Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Neat Stuff
Visit our shop for nerds in control lifestyle products.
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
"Why was I born with such contemporaries?"
-- Oscar Wilde
-- Oscar Wilde
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/
To get a personalized feed, become a member at no cost.
from the Automation List department...
Clearing the history log
Is there a command you can send to clear the history log in Enron modbus devices?
To request Enron History, function code 03 is used.
Request register # 701 (02BD hex) for the first history table
Request register # 702 (02BE hex) for the second table, etc.
Each record in a table is given an incrementing index number.
But can you also send a command to clear the history?
To request Enron History, function code 03 is used.
Request register # 701 (02BD hex) for the first history table
Request register # 702 (02BE hex) for the second table, etc.
Each record in a table is given an incrementing index number.
But can you also send a command to clear the history?
From Control Engineering magazine...
Related articles from Control
Engineering magazine
- Embedded control: USB module speeds FPGA-based control development
- Controller, software evolution eases integration, helps operations, says ABB
- Post-Katrina: Rugged fiber-optic network is set to report through hurricanes
- Networks: EtherCAT industrial Ethernet protocol for motion control, Power over Ethernet
- Emerson introduces new software platform for its flow computer family
- Multivariate analysis engine for embedding, integration
- GE Fanuc expands its 8000 Process I/O line
- Alternative-fuel power plants require versatile process control platforms
- Siemens announces motors, drives, and motion control advances
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.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!