modbus

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Access restrictions in Modbus protocol data model

What is exactly the difference between registers in the Modbus protocol data model? The protocol defines the following data model:[详细]

2023-03-16 06:57 分类：问答
How to access 5xxxx Modbus address

I am trying to access addresses such as 50526 on a Socomec Diris A40 using nmodbus. Unlike other examples I have seen which start with 3 or 4, these addresses all start with a 5. 50544, 50550, 50556 a[详细]

2023-03-08 17:58 分类：问答
Something like StrTok() or Sscanf()?

So, I am reading from开发者_开发百科 ModBos over serial port and get readings something like the following : \'+0020.8+0022.8-00.046-00.002-00.005-001.99+00.000+00.003\';[详细]

2023-02-09 23:25 分类：问答
Can my program use Indy 10 at a customer site if I wrote it to use Indy 9?

I have written a program in Delphi 7 (includes a ModBus component that uses Indy). On my machine it uses Indy 9 and works fine. It communicates well with other machines via a ModBus protocol. However,[详细]

2023-02-07 21:24 分类：问答
Need modbus Java library [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-02-04 20:51 分类：问答
Modbus sniffer tool required

I am looking 开发者_开发百科for a good professional modbus sniffer tool to scan the master slave communication. Please any one have idea ?[详细]

2023-01-12 21:04 分类：问答
Modbus driver: C vs Java

I am soon going to start a project where I\'m required to program a Modbus driver. My initial approach was to want to do it in Java, however my boss has had contact with a company that has experience[详细]

2023-01-03 21:48 分类：问答
Modbus stack for Microchip PIC

Can someone suggest an open source implementation of a Mo开发者_StackOverflow中文版dbus RTU Slave for a Microchip PIC18 processor? I\'m looking for an implementation of Modbus RTU for RS-232/RS-485, b[详细]

2022-12-17 21:01 分类：问答
Serial programming: measuring time between characters

I am sending/receiving data over a serial line in Linux and I would like to find the delay between characters.[详细]

2022-12-11 07:01 分类：问答
How to Reduce TCP delays caused by ARP flushes for MODBUS TCP

We have an application which is periodically sending TCP messages at a defined rate(Using MODBUS TCP). If a message is not received within a set period an alarm is raised. However every once in a whil[详细]

2022-12-10 00:34 分类：问答