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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
Pity the meek, for they shall inherit the earth.
-- Don Marquis
-- Don Marquis
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Can MicroLogic PLC read Modbus Holding Registers in the 5xxxx range?
New Replies:
By M Griffin on 16 October, 2009 - 2:17 pm -
To make something clear about Modbus, this 0x, 1x, 3x, 4x, 4 digit, 5 digit stuff has *nothing* to...
The typical Modbus Address Scheme is :
0x = Digital Outputs (Bit)(Read / Write)
1x = Digital...
By Harvard on 15 October, 2009 - 11:31 am -
Try reading Register = 50102-40001 = 10101 = 0x2775...
By Patrick Lansdorf on 15 October, 2009 - 3:02 am -
Hi,
I cannot answer if a MicroLogic PLC can read 5xxxx registers. But if it cannot, I would...
What are the difference between PLC and motion controllers
New Replies:
Yes, the Power PMAC looks pretty slick. Glad to see they have plans for PowerLink EtherCat etc. ...
Does anyone know if it is possible to comm. between a SLC505 to a ControlLogix using ethernet?
New Replies:
Jerry:
Thanks for your kind words.
I hope this helps someone. I spent two days plus...
By Jerry Miille on 16 October, 2009 - 12:24 am -
Rodney Wirtz
A great couple of responses!
Your step-by-step is better than anything I have...
By Rodney Wirtz on 15 October, 2009 - 12:39 am -
How about Messaging from SLC505 to Controllogix.
This gets alittle more difficult (one more...
This is the way it is...
Read/Write from Controllogix to SLC505 using Ethernet:
Message Block...
need help ASAP
Unrecoverable major fault : code 60 in control logix L61 Processor
New Replies:
By curt wuollet on 15 October, 2009 - 11:55 pm -
Try searching for Atmel.
Regards,
cww...
By Vijay Bharadva on 15 October, 2009 - 1:18 am -
Hi Dave,
I already checked all of these and changed the processor also. still it is happening....
By David Ferguson on 14 October, 2009 - 10:53 am -
I have had a similar problem, there is a service bulletin on their website concerning ADMUL (I...
How to implement the linearization algorithm in order to support proper flow metering?
New Replies:
What is the flowmeter?
What accuracy is required? ...
Looking for some music player
New Replies:
This one brings back memories. Had just completed the control system on a large water treatment...
New MKVI Installation
Is it possible to use any RS232 to TCP converter or should I use a specific converter for Modbus?
New Replies:
By Harvard on 15 October, 2009 - 11:27 am -
I use a B&B ESP901 Single Port RS-232/422/485, as an example, and it can be used with any...
By Fred Loveless on 15 October, 2009 - 10:04 am -
Modbus over TCP is what you get when you use a straing serial to ethernet converter. This is...
Want to connect a PLC to a existing Ethernet network..
New Replies:
- First, you have to see the processor from RSLinx. If you do, you should have no problems.
-...
By Gerald Beaudoin on 14 October, 2009 - 1:04 pm -
First...make sure you cables are OK...we always get caught on the details. If you are using the ETH...
By Mick on 14 October, 2009 - 5:53 am -
Thank you for responding.
I have a green Ethernet LED on the PLC
I have have swapped the...
By bob peterson on 13 October, 2009 - 5:18 pm -
When the PLC is connected to the network do you get the right LED response on the PLC and the...
How to read weight from IND 780 using Modbus TCP/IP
New Replies:
I do not have PL7 installed on my computer and am going from memory.
You do not enter 400001...
By Chimwana on 14 October, 2009 - 9:13 am -
Hi
I'm using PL7 Pro when I'm setting my IOscanning I can not input 400001 address as my slave...
It would help if you provide us with the details of which programming software you are using (PL7...
from the Forum department...
AB Micrologix 1100 Modbus Communication with Telemecanique Motor Startertrying to communicate an AB ML1100 with a Telemecanique motor starter unit with a modbus communication module
New Replies:
...figured it out. Two problems were found:
1) Incorrect wiring. I was using a CAT5 cable, RJ45...
I've read the entire manual for the LULC031(the modbus module in the TeSysU starter) and i'm trying...
How to control timer in wago PLC from mytek
Push Button Faceplate implementation in Centum CS3000
Customer has an old (30+yr) system with Cutler Hammer D800 Message Displays and needs software.
Configuring Messages
Timeout State of DDO modules
Can anybody told me how to tune Baldor Linear motor .
Need a PLC that runs on 12 volts and supports IEC 1131-3 Structured Text.
New Replies:
By curt wuollet on 12 October, 2009 - 11:50 am -
Reminds me of FORTH!
There is also an obfuscated C program contest that produces some...
By M Griffin on 11 October, 2009 - 10:46 pm -
In reply to curt wuollet: I would guess that the majority of people who understand PLCs have never...
By curt wuollet on 11 October, 2009 - 9:52 pm -
The only problem I have with ST is that no one but a programmer will even attempt to troubleshoot...
Beckhoff has a large range of controllers that use their Twincat IEC 6-1131 software, allow you to...
Need the manual to deal with ABB AC400 advant controller via on line builder software
I'm researching this field of work and have a few questions.
New Replies:
By curt wuollet on 12 October, 2009 - 12:43 am -
From what I've seen both aspects are unpredictable. I've been looking for a new roost and the wages...
By William Sturm on 11 October, 2009 - 10:51 pm -
Traits that are important for a PLC programmer, in my humble opinion:
1. Ability to think...
I've been an AB programmer for many years and now I have a S7 job to work on...
New Replies:
By petkos on 10 October, 2009 - 1:03 pm -
Normally you would program messaging / reactions or triggers depending on kind of fault detected....
ISA-RP55.1, Hardware Testing of Digital Process Computers.
how to use wincc v5.0 with windows XP.
New Replies:
By M Griffin on 9 October, 2009 - 2:02 pm -
Before too long you're going to be in the same boat with MS Windows XP that you are now with MS...
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