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Using Simatic OPC server to communicate with multiple PLC's

Created by: kapilkk at: 12/5/2007 8:25 AM (6 Replies)

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12/5/2007 8:25 AM	Rate (0)
kapilkk Posts: 17 Rating: (1)	Hi, I wish to communicate with multiple PLC's ( S7-300 series) using OPC server from the PC. I am able to configure single connection and communicate to PLC using VB application.I create a Step-7 project with a PC station and import the .XDB file to station configuration editor. I use OPC SCOUT to define connections and then can access PLC data from VB application using ocx. How to create a project to define multiple PLC's connection, how to import it to Station Configurator? Is this possible? How? Thanks and Regards, Kapil.
kapilkk Posts: 17 Rating: (1)
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12/5/2007 8:49 AM	Rate (0)
Ates Posts: 198 Rating: (17)	you can easily create multiple connections.. if pc station and other cpus are in the same project then create 1 or more connections with netpro selecting defined cpu or if cpus are in other projects which you dont have or dont know.. you can again create a connection with unspecified partner connection and entering ip or mac address of it.. in netpro and you can again export import xdb file. so in netpro just insert more then 1 connections in programming site you need to use connection name like s7_conn_1 s7_conn_2 + tag name there... in scout you cancreate groups when adding items you need to see all connections under where you created them (like under s7tab)
Ates Posts: 198 Rating: (17)	Last edited by: Ates at: 05.12.2007 08:52
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12/5/2007 11:01 AM	Rate (0)
kapilkk Posts: 17 Rating: (1)	If I am getting you correctly, I have to define another PC station in my Step7 project and define connection to the second PLC. If not please correct me. I can create additional PC station in Step7 project, howeverthe same IP address(i.e. my PC address)canot be assignedto the IE general component. This configuration does not compile.
kapilkk Posts: 17 Rating: (1)
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12/5/2007 11:32 AM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello, you can not configure a second PC Station with the same IP on the Same network. You have to configure the second connection in the same PC Station you already have... you may configure several Connections, also unspecified Connections, with several Partners at the same time. Please keep your single PC Station and configure as many Connections as you need... but be aware that you may need another license, if you have only a Lean License. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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12/5/2007 12:46 PM	Rate (0)
Ates Posts: 198 Rating: (17)	yes j_bell has rigth .. you can look to my attached picture and you can see what we wanna say... this is engineering server but i have this under my hand, you njust eed to do same thing. Attachment connections.JPG (489 Downloads)
Ates Posts: 198 Rating: (17)
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12/6/2007 7:58 AM	Rate (0)
kapilkk Posts: 17 Rating: (1)	Hi, Thanks to both of you for detailed help. It works well. I can see the communication working with both the PLC's in OPC SCOUT window. I do not have any licence installed right now here. It is working with the Simatic Net lean demo licence. So I think Siematic Net OPC Server Lean licence should be OK for my application. Thanks, Kapil Konde.
kapilkk Posts: 17 Rating: (1)
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6/14/2018 1:59 PM	Rate (0)
Wit_Moderator Moderator Joined: 8/21/2014 Last visit: 12/20/2024 Posts: 1035 Rating: (14)	New question published by ashishP9970 is split to a separate thread with the subject Question regarding two PLCs on one PC in simulation mode. Best regards The Helping Hand
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards Wit_Moderator
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