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EM277的GSD文件。Configuring the EM 277 with older versions of COM PROFIBUS and STEP 7 Entry ID: 2615830 Date: 07/05/2000 QUESTION: How can I configure EM 277 with STEP 7 and COM PROFIBUS? ANSWER: STEP7 up to V5 + SP3 does not yet include the GSD file for the EM 277. You must install this file manually. The GSD file for the EM 277 is called SIEM089D.GSD. This file is located in the Internet of the SIMATIC Customer Support page under Entry ID 183371. Proceed as follows to configure EM 277 in STEP 7: Download the file onto the hard disk. Open the HW Config. Click the menu item "Options>Install new GSD". Select the GSD file. Now the expansion module EM 277 is located in the hardware catalog under "PROFIBUS-DP\More field devices\SPS\EM 277 PROFIBUS-DP". If you hang the module onto the PROFIBUS network, you must specify the I/O Offset in the V memory. You do this in the dialog "DP Slave Properties" under the "Parameters" tab. Proceed as follows to configure EM 277 in COM PROFIBUS:

第三方模拟器，西门子PLCS7－200。