At the time of writing, a single-user license costs approximately (roughly $125 USD). This is a perpetual license — you pay once and own it forever.
According to official pricing, a single-user license costs approximately $129 USD , with discounts for volume purchases (e.g., 10+ licenses for $109 each). Risks of Using "Top" Cracked Keygens or License Generators
| 购买数量 (单用户许可证) | 单价 (USD) | 备注 | | :--- | :--- | :--- | | 1 - 2 个 | $129.00 / 个 | 包含所有支持 | | 3 - 9 个 | $119.00 / 个 | 包含所有 永久授权 支持 | | 10 个及以上 | $109.00 / 个 | 包含所有 永久授权 支持 | modbus poll license key top
Quick register reading/writing with a clean graphical interface. Open-Source (Free) Lightweight, multi-register charting and logging. Free Windows Utility ModbusPal Advanced slave simulation for testing master devices. Open-Source (Free) pymodbus (Python Library)
: The trial version is free for 30 days but disconnects communication every 10 minutes. At the time of writing, a single-user license
It may sound obvious, but buying the license is the "top" way to get a key. Here is why it is worth the investment for professionals:
If you cannot purchase directly due to regional payment restrictions, there are authorized resellers. The authorized distributors include: Risks of Using "Top" Cracked Keygens or License
注：表格中的版本主要功能来源于网络用户手册、技术社区文章和部分软件下载页的描述，具体功能细节建议以官方最新发布的用户手册为准。如欲获取最新版功能和详细更新日志，请务必访问官方主页 www.modbustools.com 。
If you do not have the budget for a license and cannot work with the 10-minute demo limitation, consider these excellent open-source or free alternatives:
Obtaining a Modbus Poll license key is a straightforward process: