from the Chemical Processing Plant department...Electronic Valve ON/OFF Problem
The pulse generated from the DO card of DCS is not a perfect square wave.
from the Forum department...Crc errors using jamod with Rxtx library
crc errors using modbus application with Rxtx library
By walgrind on 21 December, 2011 - 6:18 pm -
I poll usually two consecutive registers. But when I try to poll more, an issue also occurs. ...
By Ben on 20 December, 2011 - 6:32 pm -
I am experiencing the same issue using Jamod and the older javax.comm serial api. I have found...
from the Automation List department...Altivar 31 RJ45 to RS485 pinout
Anyone have the pinout from Telemecanique's Altivar 31 RJ45 to RS485?
By Manuel on 18 December, 2011 - 7:12 am -
I need the pinout for the RJ45 connector to the Altivar 28. Can someone help?...
from the Forum department...RSLogix access PLC via internet
Is it possible to access a PLC from RSLogix 5000 installed anywhere?
By Computrol on 17 December, 2011 - 7:59 am -
What particular hardware and software did you use? We are trying to do the same thing using Sixnet,...
from the fiber optic department...fiber optic signal
fiber optic signal attenuation
By Dick Caro on 16 December, 2011 - 6:38 pm -
First, the fiber optic cable must carry a digital network. There are many long distance solutions...
from the Forum department...Modbus Addressing Reference for PM800
Looking for Modbus addressing reference for Schneider-Electric power meter PM800.
The link has given previously is not updated. I hope that one will be fine: ...
By william on 15 December, 2011 - 10:04 pm -
>> http://ecatalog.squared.com/techlib/docdetail.cfm?oid=090089268022aab6 > I can't...
from the Obsolescence department...Interbus
Advice on Interbus obsolescence needed
from the Automation department...Modbus Communication cause 24VDC power Float by 6Vdc
the power supply is floating by 6VDC on the compressor panel due to a serial link comm on between the PLC AB Flex IO prososf module and the VFD motor drive motor.
A two way isolator isolates the lines from each other. A 3 way isolator isolates the lines and the...
Yes it is 2 wire modbus communication, the ground is connected, and the ground of the 2 systems is...
This doesn't sound like a Modbus communication configuration issue. But it isn't clear what...
from the PROTOCOL CONVERTER department...BSAP TO MODBUS
protocol BSAP / Modbus / DNP3 converter
By Fred Loveless on 12 December, 2011 - 12:07 pm -
Although we were not able to test any protocol gateways during development you should be able to...
from the HELP ME GET RID OF THIS PROBLEM CUSTOMER department...MODBUS CONTROLL OF MULTIPLE SLIT SYSTEM AIRCONDITIONERS
split system air conditioners in mining camps for control of power usage from control central
from the Testing the communication department...Testing with MODSCAN a communication between EGX100 and slave
I need help to use the MODSCAN to test the communication between a ECMB (Energy meter communication board) that permits communicate through Modbus RTU, and the gateway EGX100 (of Powerlogic)that permits communicate between Modbus and Ethernet.
By Andrzej on 10 December, 2011 - 5:05 pm -
Hello, You can use the modbus scanner from www.modbus.pl to check if your configuration for the...
I use both Modscan32 and Simply Modbus. Either is entirely functional and suitable for...
> I too have had trouble getting MODSCAN to communicate. I had much better > results with...
By Tim on 9 December, 2011 - 12:27 pm -
I too have had trouble getting MODSCAN to communicate. I had much better results with Simply...
from the Forum department...Connecting devices using HART protocol
Is Optiflex 1300C TDR (Krohne) compatible with TS550 console (Franklin Fueling System)?
from the Instrument department...Autrol Transmitter in HART
Problem of .dll file of Autrol Transmitter in HART.
By Mike Fersky on 8 December, 2011 - 3:40 pm -
ProComSol makes DevCom2000 - a HART communication product that runs on a PC. DevCom2000 uses and...
By Dick Caro on 6 December, 2011 - 6:12 am -
The problem you have observed is due to the fact that Autrol is using the HART protocol without...
1) Device-Specific files for HART instruments are called DD's, "Device Descriptor"...
By Walt Boyes on 5 December, 2011 - 10:01 am -
You appear to have misunderstood what the folks at SMAR told you. You need to get the DD file from...
from the engineering department...WITS (Wellsite Information Transfer Specification)
!!!HELP!!!WITS protocol = Wellsite Information Transfer Specification
By Steve on 8 December, 2011 - 2:17 pm -
Hello Milton, I realize its been almost a year, but I am curious if you found a solution for...
from the Forum department...Read Weight from Mettler Toledo Scale via RS232
reading a weight from a Mettler Toledo Scale via RS232
By Yuri Greene on 7 December, 2011 - 4:18 pm -
> This will read the weight on the mettler scale on the serial port. Put > this Function in...
By Yuri Greene on 6 December, 2011 - 5:01 pm -
> Did anyone solve this, if you have can you email me the code too pls,...
from the Forum department...function code 23 with TSXETG100
Unity Premium + ETG100 for function code 23
By Lynn August Linse on 5 December, 2011 - 10:33 am -
Having written firmware for many Modbus/TCP to serial gateways (including the ETG's predecessor),...
By Russ on 3 December, 2011 - 7:37 am -
I do not see why this setup would not work. I currently use the EGX100 which is Schneider's...
from the Instrument department...HART communication with ABB Transmitter
Problems faced in HART communication with ABB transmitter.
from the Computer department...Modbus4j java libraries
not able to retrieve the device properties like device name, device MAC Address, VendorId etc using jamod.jar and modbus4j.jar
from the INSTRUMENTATION department...HART COMMUNICATOR
HART communicator can communicate to Negative to GROUND?
1) >Those that can communicate are all on different power supply. A power supply acts as a...
By rr on 1 December, 2011 - 9:46 pm -
Hi David, Thanks for your interest shown. > 2. Positive to Ground > 3. Negative to...
from the Software interface department...Johnson Controls DX-9100
Need computer interface to monitor DX-9100
By walter dyk on 3 December, 2011 - 11:01 pm -
> Does anyone know of an open source computer interface that can be used to monitor a JCI...
from the Forum department...Connecting Yaskawa V1000 to S7 with Profibus
S7 with Yaskawa V1000 inverter on Profibus
By Manfred Anderl on 2 December, 2011 - 1:57 am -
Hello Nicolas, for rebuild of Yaskawa V1000 from Standard I/O to Profibus I would be interested...
from the Forum department...1 Analog + 1 Digital Networked Data Acquisition
Need advice on a system to collect data from an 1 analog + 1 digital input, and get that information into a networked database.
Thank you all for your suggestions. You brought up some very interesting ideas and I am exploring...
from the Forum department...Modbus and meters
Is Modbus protocol same for every electronic meter?
I've looked around and found http://www.modbusdriver.com/ I also found a very simple modbus driver...
Hi Kshitiz, There are many electric meters that feature modbus capability that you can read via...
Here is an example of modbus mapping in a power meter:...
from the Spec sheet for Badger tells me nothing! department...Interface advice for connecting Arduino to Badger ADE Water Meter
I'm looking for help with interfacing an Arduino with a Badger ADE water meter
By scadametrics on 1 December, 2011 - 10:34 am -
Hi Jason, You will need a bridge device to be able to read the the Badger ADE water meter...
from the n00b needs to learn remote controlling department...Adding a Web Interface
I have never programmed a PLC before, but I suspect I need to learn for this project: remote heater control.
By automationtechie on 30 November, 2011 - 8:15 pm -
Hi Larry, If you need simple on off control with temperature viewing and no logic, you can use...
By Peg Ferraro on 30 November, 2011 - 5:24 pm -
Hi, I'm going to step out of my usual role here and recommend the controllers made by my former...
By LunaICP on 30 November, 2011 - 3:16 pm -
Hi Matt, WISE-5800 which has website interface feature may help you to get the web interface...
from the Forum department...Connecting ETG1000 and TWIDO TWDLCEA40 through Modbus
Modbus communication between ETG1000 and TWIDO TWDLCEA40DRF
HOW YOU CAN TELL THAT IT'S GOING TO BE A ROTTEN DAY:
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