USS protocol

CONTROL MICROMASTER 420 DRIVER WITH S7200 USING USS PROTOCOL


What you need:
+ any S7-200 PLC 22x
+ S7-200 programming software Micro/WIN V4 best is SP5
+ S7-200 instruction library order nu. 6ES7 830–2BC00–0YX0
+ a standard profibus cable with termination
+ the mm420
+ the BOB for the mm420

1. install the instruction library on your PC
2. goto the S7-200 system manual and change the mm420 parameter as descriped in the S7-200 manual
3. create the user program by using the instruction for the library called USS_INIT and USS_CTRL
4. Go to <File, Library memory> and accept the displayed memory location
4. Connect the mm420 to the S7-200 and switch the PLC to RUN mode

If your configuration is right and you enable the inputs you have configured for the USS_CTRL then you can control the drive (RUN, Stop, Dir, Speed).

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