ex_ilustre Posted May 14, 2009 Report Posted May 14, 2009 Good day! I want to convert 4 special addresses of A1SCPU of Mitsubishi to siemens Step7 program. These addresses are M9000(fuse blown), M9005(AC down detection), M9006(battery low) and M9008(self diagnosis error). I just don't know what OB's to use. Should I use OB81 and OB82? How do I configure these OB's? Need help... Any help you'll give will be appreciated. Thnx.
GixRamones Posted May 15, 2009 Report Posted May 15, 2009 The OB= are block organizational. Do not have to configure! but to manage with the code within them. The battery was used on the old cpu is not new. Iside of Ob to put on a Merker that the rest of the program calls. Es. for low battery warning -- In OB81 set M110.0 = / / Low Battery -- For other Ob 80 Cycle Time Fault, OB82 Perif Error, Error Rack..etc. There some Obxx also with schedule. Read the manual for choose the most suitable to you. Anyway, I use the block function SFC51 RDSYSST through lists that tells you everything about led, of local or remote Fault, hardware information construction plc , information about patner in profibus.. etc. .. Bye.
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