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MP277: Profinet or Ethernet?

Created by: FredMM at: 9/7/2009 11:14 PM (2 Replies)

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9/7/2009 11:14 PM	Rate (0)
FredMM Posts: 14 Rating: (0)	Hello, I am using a S7-300 PLC combined with a MP277 that are monitoring some (lots) of values of temperatures. These temperatures are read by the PLC and later on the MP277 "picks" them up and stores the values into .csv files (onto a SD Card). Now this is all fine but my client has required a way to pickup the values without having to always go to the panel and removing the SD Card (obviously i understand that). What i thought about doing was using the MP277 and connecting it to the LAN that exists on the plant. I know that there isno way to share the folders that contain the logs so igota small script from the FAQs that copies the files to a destiantion adress every 4 hours. My problem is: how to i connect the MP277 to the LAN? I know it soundsunbelivable, but i have given so many IPs that i can hardly remember. Also i have checked everything from subnet masks to ips to DNS, etc, etc, etc. And there is no way that i can ping from the PC to the MP or vice-versa. Also i have tried on the Hardware Configuration of the Step7 Manager to create a EthernetNetwork with the IPs,etc. but no luck. As you can imagine i have browsed the automation site about 1000 times and i have not seen anyone with this type of problem (it seems very basic). The IP of the computer is 170.220.x.y and all the threads and manuals always regard the IP as 196.x.y.z. Does anyone know if that is a problem? I have read the manuals of the MP and it is not clear if the LAN port is only just for PROFINET or does it work with "regular" Ethernet. Can someone give me a hand? At this point i am running out of hair! Kind Regards, Fred
FredMM Posts: 14 Rating: (0)
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9/8/2009 7:50 AM	Rate (0)
umencho Diamond Expert Joined: 3/21/2006 Last visit: 1/14/2025 Posts: 10239 Rating: (1182)	Hello Fred, Look at How do you integrate an operator panel into a local network? IP address of panel should be from the same "family" like existing network. For example if IPs into existing network begin with 177.10.1.xxx, panel should heve 177.10.1.xx1. The IP of panel mus be unique, also all existing IPs there. Subnet mask must be the same for all IPs. I guess you'll use switch to connect panel to existing network. The necessary cable is "straight" type. Into Google you can find more info about this cable. Hope this will helps. Best regards, Hristo Mihalev

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9/11/2009 9:14 PM	Rate (0)
FredMM Posts: 14 Rating: (0)	Hi, Once again thank you for your quick reply UMENCHO. I found out what the problem was. I did fllow all the instruction from SIEMENS but still nothing worked. Then i connected my laptop to the ethernet and still nothing. By the end of the day i had enough so i decided to remove the switch and connected it with another cable and it worked. Turns out that the connector if the ethernet cable was poorly done. I still don´t know why it worked with to the laptop and not with the MP but in the end it is working. Kind Regards, Fred
FredMM Posts: 14 Rating: (0)
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