MODBUS Siemens CPU ET200SP
Modbus communication error
Shortly,what I need: 1) Some manual/datasheet for Simatic OPC Scout 2.3 2) Some program example in C/C++/C# to create database from OPC (DB's in PLC)
Modbus Gateway Redundancy
Redundancy between Concentrator Modbus Gateway and DCS Yokogawa Centum VP
SG Intellisys Controller Interface to Siemens PLC
SG Intellisys controller part no: 39897095 manual for communication?
Looking for a copy of Microtel 700 specification
By Peter Andrews on 17 May, 2018 - 6:15 am
Hi, Were there any answers on this one, as we're now in the same situation, with the Transmitton /...
Looking for alternative OPC Server for Yokogawa Centum VP DCS
By Shibu on 13 May, 2018 - 5:00 pm
How do I connect from excel on a remote computer to Exaopc server running on another computer? I am...
Wireless connection of modes slave to industrial router and SCADA system.
By Oliver on 10 April, 2018 - 9:31 am
Hi, You can ideally use a standard industrial wi-fi router to connect you Modbus TCP device. The...
The difference between RS485 to IP converter and MODBUS RS485 to MODBUS TCP/IP gatway
By Fred Loveless on 1 May, 2018 - 9:54 am
Greetings, it is actually very straight forward. An RS485 to IP/Ethernet converter Encapsulates the...
By Chris on 30 April, 2018 - 9:33 pm
Take a look at the Anybus Communicator - Modbus TCP (AB7072). This Communicator is capable of...
PowerFlex 753 Configuration
Need to download project file to PowerFlex 753 CNET through RSLogix5K
By Bob Peterson on 17 April, 2018 - 11:11 am
It won't let you download a configuration file if the hardware does not match the configuration...
XM-220 Module via DeviceNet Config
Need to configure AB speed module XM-220 via DeviceNet
4-20mA to 10-24VDC Foundation Fieldbus Converter
Posted by Ideh Ebuehi on 23 April, 2018 - 8:41 am
Any recommendations for a 4-20mA to 10-24VDC Foundation Fieldbus converter for use with DVC6010f Positioner
ControlLogix TCP/IP Socket Communications Issue
I'm having trouble making Socket communications work between a ControlLogix PLC and a Win 7 PC for job change control.
NIST has released a draft for comments of a publication on Cyber Resiliency
Best method for this scenario
By Ashton on 12 April, 2018 - 10:17 pm
Ethernet cards are no longer available for the 90-30 series PLC. I plan on using the existing...
Denso Robot Modbus Implementation
Connection between PC and Denso Robot Controller via Modbus is making problems. How do you implement modbus protocol in Denso native language PAC script.
Modbus RTU Message in TCP Packet?
Possibility to wrap a Modbus RTU Message in a TCP packet.
By Lagan74 on 9 April, 2018 - 3:12 am
:) Actually, it not really me who has ruled out other options. It is rather the customer and the...
By Fred Loveless on 6 April, 2018 - 10:38 am
Hi, yes it is it is called Modbus over TCP not to be confused with Modbus TCP. This is...
By Bob Peterson on 6 April, 2018 - 9:49 am
There are several options available to you that might work. There are serial port converters...
Position Of RS485 Modbus Master
Placing a Modbus Master inbetween modbus slaves not at beginning or end of a network
Visual Basic Code for Serial Communication
Posted by HASBALLAH on 3 April, 2018 - 8:20 am
Want to transmit data from serial communication protocol to VB.6
Communication between Honeywell DCS and Modicon PLC
1794-IF4I Connection with 2 Wires Transmitter
Using 1794-IF4I to read and power up analyzer transmitter, but cannot get the analyzer to power up.
Make a network with Modbus slave
Does GE have any documentation on the SRTP Protocol?
By pierre on 21 March, 2018 - 9:38 am
I am very surprised that we can't find the a free driver, like Modbus TCP. You have perhaps an idea...
By Mark on 20 March, 2018 - 12:23 pm
Automated Solutions offers a GE SRTP Ethernet driver that supports RX3i, RX7i and RXi natively...
By Fred Loveless on 20 March, 2018 - 9:57 am
At this point you best option is probably going to be to find product that can communicate with...
By pierre on 20 March, 2018 - 8:41 am
I have asked to GE but the protocol isn't open. For Modbus TCP, I think that I must pay a new card....
Is your plant controlled by Russia? Are you sure?
The US Dept of Homeland Security just issued a report that there has been an ongoing, successful cyberattack on US utility plants from Russia.