7/19/2006 3:12 PM | |
Joined: 11/8/2005 Last visit: 6/5/2024 Posts: 335 Rating: (3) |
How can I use Leased line or Dialup modem between WinCC and S7-300? |
7/19/2006 4:05 PM | |
Joined: 4/24/2006 Last visit: 12/9/2024 Posts: 8781 Rating: (1172) |
Hi, Have You seen the following link: http://support.automation.siemens.com/WW/view/en/21916828 Best regards, Wizard |
1/23/2007 5:29 PM | |
Posts: 3149 Rating: (171)
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Hi I think using Sinaut is the best way for solvingyour automationproblem http://support.automation.siemens.com/WW/view/en/22537809 http://support.automation.siemens.com/WW/view/en/21062247 nemo |
1/24/2007 12:10 PM | |
Posts: 133 Rating: (5) |
Hy! I read the documentations and examples found at: http://support.automation.siemens.com/WW/view/en/22537809 and I think I know how it is working :} So... you need an S7-200 PLC (CPU224, or better... I think I will use CPU224 XP, because I need 1-2 analog inputs)... and a modem MD720-3 (+antenna) connected to the PLC with PPI cable. You need the library block (coming with the SINAUT Micro SC - you can download a library from the specified URL, but I don't know if it is that library, or it is just an example, demo... I don't know). This library contains some function for controlling the communication, and for sending SMS (These functions are using AT commands, but all of them has implemented a full comunication driver, returning OK in case of success, or an ERROR CODE in case of an error). You need a fix public IP address for the SINAUT Micro SC station: or using an internet connection - this is an easiest solution, or using GPRS modem - but in this case you need a fix public IP from the mobile network operator, because usually using GPRS you have dinamic IP's. If you can't get a fix public IP address you can use the dyndns service. You need to configure in SINAUT Micro SC a connection for each station and must be defined the following parameters: Station name, Station number, Password. You need to configure these parameters for each station (I think using the WDC_INIT function). If you have configured correctly the station, you can send/recive data using the WDC_SEND/WDC_RECIVE functions. Or you can send SMS message using the WDC_SMS function. Please correct me if I'm wrong, Thanks |
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