Another communication example for our blog library.
The easy one, should be do it only one HMI and one PLC. But to do it more interesting we are going to set up a Modbus ASCII network of one HMI(master) with 3 PLC’s(slaves).
To setup any system I always divide the problem in two basic parts, Hardware and Software.
Hardware (physical level):
Take a look to the pinout of all the devices to connect, in our case the PLC is easy, and for the HMI, take a look to the next image extracted from the instruction manual.
Software (Protocol):
An old trick that I learn after a couple of communication challenges is write in a post it the communication protocol that you are going to use. Basically, because you will need it so many times, and is very easy to make mistakes!!
Protocol used:
7,N,2 (Modbus, ASCII), 9600 bps
Network configuration:
HMI Address: 0 (master)
PLC1 Address: 1 (Slave)
PLC2 Address: 2 (Slave)
PLC3 Address: 3 (Slave)
Software (Computer level):
And finally, to show you how to configure the communication with the ScreenEditor and WPLSoft, I’ll ask you to download the next file, where you can file the programming examples, and some video file with the exe extension, to follow all the process.
HMI – 3 PLC communication example
Enjoy!
Delta Industrial Automation 
December 19, 2021 at 5:31 pm
link is not working. can you please send me on my email muhammad.munir@yahoo.com
December 18, 2021 at 3:57 pm
sir
your ftp link is not working. please send me all hmi and plc examples. thanks in advance
October 10, 2021 at 9:14 am
Link not work.
May 28, 2021 at 9:37 am
link not work
April 19, 2021 at 6:43 pm
It all works as described! Great job, Delta is my favorite brand for IA. Other examples work great as well.
March 20, 2021 at 3:45 pm
Please help. I have delta PLC model DVP40EC connected with RS485 communication cable on COM port 1. I’m getting errors 1 to 3 during start up of the waste water treatment plant. How do i solve it urgently as the system is currently down. email me on percymushambi@gmail.com
January 9, 2021 at 12:44 pm
I can not download rar file contains examples. Anybody has downloaded them?
May 5, 2020 at 4:00 pm
Hi, do you have an example of how to send ASCII messages from a Delta DOP-B HMI through rs-232 ?
March 31, 2020 at 6:02 am
thank you sir great work
August 17, 2019 at 4:24 pm
have model:dop- B07S411 when i make connection between PLC & HMI but i have message that’s COM 3 STATION 1 : communication Error 3
please help me to solve this problem
April 3, 2018 at 11:22 am
Guys how do you get over the com 3 id:0 communication error,i am using aTP70P with IO
December 15, 2018 at 4:48 am
im want hepl thank you 0ne hmi connec 3plc
December 17, 2018 at 4:21 am
hepl 1 hmi 8 plcs
March 19, 2018 at 6:54 pm
sir iam currently using nb dop soft hmi bt their port has been occupied by plc and energy meter communication port but i need to change one that is com2 to ethernet is that possible without changing addressing in ladder logic
February 8, 2018 at 5:32 pm
have model:dop- B07S411 when i make connection between PLC & HMI but i have message that’s COM 3 STATION 1 : communication Error 3
please help me to solve this problem
February 8, 2018 at 5:29 pm
have model: dop-B07S411 when i make connection between PLC & HMI but i have message that’s COM 3 STATION 1 : communication Error 3
please help me to solve this problem
August 17, 2019 at 5:10 pm
am facing same problem pleasev solve
December 14, 2017 at 12:54 pm
Hi i am first time configuring 2 plc in 1 hmi. As per delta standard i have made logic & programmed. Loaded in plc’s & as well in HMI. But still my communication is not done. I am getting error message of COM 1 error & COM 2 error.
(Kindly check your parameter & wire). Wiring is connected correctly & perfectly. But i am not getting idea that why the communication is not communicated still. What would be the exact problem. Anyone kindly response fast.
November 28, 2017 at 11:07 am
Dear delta …
i have DVP20SX2 PLC (i used WPLSoft 2.42) with HMI B10S411 when i make connection between PLC & HMI but i have message that’s COM 1 STATION 1 : communication Error 7
please help me to solve this problem.
August 25, 2018 at 2:20 pm
Hi , I have Com 1 station 1 Error 8 : invalid value when i set my temperature in dtc 1000c in address 1001 and the problem doesn’t solve in youtube or any sites so please can find the solve of the problem here ???
November 8, 2017 at 5:17 pm
Hiii,
I am Using AS38BSTD HMI and interfacing it with VFD. But it shows me “COM 2, Station 3” error.Let me know as early as possible.
Thank you in advance.
October 13, 2017 at 1:24 am
thanks!!!!!!!!!!!!!
:)
January 4, 2017 at 5:42 am
Dear Sir
How r you? I purchase a new plc dvp14es v6.8. When I write to plc (v6.8) a ladder program with WPL Software (2.37). The program is not run and inverter is not showing any frequency parameter.
But our old plc v5.8 is same ladder program is run with inverter and all parameter is showing.
Please tell me what I do for this solve problem
Best Regards
December 2, 2016 at 11:06 am
I’m using Delta DOP -B with PLC DVP
the problem that once I tried to set any of X registers I get an error message ” COM2 Station 1 Communication error7″
this error appears only once I press the button that set X0 to 1
For Y register its working fine.
Please Help
August 13, 2016 at 1:45 pm
Can we do communication with danfoss VLT drive. Please tell me how….
May 23, 2016 at 11:06 am
I need to communicate Delta PLC (master), HMI DOP-B seried(slave) and Text Panel TP04(slave) over RS485 RTU/ASCII. Please guide how plc read registers values of HMIand Text Panel. Regards Atif
March 23, 2016 at 5:58 pm
Greetings .
Anyone can help me I need to control several plc siemens s7 200 with a single screen Hmi delta through the serial port 485 , as would be the prog plc and screen.
Thank you for your help
November 20, 2015 at 3:26 pm
Hi everyone, I want to know how communicate controllogix L33 with HMI delta B07E515. I just want to read registrers but idont know how to put the adress in oreder to read PLC
Thanks
September 17, 2015 at 2:54 am
Dear delta experts
i unable to solve this problem.
problem is hmi display show the error .
erroe is com2 station 7 communication error 3.
mhi is dop b series.
what is the solution
April 25, 2015 at 5:47 am
Dear sir,
It is possible to communication of delta plc and ABB hmi…….
if yes……then how to do this…….
March 19, 2015 at 12:34 pm
Hey, I’m using DVP ES2 module it has been already programmed even when I powering up the PLC then continuously com2 is blinking while i didn’t link any com port. how can i resolved this problem?
I attached the serial communication cable to the com1 port and tried to take PLC online mode but nothing happen and went to the simulation mode. I’m using WPLsoft 2.38.
November 25, 2014 at 6:20 pm
I’m using Delta DOP -B with PLC DVP
the problem that once I tried to set any of X registers I get an error message ” COM2 Station 1 Communication error7″
this error appears only once I press the button that set X0 to 1
For Y register its working fine.
Please Help
October 28, 2016 at 11:58 pm
I get the problem is same with this case.
But I see this message since 2014 why not reply or solution ?
November 19, 2014 at 5:30 am
I’m using eserver and I want log vehicle number in excel format.Kindly help me in this regard.
September 12, 2014 at 5:30 am
hello sir, i want to communicate 4 dvp14ss2 plc to my HMI using rs 485 please guide me…
June 12, 2014 at 8:43 am
Dear Delta,
I have PLC Model DVP 40 EC
24DI-DC / 16DO-R
what cable I should use to connect with HMI ?
please inform me the type of cable
and tell me the distributor Delta in Indonesia.
thank you.
May 26, 2014 at 6:10 pm
I have 4 HMI DELTA and one PLC and I want to make network to only read data form PLC.
How do these work?
Thanks
April 25, 2014 at 8:28 am
vijayakumar
Dear delta,
I have delta plc DVP-SA2 How to communicate rs485 with ATMAL ic 89s52 microcontroller. pls help me.
January 8, 2014 at 9:44 pm
Mr. Delta the link is broken, I haven’t go it.
January 9, 2014 at 10:07 am
Do not use IExplorer, and you will be able to enter.
January 9, 2014 at 12:47 pm
Thanks Mr. Delta for your answer, I don’t use IExplorer, I use Google Chrome,
¡Vaya! Google Chrome no ha podido establecer conexión con la página ftp2.euro.delta-corp.com.
December 21, 2013 at 7:38 am
Hi , can merge between HMI GT32 Panasonic with Delta PLC (DVP) , thanks .
December 20, 2013 at 4:22 pm
HMI – 3 PLC communication example……
the link : Not working….
October 10, 2013 at 2:55 am
Hi, I am using DOP-B07S411. right now I am using com 2 to comunicate with ASD-A2 servo driver using modbus protocol for setting servo parameter. right now I am planning to add 2 more servo driver and want to set the parameter using one HMI. Is it possible using HMI I am using now? How to configure the communication setting.Thanks
September 4, 2013 at 5:56 am
while connecting dvp-ex with my computer (Rs232) from plc i am able to read data in my computer but not able to write it ti plc “It is showing error code(02).i.e device connected out of range even for “X0” 2.)if hmi – plc is connected hmi is able to read the data but not able to send it :its showing error code (07).Any solution!!!!!!
September 3, 2013 at 1:27 pm
sir,iam using delta plc dvp-20ex if i give x0(or any input) as address the program is working form control pannel but from software iam not able to force or set ON It shows ” DEVICE ADDRESS OUT OF RANGE FOR THE CONNECTED MODEL (CODE-2)” I AM using Rs-232 cable PLEASE GIVE SOLUTION …..2.)if i connect it with HMI I AM ABLE TO READ PLC STATUS BUT not ABLE TO WRITE IT TO PLC (ERROR CODE 07).
July 12, 2013 at 7:32 am
can i connect HMI BO7S211 WITH DELTA PLC{DVP-20EX} IF SO ,WHAT ARE THE SOFTWARE MUST BE USED
July 12, 2013 at 8:11 am
Yes!
The same of the example, check it out!
July 12, 2013 at 1:36 pm
sir,Please specify the software
July 12, 2013 at 1:40 pm
DOPSoft and ISPSoft
November 1, 2021 at 11:33 am
DELTA DOP software version 2.07
DELTA DOP software version 4
OS Windows 10
can we run / execute both the software in same PC ?
Imran Sabir +923028664074
Faisalabad – PAKISTAN
January 21, 2013 at 8:56 pm
Furthermore, eserver only allows read, I need write some data from many PCs, for example> an operator from one PC in production area turn on a pump, and turn off from quality area by using a PC (remotely) those PCs are part of a LAN network
January 22, 2013 at 10:03 am
To write, you can use eRemote, or write a recipe using eserver
January 21, 2013 at 8:47 pm
I’m actually using eserver, but I need something to exchange the status from PLCs from many PCs, and one way to do this possible is save the status of outputs/inputs into a base, I tried saving the variables from the PLC’s on the base, but the response time is very slow,
One PC is working like a server and the others works like clients, when the status is changed only the server realized changes,
In order to improve this app, do you have a better idea??
January 22, 2013 at 10:02 am
How many PLC and data you have?
Ethernet is quite fast, so it´s strange your problem is the performance speed
January 15, 2013 at 10:53 pm
Hi Delta, I have a same network, but I want to read/write booth PLC using an application based on Visual Basic for a SCADA, Only I had download some excell data with eServer , it’s posible to write from any program from my PC into HMI DOP-B07E515??? Which one???
January 16, 2013 at 9:26 am
Why don´t you use eserver?
October 24, 2012 at 8:33 am
Hello Sir,
From the PLC(Delta) to the PC is wrong Communication,how th set the Baud Rate on the PLC,TQ
April 18, 2012 at 12:49 pm
MR. MAHTAB FIRST OF ALL U DEFINE THE COMM. PROTOCAL OF RS485 IN UR PLC PROGRAM WHICH IS SFECIFIED IN TOOL BAR THEN CONNECT UR PLC RX+ &RX- TO DISPLAY COM TO WITH THE HELP OF 9-PIN CONNECTOR ON PIN NO.1 AS +ve AND PIN NO. 6 AS -ve. I HOPE U WILL DO IT.
March 9, 2012 at 10:46 am
Dear Mathab,
I´m sorry but is impossible to me to help everybody because a matter of time.
Nevertheless, I can put you in contact with your local distributor, If you tell me where are you from
March 9, 2012 at 10:13 am
Dear Delta,
I am unable to communicate between Delta DVP ES14 and Delta DOP-AS using RS485. Please help me in this regard. I have go through the procedure in the above application but the problem remains.
January 14, 2012 at 6:39 pm
thank you
but this 3plc connect in parallel with HMI or in series
January 18, 2012 at 9:59 am
Dear Saed,
In bus comunication physically speaking use to be always in paralel (+ with + and – with -), but the way of managing the communication is serial.
October 14, 2011 at 10:11 pm
I have 3 HMI DELTA and one PLC and I want to make network to control my process line
How do these work?
Thanks
October 17, 2011 at 11:24 am
I recommend ethernet for that kind of network configuration.
With RS485 is possible, but difficult and with read/write limitations.
On the other hand, with ethernet, you only need to configurate as a client on the HMI connected to the PLC and as a host for the other two.
March 20, 2013 at 3:29 am
can you post an example for this communication
April 18, 2011 at 9:58 pm
I want to post quick hello and want to say appriciate for this good article.
March 20, 2011 at 6:03 pm
hey, the link you provided is not opening.
what can we do.
can you send it to me.
March 28, 2011 at 12:19 pm
Sorry Bee,
Link updated!