A high-performance and ease-of-use implementation of the Modbus protocol written in Java. Supports ASCII, RTU, TCP, and UDP transports as slave or master, automatic request partitioning and response data type parsing.
active 2023-08-15 → 2026-06-15 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1036 days from 2023-08-15 to 2026-06-15. Pushes: 3 total, peak 1 in a day. Pull requests: 6 total, peak 1 in a day. Issues: 6 total, peak 1 in a day. Comments: 13 total, peak 3 in a day. Stars: 235 total, peak 3 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| benji811124 | 3 | 1 | 2 | 0 |
| fdj0926 | 2 | 0 | 0 | 2 |
| jdzhang1221 | 2 | 0 | 0 | 1 |
| 8502596 | 2 | 0 | 0 | 1 |
| ly2837 | 2 | 0 | 2 | 0 |
| kay07 | 2 | 0 | 0 | 2 |
| KouShenhai | 2 | 0 | 0 | 1 |
| WSD2169-huangquan | 1 | 0 | 0 | 1 |
| wgaofei | 1 | 0 | 0 | 1 |
| SummerMineJack | 1 | 0 | 0 | 1 |
| jpuccinit | 1 | 0 | 0 | 0 |
| lijian0706 | 1 | 0 | 0 | 1 |
| senselesscn | 1 | 0 | 0 | 1 |
| l505654754 | 1 | 0 | 0 | 0 |
| long-chin | 1 | 0 | 1 | 0 |
| dependabot[bot] | 1 | 0 | 1 | 0 |
| yyds-123 | 1 | 0 | 0 | 0 |
| moyaoo | 1 | 0 | 0 | 1 |
| jazdw | 1 | 1 | 0 | 0 |
| dhirajthaokar | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue#77KouShenhai2025-09-03 10:47Maven warehouse certificate has expired, please update the certificate
- Issue comment#77KouShenhai2025-09-02 06:31Maven warehouse certificate has expired, please update the certificate
- Issue comment#77lijian07062025-09-02 06:06Maven warehouse certificate has expired, please update the certificate
- Pull request#76dependabot[bot]2025-07-12 01:53
- Issue comment#64fdj09262025-07-02 08:16请问各位大佬，No recipient was found waiting for response for key
- Issue comment#64fdj09262025-07-02 08:15请问各位大佬，No recipient was found waiting for response for key
- Issue comment#64kay072025-07-02 04:02请问各位大佬，No recipient was found waiting for response for key
- Issue comment#61senselesscn2025-05-21 03:27com.serotonin.modbus4j.exception.ModbusTransportException: Unsupported IP protocol id: 19532 at
- Issue comment#60wgaofei2025-03-29 06:45创建 createTcpListener 如何让多个从站跟你建立连接
- Issue comment#37jdzhang12212024-10-23 15:09How to write multi values that are not continuous in one request?
- Issue#74jdzhang12212024-10-23 15:06Multiple read data errors
- Issue comment#31SummerMineJack2024-10-08 07:52NPE for trying to read data from slave ID 0
- Issue comment#7385025962024-09-13 07:36请问如何解析16功能码的数据 WriteRegistersRequest 似乎应该暴露 getData 方法
- Issue#7385025962024-09-13 03:22请问如何解析16功能码的数据 WriteRegistersRequest 似乎应该暴露 getData 方法
- Pull request#72ly28372024-09-04 13:48
- Pull request#72ly28372024-08-26 13:36
- Issue comment#22WSD2169-huangquan2024-07-12 02:30java.lang.NoClassDefFoundError: com/serotonin/messaging/MessagingExceptionHandler
- Pull request#71benji8111242024-06-19 02:21
- Pull request#71benji8111242024-06-18 21:23
- Issue#70l5056547542024-05-13 08:17StreamTransport::removeConsumer方法bug
- Issue#69dhirajthaokar2023-11-20 10:57have anyone code for serial Modbus RTU Slave program
- Issue comment#64moyaoo2023-10-30 15:19请问各位大佬，No recipient was found waiting for response for key
- Pull request#68long-chin2023-10-30 04:01
- Issue#67yyds-1232023-10-19 09:38我创建了一个TCP从站 如何获取连接我主站的ip
- Issue comment#63kay072023-08-31 06:45请问有在线离线的处理吗
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 235 stars here means stars gained during the window, not the repo's star count.