Can We Change Function Code
Can we change function code for example 01 is for output coil status instead of 01 we can't assign 02 for output coil status maybe it's a ridiculous question but I have a little bit on that source code is only fixed or variable
Why does RS-232 continue to be the data comm standard for PLC's?
By llinse on 7 October, 2015 - 3:41 pm
As mentioned this is changing, but I think you are not thinking the problem through fully - there...
By Steve Myres on 6 October, 2015 - 12:23 pm
USB to some extent, and especially Ethernet, are becoming common on current generation PLC's. ...
how to communicate Triconex PLC with Honeywell Experion R400.
Posted by Saumitra Mandal on 10 May, 2012 - 7:37 am
How to establish this communication between Triconex and Honeywell Experion system after upgrade?
By njinodra on 6 October, 2015 - 2:15 am
Dear Sastryji We have Honewell Experion PKS system in our plant. we are unable to connect with...
OPC Connectivity of Package Vendors with ICSS
Connecting 3rd party package (Integrated Control and Safety System) to DCS
By datacontrol on 5 October, 2015 - 6:29 pm
I'll try address your first question. You will need an OPC Server per PLC- DCS vendor, if each...
Increase in the Value of Transmitter Range, How Much?
how much more can i extend my transmitters range values ?
By MrAnon on 3 October, 2015 - 6:37 pm
Look at the model number of the transmitter, and then look up the datasheet for that transmitter....
RS485 MODBUS Slow Response
Slow response with two RS485 connections. Two Siemens PLC to one Yokogawa DCS ALR121 card.
By ICP DAS on 29 September, 2015 - 5:27 pm
2 master connections are not allowed on a single RS-485 bus. You will get data collisions and what...
Multiple Project Connection Package- Yokogawa CENTUMVP
Connecting two projects of Yokogawa CENTUM VP via multiple project connection package.
How Common Is RS-485/422 4-wire?
In this year of 2015, how common are 4-wire RS-485/422?
By Roy Matson on 1 October, 2015 - 4:38 pm
>In this year of 2015, how common are 4-wire RS-485/422 devices? Like you I'm a bit rusty, I...
By Bob Peterson on 1 October, 2015 - 4:22 pm
don't see much of RS422 at all these days. can't say I have ever even seen a 4 wire RS485 device....
Adding a Variable Load Option
Posted by Isaac Adekanye on 1 October, 2015 - 3:39 pm
How to add a variable load and analog control to a circuit
How HART Signal of DAC Can Be Differentiated from Loop Current?
Differentiating a HART signal from loop current
By sruthi.92 on 29 September, 2015 - 1:09 am
I want to know if AD5700 interfaced with DAC161S997, Whether the HART FSK output signal from DAC...
Honeywell DCS- Connecting Multiple Clusters
Honeywell DCS - Experion or older TDC Connectivity across clusters.
MODBUS Digits Address Confirmation of Understanding
Asking for a confirmation about the understanding of MODBUS digits address
Yokogawa DP97 KB Port Protocol
What kind of communication protocol does DP97 KB port use?
Problem with Siemens Fieldbus positioners
Connection Failure with Fieldbus Siemens positioners
HMI P14 controller Upgrading to 800xA
Using a P14 proControl in 800xa system
Configurable D-sub Adapter
Looking for ideas on a field-reconfigurable DB-9 cable or adapter?
By Steve Myres on 24 September, 2015 - 1:11 pm
This is the one I like for that situation: http://www.winford.com/products/brksd9.php A mini...
LIB-MODBUS FOR ARM CORTEX-M3 Microcontroller
Want to port lib-Modbus for Linux for a microprocessor to the lib Modbus for cortex M3 microcontroller.
Using a GPS application for time synchronization but the application is not reading proper time.
Communication between Labview and Controller via Modbus protocol
Communication problem between master and slave Modbus devices.
Transferring Data from A/B PLC via MODBUS RTU
Transferring scaled analog data from Allen Bradley SLC 5/05 PLC to a LT100 (Tbox) using MODBUS RTU
Redundant ControlLogix PLC and a Third Party
What is the generally accepted hardware setup to exchange data between a redundant set of A-B ControlLogix PLC's and a third party?
By MrAnon on 17 September, 2015 - 7:08 pm
Add 2 ENBT modules, one in each of racks. For example, let's call one module 'A' and the other 'B'....
Auto Slave Address Detection in MODBUS by Master
Need suggestion for Auto slave Address Detection on MODBUS by Master on both TCP and RTU.
By Carlo on 18 September, 2015 - 9:31 am
If you know what the device is, you can read a register that has a unique and static value (if it...
HMIBackup not backing up RSView program.
Connect a Sensor to Laptop
Connecting a sensor to a laptop via USB port
Problems with MODBUS communication with BRC300.
Selection Criteria of PLC When Installing WHR
i want to know the general rule for the selection of PLC.
Ovation 3.31 with ELC Configuration
Using Ovation 3.31 with ELC Configuration to communicate with third party device.
Siemens PCS7-FF Communication with Fieldbus
Foundation Fieldbus configuration issue in SIMATIC Manager Software
Modbus TCP/IP client for IPv6
Looking for a IPv6 Modbus TCP/IP Client
how to set up communication b/w citect SCADA 7.1 and vijeo citect 7.2
Looking for a relay that I can activate through a wireless network
Using Function code 17 For Auto Detection of Slave Address
How does the Function code 17 detect slave address?