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ESP32 MODBUS协议栈
Posted: Mon Aug 09, 2021 9:52 am
by YONGWONG
ESP32 MODBUS协议栈如何让MODBUS TCP和MODBUS RTU可以同时使用？单独开任务均可执行，但同时开任务就只能执行其中一个？请问应该怎么做呢？
Re: ESP32 MODBUS协议栈
Posted: Tue Aug 10, 2021 1:03 am
by YONGWONG
在IDF 4.3中freemodbus组件是否支持多从机多接口类型访问？
Re: ESP32 MODBUS协议栈
Posted: Tue Aug 10, 2021 6:36 am
by ESP_alisitsyn
@YONGWONG,
Unfortunately the ESP_Modbus currently does not support multi master or multi slave communication in one device.
It is possible to install one Modbus slave and one Modbus master simultaneously in one device (the fix is not merged, requires patch to apply). The fix is merged and will be available in github commit 59444334249d4940b59795c8e0df779ec25333bd.
The serial master and slave have been tested and work well simultaneously. The Modbus TCP Slave + RTU Master is not tested enough but it is possible to implement.
The Modbus RTU over TCP support is not yet implemented (is in progress).
Re: ESP32 MODBUS协议栈
Posted: Fri Aug 13, 2021 2:32 am
by ESP_WangYX
YONGWONG wrote: ↑Mon Aug 09, 2021 9:52 am
ESP32 MODBUS协议栈如何让MODBUS TCP和MODBUS RTU可以同时使用？单独开任务均可执行，但同时开任务就只能执行其中一个？请问应该怎么做呢？
当前，ESP32 Modbus可以同时运行一个Modbus TCP 主机和一个ModBus RTU 从机，或者同时运行Modbus TCP 从机和 Modbus RTU 主机。尚不支持同一个设备运行多个主机、或者从机。不知道你的需求具体指哪些。
Re: ESP32 MODBUS协议栈
Posted: Thu Sep 02, 2021 7:27 am
by YONGWONG
我是想实现多个RTU和tcp的从机
Re: ESP32 MODBUS协议栈
Posted: Thu Oct 14, 2021 2:56 am
by ESP_Eavo
您好，目前不支持多从机的功能。该功能正在内部评估开发中，请您关注相关进展。
谢谢。
Re: ESP32 MODBUS协议栈
Posted: Thu May 19, 2022 4:46 am
by sjdczw
ESP_Eavo wrote: ↑Thu Oct 14, 2021 2:56 am
您好，目前不支持多从机的功能。该功能正在内部评估开发中，请您关注相关进展。
谢谢。
你好，目前的进展如何，项目也遇到同样的问题了
Re: ESP32 MODBUS协议栈
Posted: Wed Jun 15, 2022 12:01 pm
by ESP_alisitsyn
Hello @sjdczw,
Support of multi-master and multi-slave Modbus is not ready.