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Siemens AG
Entry type: Product note Entry ID: 4140682, Entry date: 08/27/1996

Modular PID and Fuzzy Control - New Revision Level A03

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  • Associated product(s)


Concerns products with the Order Nos.:                                      


6ES5 848-6FC12   Modular PID and Fuzzy Control software package             

6ES5 848-8FA.1   Modular Closed-Loop Control software package               

6ES5 848-7FA.1   Modular Closed-Loop Control software package               




_Reason for the change:_                                                    


On page 4-61 of the English manual it says: "The Controller OFF             

function has priority over all other controller modes. It can be            

used as a protective function." .... ""0" is always output when             

the speed controller is switched off."                                      


This is not always true because in the controller modes Manual              

and SHAWD=1 the current manual value is output instead of "0".              


_Upgrading to revision level A03:_                                          


An upgrade is available from your local Siemens office. Please              

specify the ID No. or Serial No. of the original software on                

your order to be eligible for the special price.                            




The same fault also occurs with the Modular Closed-Loop                     

Control package (Order No. 6ES5 848-8FA.. and 6ES5 848-7FA..).              

In view of the fact that this software will be replaced by the              

Modular PID and Fuzzy Control package, no fault correction will             

be carried out.                                                             




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