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Control.com member...
Member Information and Posts by jcorrea
from the Instrumentation & control department...
communication protocol
Topic: Local and wide area networking in factory automation.
Originally posted by Saraswathy on 2 November, 2009 - 7:40 am
We are having 10 third party PLC systems to be connected to DCS. We wanted to use ModBus TCP/IP protocol. For this, OPC server facility is required or the PLCs will act as ModBus TCP/IP Server. Please clarify
New Replies:
If your PLCs have Modbus TCP server cards you don't need a OPC server. If your PLCs don't...
Topic: Communications systems and equipment.
Originally posted by Prasanthi on 20 July, 2009 - 11:12 pm
Protocol Converter from MODBUS RTU to proprietary protocol(HAI Omni-Link II protocol) on TCPIP
New Replies:
Solutions from the simpler to the harder: 1.- Consult HAI if they have modbus rtu option cards. ...
Topic: Communications systems and equipment.
Originally posted by Walt Flannigan on 15 June, 2009 - 3:09 pm
Looking for a module to sit in a PLC panel that will respond to commands from a walkie-talkie
New Replies:
A little googling pointed me to the following: http://www.icircuits.com/store/prod_dtmf_main.html....
from the Forum department...
OPC client for Unix/Linux.
Topic: Communications systems and equipment.
Originally posted by Torre on 29 May, 2009 - 5:22 am
Honeywell Experion -> Itanium HP-UX data communications bridge.
New Replies:
Solutions converge to the following: Use your custom C sockets programs in the HP-UX end to...
Does your HP-UX based MES support OPC communications?. What other alternatives different from...
from the Networking department...
Modbus RTU Passive Taps
Topic: Local and wide area networking in factory automation.
Originally posted by Shawn H on 29 May, 2009 - 11:55 am
How long can the taps on a modbus network be and are you limited to the amount of taps for 32 devices?
New Replies:
If baud rate is below 19200 and bus lenght below 100 meters, there will be no problem with your...
from the Forum department...
Back emf
Topic: Power generation equipment control.
Originally posted by michael beagan on 28 May, 2009 - 3:59 am
why such a big cable for a surge protection device
New Replies:
High energy transients can be modeled as high frequency electromagnetic phenomena. At high...
from the Automation List department...
Modbus Communications with GE-Fanuc 90-30
Topic: PLCs and related questions.
Originally posted by erkin girgin on 3 October, 2008 - 7:11 am
I want to establish communication via RF between the PLCs.
New Replies:
Hi First aff all you need one Modbus-Master card like Horner's RTM705 and then 3 GE Fanuc CMM311...
from the Communications Modem DF1 department...
DF1 modem needed for OEM radio
Topic: Communications systems and equipment.
Originally posted by Daron Wilson on 24 February, 2009 - 2:40 pm
Looking for 1200 baud modem for my own radios, needs proven support for Rockwell DF1 protocol
New Replies:
Take a look to www.kantronics.com. I have worked some time ago sending GPS data via UHF radios...
1
 
 
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