adccommunitymod (AutomationDirect) asked a question.
Created Date: July 06,2009
Created By: a agnone
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Under panel manager, DEV001 settings. When PLC Protocol is ECOM, I can fill in the IP Address by using node list, that is good. Is there a reason why Sub Net and Gateway are not included. A couple of times I had to develop a HMI for a plc on another subnet and it would have been nice to be able to develop it and see how it worked in my office. I had to go where the PLC was to try it out. Also to be able to use it in the office and see how machines are doing on other subnets would be good too. Normally a PLC and its HMI are together in the same location so the subnet and gateway are not needed. There are times when I would like to develop and try it out away from the plc. I know we do strange things here. Someone is going to tell me to use the web browser.
Created Date: July 07,2009
Created by: OpZed
Check these places for what you might be looking for:
C-more Help, search for "Online Link List "
EA-User-M Hardware User Manual, Page 5-19 & 5-24
Created Date: July 07,2009
Created by: jackson
If you go into the "Touch Panel Network " window and click on the Ethernet Port tab, you will see a selection to enter in the Subnet Mask and Default Gateway for the panel there.
Created Date: July 07,2009
Created by: a agnone
Jackson the one you are talking about looks like the info needed to talk to the C-More and upload from the panel verses the one in Panel Manger/DV001 looks like the one so the C-More can reach the PLC. Is this correct to say? I say this because I can program and get info from the C-more on a different subnet because of the settings in Touch Panel Network. I can not get the C-more to talk to the plc because I am on a different subnet. If I go on the same subnet then it works. The gateway is the key. The panel mangaer only ask for the IP address.
Created Date: July 07,2009
Created by: jackson
C-more will initiate a message and send it via the Default Gateway address setup in the Touch Panel network when you enter an IP address into Panel Manager Device settings that is not on the same subnet as the C-more itself, just as it will respond to a message from a device not on it's subnet back to the Default Gateway IP.
You don't need a seperate Default Gateway field for the Device settings.
Think of your PC. You have only a Default Gateway IP address for your Network Interface card. You do not specify a seperate Default Gateway IP address for each webserver you wish to access.
Created Date: July 08,2009
Created by: a agnone
I see what you are saying, but I do not think this is happening in the Touch Panel but this does not seem true in the Panel Manger. I say this because I can not have the C-more reach the PLC from a different subnet, verses I can program the C-More on a different subnet. It looks like the Touch Panel Manager takes care of the programming, remote access, etc. and the Panel manager takes care of the C-more talking to the PLC. There seems to be two different thing going on in the C-more. They seem to have isolated the c-more finding and talking to the plc seperate from other events. If it was true what you are saying, I should be able to have the c-more communicate to the plc on a different subnet. I can not. Put a C-more and PLC on different subnets. Go to panel manager and scan the network. You will not find the plc you want to hook up to. No big deal, I just think they thought who in the world would want to have their c-more and plc on different subnets.
Created Date: July 08,2009
Created by: jackson
You are talking about 2 altogether different things in your post.
If it was true what you are saying, I should be able to have the c-more communicate to the plc on a different subnet. I can not.
You can if you properly configure the PLC address, C-more project and router in between. I just tried it to make sure I wasn't going crazy. I had C-more configured as a 10.1.1.xx and the PLC as a 192.168.1.xx and they worked fine.
Put a C-more and PLC on different subnets. Go to panel manager and scan the network. You will not find the plc you want to hook up to.
C-more is not even involved in the action you describe above here. This is the interaction between your PC running the C-more programming software and the PLC. If they are on different subnets, there should be either a router involved or multiple Network Interface Cards in your PC both of which I would assume you would have difficulty getting the 'browse ' capability in Panel Manager to work with. The browse feature does a broadcast, which doesn't work well with different subnets. But the browse feature is only a software convenience. It doesn't determine whether C-more can actually talk to the PLC or not.
Created Date: July 09,2009
Created by: a agnone
Hi Jackson, if you would like to call me you can. I hate all the typing hahaha. I connect my c-mores to the plc's using ethernet, so what I tried was putting a c more on 10.20.4.101 / 255.255.254.0 / 10.20.4.1 and the plc on 191.9.7.4 / 255.255.254.0 / 191.9.7.1. The C-more can not communicate with the plc because the panel manager / DV001 under ethernet only ask me for the IP address assuming they are both on same subnet. I can talk to both of them from my PC because under Touch Panel Mangaer I can enter all the required info to transfer over my switches and routers. Normally you connect the C-More and PLC on the same subnets. I was trying to develop a HMI from my office before I took it out to the machine. This is why I think there are two different things going on in the C-More. One for pc comms etc using the Touch Panel Manager and another for plc to C-More comms using Panel Manager. Now if you had both on two different subnets and the C-More communicated with the plc, wow I have to get with IT and see what is going on. I can communicate with both with my pc but I can not have the C-More communicate with the PLC. hhmmm.
Created Date: July 09,2009
Created by: jackson
Yea, sounds like a router setup issue to me. You should be able to tell your IT guys that you want IP 10.20.4.101 to talk to 191.9.7.4 and they can configure the router to do that.
I am thinking that I am not totally clear on what you want to do. I am getting the impression that maybe you want C-more to be on 2 different subnets, which would require 2 Network Interfaces.
If that is what you are wanting, then I agree that would be a cool feature.
Created Date: July 10,2009
Created by: a agnone
Thanks for the info. Have to get with IT to see what they say. My pc and cmore are on 191.9.2.x and the plc is on 10.20.4.x. I can ping from my computer both cmore (191.9.2.x) and plc (10.20.4.x). I can not get the cmore to talk to the plc. When I go to the panel manager and hit list, all the plc's for 10.20.4.x do not show up. I only see plc's on 191.9.2.x. From my pc (191.9.2.x) I can program any plc or c-more on any subnet.
Created Date: July 13,2009
Created by: HMI Eng
When you are in the C-more Software, under Panel Manager, and you select Node list, this is a function of the subnet the PC and the PLC are on. It has nothing to do with what subnet the C-more panel is on. You are only selecting the PLC from a list that could be obtained by the PC. to do this your PC Network Card and the PLC should be on the same subnet. This is just a convenient utility.
What Jackson said about the Touch Panel Network, Ethernet Port Tabis correct. This is one place the Ethernet Port settings for the panel can be configured. They are saved in the panel when the project is downloaded.
The other way is to browse for the panel, select the panel from the list of panels found and select Change IP Address... this is where you can change the Panel Ethernet Port Settings online.
Hope this helps.