- Also available in
- South Korea, Belgium, Pakistan, Italy, Japan, Kuwait, Kazakhstan, Lebanon, Mexico, Malaysia, Nigeria, Netherlands, Norway, New Zealand, Peru, Philippines, Israel, Poland, Portugal, Romania, Russia, Saudi Arabia, Sweden, Thailand, Turkey, Taiwan, Ukraine, United States, Vietnam, South Africa, Dominican Republic, Argentina, Austria, Australia, Azerbaijan, Brazil, Belarus, Canada, Switzerland, Chile, China, Colombia, Czechia, Germany, Denmark, India, Algeria, Ecuador, Egypt, Spain, Finland, France, United Kingdom, Greece, Hong Kong, Hungary, Indonesia, Ireland, United Arab Emirates
- Last updated
- 1 month ago