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Control.com topic...
Communications
Topic: Communications systems and equipment.
from the Automation List department...
Carter Wind Turbine Controller Interface - Modbus?
Posted by Darran on 8 August, 2008 - 8:09 pm
Is there anyone out there that might know anything about the Active Control Inc. serial comms protocol used by Carter wind turbines?
Topic: Communications systems and equipment.
from the Automation List department...
Modbus Mini-din
Posted by Julie on 8 August, 2008 - 7:40 pm
Modbus Mini-din
Topic: Communications systems and equipment.
from the Automation List department...
MODBUS Bit Order
Posted by Dan Marr on 6 August, 2008 - 12:56 am
Modbus Bit order: LSB to MSB (Left to Right Reading), or MSB to LSB (Right to Left Reading)?
Topic: Communications systems and equipment.
from the Automation List department...
Modbus addressing models
Posted by Fred Wedemeier on 26 July, 2008 - 1:53 am
Usage of most-significant decimal address to identify a data type.
Topic: Communications systems and equipment.
from the Visual Basic ActiveX department...
Visual Basic App Interface to Ethernet/IP remote I/O
Posted by Mark Gustafson on 26 July, 2008 - 1:35 am
Looking for an ActiveX OCX to interface with Ethernet/IP remote I/O
Topic: Communications systems and equipment.
from the engineer department...
Modbus RTPS
Posted by Joe on 23 July, 2008 - 11:04 pm
Is anyone using Modbus RTPS protocol?
Topic: Communications systems and equipment.
from the SBK department...
Magelis via Modbus with Twido
Posted by Lapic on 17 July, 2008 - 1:47 am
Communications
Topic: Communications systems and equipment.
from the Automation List department...
XBT GT4330 problem communications
Posted by Lapic on 15 July, 2008 - 12:13 am
Problem with communications between Twido PLC and Magelis (XBT GT 4330).
Topic: Communications systems and equipment.
from the Help department...
modbus with DCS-CS30000 or foxboro
Posted by PC on 13 July, 2008 - 10:06 pm
scanning of bits for modbus with DCS-CS30000 or foxboro
Topic: Communications systems and equipment.
from the Engineering department...
Error codes in Modbus
Posted by Miguel Allende on 9 July, 2008 - 11:35 pm
I am trying to communicate one PLC with a Modbus slave via Modbus RS-485, but I receive the error code number 9.
Topic: Communications systems and equipment.
from the Automation List department...
RS 485 Modbus communication
Posted by Neeraj on 9 July, 2008 - 12:47 am
How can device dependent operation (reading, writing) be performed on RS485 Modbus network?
Topic: Communications systems and equipment.
from the Automation department...
RS485/Modbus communication problem
Posted by Mohamad Hosny on 6 July, 2008 - 3:40 pm
Getting a problem to establish a communication between PC by using a RS232/RS485 PC-Adapter and an EROLECTRONIC PKP controller.
Topic: Communications systems and equipment.
from the Automation List department...
RTU modbus mode
Posted by TAT on 1 July, 2008 - 1:33 am
In most applications I see that in RTU mode, although parity is set to be NONE, stop bit is still set to be ONE. Why is that? Is stop bit supposed to be TWO because parity is NONE?
Topic: Communications systems and equipment.
from the Automation List department...
Using Modbus with PIC16f877A
Posted by itsme on 23 June, 2008 - 10:25 pm
I want to use Modbus protocol with PIC16f877A...
Topic: Communications systems and equipment.
from the Automation List department...
Number of MODBUS Slaves over TCP
Posted by AHK on 18 June, 2008 - 7:58 pm
Number of MODBUS Slaves over TCP
Topic: Communications systems and equipment.
from the Modbus/Rs232-485 conveter department...
Using Jamod library,but problem in connecting slave device
Posted by Kavya on 18 June, 2008 - 6:54 pm
Not able to establish connection with the modbus slave device using RS232 Communication.
Topic: Communications systems and equipment.
from the Modbus department...
Modbus slave interaction
Posted by Arvind on 14 June, 2008 - 4:08 pm
Need Help to know how to get responce from Modbus slave.
Topic: Communications systems and equipment.
from the R&D department...
Modbus Communication and Time Stamp
Posted by Ravi on 13 June, 2008 - 6:59 pm
Getting the status information of a device(example a relay) along with the time stamp on modbus protocol.
Topic: Communications systems and equipment.
from the A&D department...
MODBUS communication
Posted by garincha on 11 June, 2008 - 1:47 am
Problems with reading holding registers in MODBUS
Topic: Communications systems and equipment.
from the Automation List department...
174 CEV 300 10
Posted by Jaka Dolenec on 10 June, 2008 - 3:00 am
Connecting Twido PLC and RS485 devices over 174 CEV 300 10 bridge.
Topic: Communications systems and equipment.
from the Development department...
Modbus TCP/IP functionality
Posted by Dave Adams on 4 June, 2008 - 12:25 am
TCP/IP functionality required for Modbus TCP/IP
Topic: Communications systems and equipment.
from the Automation List department...
Modbus RTU 1.5t interval
Posted by Yury Kurilo on 4 June, 2008 - 12:01 am
What is the purpose of Modbus RTU 1.5t interval?
Topic: Communications systems and equipment.
from the Automation List department...
Honeywell DC1000 comm with WinCC
Posted by need your help on 3 June, 2008 - 1:03 am
Honeywell DC1000 comm with WinCC
Topic: Communications systems and equipment.
from the Automation List department...
Modbus Requests and Java
Posted by gishac on 26 May, 2008 - 12:36 pm
I'm trying to do a request to a modbus device, but I don't know how to build the request buffer to send.
Topic: Communications systems and equipment.
from the Automation List department...
RS232 to Adressable modbus
Posted by Kirk on 25 May, 2008 - 5:57 pm
Inexpensive serial to modbus converter
Topic: Communications systems and equipment.
from the Boiler Control department...
Fulton Boilers with Modsync control
Posted by ajay on 24 May, 2008 - 10:39 am
Need information regarding Modsync Sequencinc contorller for Fulton Boilers
Topic: Communications systems and equipment.
from the Automation List department...
Omni Modbus Interface
Posted by Biju Mavila on 22 May, 2008 - 1:59 am
Omni Flow computer to Modicon PLC communication
Topic: Communications systems and equipment.
from the Automation List department...
FIFO Queue/History Information
Posted by SEH on 22 May, 2008 - 1:22 am
What is the aim of this FIFO queue, as it is limited to 32 consecutive entries?
Posted by Neeraj on 17 May, 2008 - 12:24 pm
possible to use Multiple modbus registers for ASCII value and its configure on modbus master?
Topic: Communications systems and equipment.
from the firmware design department...
Comm Event Log in Listen Only Mode
Posted by Stefano on 16 May, 2008 - 9:13 pm
If the server/slave is in Listen Only Mode, all the messages on the network are "monitored", but the only function "processed" is the "Restart Communications Option". What is the content of the Communication Event Log during this modality?
Topic: Communications systems and equipment.
from the Home and Building department...
Modbus RS485 Sniffer
Posted by Priya on 16 May, 2008 - 2:34 am
Modbus RS485 Sniffer
Posted by Sanjib Roy on 13 May, 2008 - 10:15 pm
Need a communication between Micrologix 1100 (Allan-Bradley) and SPPA-T1000 (Siemens) on Modbus.
Topic: Communications systems and equipment.
from the Automation List department...
Data Type Configuration in Modbus Master
Posted by Neeraj on 13 May, 2008 - 12:59 am
How to configure ASCII Data type in Modbus Master?
Topic: Communications systems and equipment.
from the Automation List department...
modbus master IC?
Posted by rik on 11 May, 2008 - 7:54 pm
So I would like a chip/embedded code to create a modbus master, from which I can just collect the data from a modbus slave...
Topic: Communications systems and equipment.
from the humorous department...
Modbus/TCP Conformance Test policy 2.1
Posted by sachin mehta on 9 May, 2008 - 10:18 pm
According to 'Modbus/TCP conformance test policy 2.1' it's mentioned that 'conformance test software' will read the "HARD-CODED" line from the test2.1.tst file and pre-defined test cases will be executed. Can we put user defined test cases instead on HARD-CODED line?
Topic: Communications systems and equipment.
from the Facilities department...
Communication Problems with Modbus RTU
Posted by Will on 9 May, 2008 - 12:47 am
We have problems with random alarms being sent from our UPS system to the Building Automation System.
Topic: Communications systems and equipment.
from the Ack! Please Help department...
Modbus control of Hitachi VFDs
Posted by Zorlack on 8 May, 2008 - 1:09 am
I need some help interfacing with a Hitachi L100
Topic: Communications systems and equipment.
from the control system department...
Modbus communication with Simatic S5 CP521
Posted by Nishad on 6 May, 2008 - 6:16 pm
Modbus communication with Simiens Simatic S5 100u CPU103, CP521 with ABB AC800M controller.
Topic: Communications systems and equipment.
from the khk department...
Moxa and Adam
Posted by rashedi on 3 May, 2008 - 3:30 am
How I can connect data gathering module to Citect via ethernet?
Topic: Communications systems and equipment.
from the Home and Building department...
Modbus Transaction State Diagram
Posted by Priya on 29 April, 2008 - 10:28 pm
Processing of Modbus Transaction in the Server Side
Topic: Communications systems and equipment.
from the Automation List department...
Replacing Applicom hardware with software
Posted by adnan on 29 April, 2008 - 12:55 am
How can I replace the Applicom hardware with software?
Topic: Communications systems and equipment.
from the Automation department...
MicroLogix on DH485 but I want it on RS485
Posted by kamal on 25 April, 2008 - 11:39 pm
I am using 2 MicroLogix PLCs on DH 485 network.
I want to get the data on SCADA but it does not have that driver. I want it on RS485. Is it possible?
Posted by Mr. Amit Joshi on 25 April, 2008 - 11:35 pm
Queries related to inter frame delay & inter chara delay in Modbus RTU
Topic: Communications systems and equipment.
from the Automation List department...
Touch Panel connection to Modbus Master
Posted by M Lane on 23 April, 2008 - 11:04 pm
My Modbus master doesn't accept unsolicited writes. How can I connect it with a touch panel?
Topic: Communications systems and equipment.
from the Bits, Numerics and Floaters department...
FMC MicroLoad to Honeywell 3000 Modbus RS-485 Link
Posted by Roman on 18 April, 2008 - 2:13 am
Does anyone have Honeywell TDC3000 connected to FMC MicroLoad controller using Modbus RS-485 serial link and able to read numerics and floating point data from it?
Topic: Communications systems and equipment.
from the Automation List department...
Communication of UDC3000 controller with Experion
Posted by Sachin on 5 April, 2008 - 1:27 am
I have connected the UDC3000 controller with Honeywell Experion SCADA via RS485. I don't have a deep idea about UDC3000 controller.
Topic: Communications systems and equipment.
from the Automation department...
Modbus Master Error
Posted by Ajith on 3 April, 2008 - 10:56 pm
Modbus master communication
Topic: Communications systems and equipment.
from the Modbus for Dummies department...
Modbus testing program
Posted by Thilgs on 3 April, 2008 - 12:49 am
Looking for a PC application to test PLC Modbus communications.
Topic: Communications systems and equipment.
from the Automation List department...
How to configure address both Unity (M340) Pro and iFIX
Posted by Anonymous on 3 April, 2008 - 12:06 am
Configure address both Unity (M340) Pro and iFIX
Topic: Communications systems and equipment.
from the Automation department...
Modbus Master Communication
Posted by Ajith on 3 April, 2008 - 12:00 am
Modbus Master Communication between 4 slaves.
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