libmodbus不支持地址0；发出的最小请求地址为1：确切的说，我请求的地址会被加1；

[Hsn200047]

17:58:35 DEBUG context:66 validate: fc-[4] address-1: count-1
17:58:35 DEBUG context:80 getValues: fc-[4] address-1: count-1
17:58:35 DEBUG async_io:298 send: [ReadInputRegistersResponse (1)]- b'0371000000050104020001'
17:58:35 DEBUG async_io:222 Handling data: 0x3 0x72 0x0 0x0 0x0 0x6 0x1 0x4 0x2 0x69 0x0 0x1
17:58:35 DEBUG socket_framer:171 Processing: 0x3 0x72 0x0 0x0 0x0 0x6 0x1 0x4 0x2 0x69 0x0 0x1
17:58:35 DEBUG factory:220 Factory Request[ReadInputRegistersRequest': 4]
17:58:35 DEBUG context:66 validate: fc-[4] address-618: count-1
17:58:35 DEBUG context:80 getValues: fc-[4] address-618: count-1
17:58:35 DEBUG async_io:298 send: [ReadInputRegistersResponse (1)]- b'03720000000501040203b6'
17:58:35 DEBUG async_io:222 Handling data: 0x3 0x73 0x0 0x0 0x0 0x6 0x1 0x4 0x6 0xb1 0x0 0x1
17:58:35 DEBUG socket_framer:171 Processing: 0x3 0x73 0x0 0x0 0x0 0x6 0x1 0x4 0x6 0xb1 0x0 0x1
17:58:35 DEBUG factory:220 Factory Request[ReadInputRegistersRequest': 4]
17:58:35 DEBUG context:66 validate: fc-[4] address-1714: count-1
17:58:35 DEBUG context:80 getValues: fc-[4] address-1714: count-1
我的代码：modbus_read_input_registers 发出是 0 1713 617 ，-1地址返回错误；

[Hsn200047]

[Hsn200047]

版本为：

[Turingrun]

目测你这个是Debian 10。Debian 10的仓库里的libmodbus版本很老，直接下载最新的3.11的源码构建即可。我的Debian 10就是通过编译最新版本解决的。