Comm between HMI & S300 Slave

engrselva

Member
Join Date
Dec 2007
Location
singapore
Posts
23
Dear experts
I am facing problem in HMI communication with Slave. the project uses 1 master 313C-2DP, 1 slave (313C-2DP) and 1 HMI. they are connected with profibus.Both master and slave can commmunicate. further more Maslter and HMI can communicate. But, Not slave and HMI. I tried all possiblity which I know. Both HMI and Master are connected with bus terminating resistor. all are set with same bus speed...
could any one give some guide to solve problem....
\

Thanks in advance.


regards
selva
 
Master Polls Data

If your communication is set up between master PLC and HMI u must pack ur Data from the Slave to the Master...

You did not specify your HMI.This will help alot.
 
Hi there
Your HMI will talk to master CPU and not slave CPU
So transfer the data of slave CPU to Master CPU and from there to HMI !
 
RheinhardtP said:
If your communication is set up between master PLC and HMI u must pack ur Data from the Slave to the Master...

You did not specify your HMI.This will help alot.




deen more information to pin-point exact problem.

HMI type

Comm protocol between Slave and HMI
 
Thanks RheinhardtP
Actually long time ago I did similar project with same confuiguration and was able to communicate bettween HMI (MP277) and Slave plc. But , the diffrence is both of them are 314C-2DP. As we wanted to reduce the project cost we use this 313C-2DP plcs. I am using same configuration and all most all are same blocks. only CPU is different. Now gives problem.

As you suggested i can do it but there are lot of data have to be polled from Master. So, is there any way to pull the dats for HMI from slave directly?


regards
selva
 
manmeetvirdi said:
Hi there
Your HMI will talk to master CPU and not slave CPU
So transfer the data of slave CPU to Master CPU and from there to HMI !
Id there anything need to be done on configuration or is there any bus conflicts bettween HMI(MP277) and Slave (313C-2DP)?
 
manmeetvirdi said:
Hi there
Your HMI will talk to master CPU and not slave CPU
So transfer the data of slave CPU to Master CPU and from there to HMI !
Hi Thanks for your suggestion. In the project, there will be profibus break while the system in operation. At that time the slave should talk to HMI. that is why the communication between HMI and slave is importan. Is it possible to have 2 master (PLCs) and 1 HMI in profibus protocol? Can you please give some guide on this?


regards
selva
 
Hi Engrselva
You can make both the 313C-2DP as master and connect them using CP 342-5. And then your HMI can talk with both of them even is one CPU is down. You can find the step by step guide about how to do this over here.
Goto to the topic D12.
Manmeet
 

Similar Topics

Hi all ! I can't figure out how to setup the modbus RTU comm. to connect a Koyo DL250-1 CPU with a Panelview Plus 600 from Allen-Bradley. I use...
Replies
8
Views
3,921
Hi guys, Somebody knows the driver that has to be selected to setup communication between two Red Lion HMI's? Thanks.
Replies
1
Views
1,680
Hi to everyone, this is my first thread in this forum, I hope you can understand my english... I'm from Argentina I have a problem! I have a PLC...
Replies
4
Views
3,242
Hi I am trying to program Comm loss between a SLC 505 and compact logix that talk each other to stop a machine. Can you please help:lolis:
Replies
1
Views
2,421
Hello experts! So I'm migrating old PV600 RS-232-DH485 (2711-K6C5) communicating to ML1500 LRP to a new PV+ 700 (2711P-K7C4A8). I've...
Replies
1
Views
1,378
Back
Top Bottom