Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 4163661, Entry date: 08/27/1996

OP 393-IIC - New Connection Feature and New Order No.

  • Entry
  • Associated product(s)


Concerns products with the Order Nos.:                                      


6ES5 393-0UA13    OP 393-II C  (new)                                        

6ES5 393-0UA12    OP 393-II                                                 




_OP 393 in conjunction with the S5-90U and S5-95U Mini PLCs_                


The new S5-90U PLC can only deliver 0.3A of supply current at               

it's programmer interface. For this reason the OP 393-II has been           

converted to CMOS technology. The new designation is OP 393-IIC             

and the new Order No. is 6ES5 393-0UA13 (Product Version 1, Firm-           

ware Version 2.1).                                                          


The OP 393-IIC is fully compatible with the previous versions.              

Both units are identical in appearance, function and price. Only            

the components used differ, resulting in a lower current consump-           



The table below shows the possibilities for connecting the  two             

OP 393 versions to U series programmable controllers with cable             

lengths of up to 3m.                                                        

"Without" means:   No 984 cable adapter required                            

"With" means:      Connection only with a 984 cable adapter.                


Note: A 984 cable adapter is always required with cable lengths             

between 3m and 1000m!                                                       


     OP !  OP 393 /OP 393-II        !  OP 393-II                            

        !  (6ES5 393-0UA11/-0UA12)  !  (6ES5 393-0UA13)                     

PLC     !                           !                                       


S5-90U  !       With                !  Without                              

S5-95U  !       Without             !  Without                              

S5-100U !       Without             !  Without                              

S5-101U !       Without             !  Without                              

S5-115U !       Without             !  Without                              

S5-135U !       With                !  Without                              

S5-150U !       With                !  With                                 

S5-155U !       Not possible        !  Not possible                         



Your SIMATIC contact at the local Siemens office will answer                

any further questions you may have.                                         




Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit