Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Past & Future Posts
Sponsored Communities
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Cool stuff
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
A closed mouth gathers no foot.
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss
from the Protocol department...
Modbus on Microchip PIC16F877
Hi All,
I am using Microchip PIC16F877 as Modbus RTU and I have stored 0x55h value in the 0x20h address. I am tring to retrive the 0x55h value through the hyper-terminal using the Function Code 03. Kindly suggest me about the Modbus Data Mapping. Should I refer to 0x20h in the modbus request or should I use the Modbus Mapping
Thanks
Maran
I am using Microchip PIC16F877 as Modbus RTU and I have stored 0x55h value in the 0x20h address. I am tring to retrive the 0x55h value through the hyper-terminal using the Function Code 03. Kindly suggest me about the Modbus Data Mapping. Should I refer to 0x20h in the modbus request or should I use the Modbus Mapping
Thanks
Maran
Dear Sir
Can you please send me the modbus code for the pic16f877.
i need it urgently. my email is : mech962784@yahoo.com
Best Regards
Can you please send me the modbus code for the pic16f877.
i need it urgently. my email is : mech962784@yahoo.com
Best Regards
From Control Engineering magazine...
Related articles from Control Engineering magazine
- ODVA, DeviceNet: New CIP specs; ControlNet added; 2009 meeting
- Embedded, wireless devices, dynamic IP routing
- Listen in: Wireless developments for Air Force may influence industrial applications
- Easier implementation: Kits for cable testing, wireless products
- Inside look: How MTL Instruments fits with Cooper Industries
- Ethernet hardware: Switches and more
- Frost & Sullivan awards honors many automation, controls companies
- ABB update: User conference, exhibition, flow, SCADA, wireless
Above articles copyright 2008 Reed Business Information. Subject to its Terms of Use.
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2008 Control Technology Corporation. All rights reserved.
Users of this site are benefiting from open source technologies, including PHP, PostgreSQL and Apache. Be happy.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!