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Can the 'X7' port (Port for connecting control panel or PC) in ABB-ACS850 VFD be used for interfacing with PLC through 'MODBUS TCP/IP' protocol...?
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By Gowri on 3 December, 2012 - 12:57 am -
Thanks Steve...,
I've doubted this, based on the RJ45 connector provided in the VFD. But, the...
By Steve Myres on 1 December, 2012 - 11:09 am -
> Can the 'X7' port (Port for connecting control panel or PC) in ABB-ACS850 VFD
> be used...
Problem with Concept software while running in virtual machine. a General Protection Fault (RDM330.dll) appeared everytime running a Concept Converter for file in a host directory.
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By Robert Willis on 2 December, 2012 - 11:25 pm -
The latest verison of Concept Verison 2.6 SR7 has been certified to work with Microsoft Windows...
use procmon.exe (free from sysinternals) to trace execution . Also use procexp.exe to search which...
Segregation between input and output control signals
from the Automation List department...
Volt-free contact, dry contact, wet contact, proximity contact!!??Can someone help me to explain the meaning of volt-free contact, dry contact, wet contact and proximity contact?
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By Gordon John Hinds on 30 November, 2012 - 11:53 pm -
Capacitive proximity switches have not been mentioned. they are true proximity switches which...
I want control rtu in modbus protocol via gprs internet
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By automationtechie on 30 November, 2012 - 8:04 pm -
You can use our GT-541 to create a virtual com port connection to your Modbus RTU slaves through...
best practice to secure modbus TCP
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By automationtechie on 30 November, 2012 - 7:44 pm -
You can use a managed switch like our MSM-508. This will allow you to restrict access based on IP...
For measuring hydraulic pressure of a high pressure pump, what do i need to measure: absolute or gauge pressure?
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By MarktheSecond on 30 November, 2012 - 4:14 am -
Gauge pressure...
By jeffa on 29 November, 2012 - 1:37 pm -
Depends on what you call high pressure.
most commercial equipment (excavators, cranes, winches...
Is the first contact on Amot Hawk PLC a special input?
Upgrade of existing AB PLC 5/40
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By Bob Peterson on 29 November, 2012 - 9:31 am -
My first question is why does it need to be upgraded? This is an obsolete hot standby system on an...
ComSoft DF Profi ISA Card Needed
When I poll a range of Modbus registers, I got bad response if I poll one more register than the range, even though ALL the registers are valid.
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By Lynn August Linse on 28 November, 2012 - 9:58 am -
So it is the Digi making that code - the '80 0B' looks like a bug. I haven't actually looked at...
By Weimin on 27 November, 2012 - 11:59 pm -
I dumped out the port setting parameters, and yes, slavetimeout = 1000. As soon as I changed that...
By Weimin Chen on 27 November, 2012 - 6:54 pm -
Thanks a lot for your good info! Now I got some idea about the problem: it must be the Slave...
By Lynn August Linse on 27 November, 2012 - 8:43 am -
It is easy to see where the strange response is from - check out this web page, which shows how to...
Need to read/write registers on various Mitsubishi PLCs for a linux web application.
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By Ken E on 26 November, 2012 - 10:02 am -
The Q series Ethernet modules support their own proprietary network protocol (I think it's the MC...
Sources of the Suconet Implementation Kit.
Is there a way I can direct my vendors to a more standard, widely accepted programming style?
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By Sangmin Lee on 26 November, 2012 - 4:47 am -
All,
> It has occurred to me that maybe a generic PLC code standard would be something that...
Where can I get the software Fuplan for Sauter EY 2400?
Problems establishing communication between AB micrologix 1400 and RSlogix 500 to SMC EX260 or EX600 with Ethernet\IP module.
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Hi there,
I was just reading a thread on PLCtalk and thought you might want to read it.... As...
Clearing Password in GE Fanuc DURES controller.
Installing a Yokogawa Centum VP DCS to control DeltaV
Analyzers analog output signal 4-20mA transmission
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According the E&H manual, the 10W flowmeter has an active (powered) 4-20 mA output that can...
Hi David ,
It was really informative . Could you please help me in a different scenario.
I...
Question about controlling a variable speed fan motor with PLC
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> You may need to add a signal isolator unless the speed pot is referenced to ground.
aren't...
Modbus connection with ABB ANR96 and ABB DMTME.
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By Mudi on 20 November, 2012 - 5:18 am -
Hi,
you are getting correct values... 1000h = 4096 dec so when you read value of 1000h its...
4 20 mA signal dropping
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My watch doesn't work. What could be the problem?
How would you answer that question? Probably...
Control engineering career question
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Wow, I didn't know PLCs were used in that area. When you say test, is it run through a set of...
By Ed Wilson on 17 November, 2012 - 12:51 am -
I do PLC programming for large show performances (I used to do amusement park ride control). We...
Importing variables into a Unity Pro project
Bus systems relationships and measuring 4-20ma.
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By Jonas Berge on 17 November, 2012 - 12:49 am -
There are some differences in the communication protocol capabilities, and therefore
-...
How often does this occur and what is the typical handling?
Why is this alarm clearing itself?
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By Todd Hinzman on 16 November, 2012 - 12:21 pm -
We have found the pulse it sends to the PLC is not correct. sporadic. we are checking connections...
I am attempting to monitor the measured values of an FCI ST98 FlexMASSter Mass Flow Meter with an IM151-8 PN/DP CPU with a 6ES7138-4HA00-0AB0 DP MASTER INTERFACE.
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The GSD file supplied by FCI wasn't the only problem. The Profibus module in the meter had an...
PLC communicates with older Cisco 2950 but not the 2960.
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> i have this problem to, on 2960, the port to the PLC i changing between green
> and amber,...
By Mattias on 15 November, 2012 - 1:00 pm -
i have this problem to, on 2960, the port to the PLC i changing between green and amber, disable...
GE MARK V Manuals
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By suhail on 16 November, 2012 - 6:58 am -
Dear bambang
can you share the links with me to will be grateful to you. suhail.rafiq@yahoo.com
...
How many MODBUS TCP can connect device
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Hello,
I agree with Lynn August Linse.
You can use traditional SAP/ERP data-logger kind of...
Multiple error messages being received.
Does anyone here have a sample program regarding communication of Siemens S7 and Micromaster 420 through Profibus module?
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By nngongpro27 on 13 November, 2012 - 9:45 pm -
hi
I did CW-->Word0--> %QW1.4 and SW-->Word--> %IW1.4 in DP-module I/O Mapping but...
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