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7/4/2007 11:02 AM | |
Posts: 9 Rating: (0) |
Hello, We are planning to use ET200S on profinet. Is it absolutely necessary to use MMC card for the working of IM151-3 ? Regards |
7/5/2007 10:41 AM | |
Posts: 5822 Rating: (412) |
Hello. To say it simple, yes. This is because the IM 151-3 requires the MMC to store the Device Name on it. Best regards J_Bell |
9/25/2010 10:09 PM | |
Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (308) |
Hello, I would say that it depends. In all cases, if you want to be able to replace a defective IM151-3 module without the usage of any programming tool (to assign its name to the spare module used for repair), you will need the MMC. But new PN-CPUs and IM151-3 PN (AB23, fw 6.x onwards) support the replacement of an IM151-3 without the usage of an MMC, if you fulfill some requirements (the major ones being the input of the topology parameters and suitable components). Modules supporting that: http://support.automation.siemens.com/WW/view/en/36752540 In the same direction you have what is sometimes called "automatic commisioning" described in this document in chapter 5.2. http://support.automation.siemens.com/WW/view/en/22981197 In the manual of the new IM151-3AA23, there is the following note in the chapter "Device replacement without exchangeable media/programming device": - We recommend that you reset IO devices that have already been operated to their default settings before you use them again. And on another place: - An IM 151-3AA23 that has been in operation and will now be used as spare part has to be reset to the state "resetting to default settings." Seems that the new IM151-3 PN keeps some data internally. |
Last edited by: jklm at: 9/25/2010 10:16 PMBest regards |
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