Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 4335320, Entry date: 07/21/1997

New SIMATIC C7-621 and C7-621 ASi Controllers

  • Entry
  • Associated product(s)
The new SIMATIC C7-621 and C7-621 ASi controllers are now available.        

SIMATIC C7-621 is the consistent further development of SIMATIC C7 into the 

lowest performance level.                                                   

                                                         *See Full Version* 


Concerns products with the Catalog No.'s:                                   


6ES7 621-1AD00-0AE3    SIMATIC C7-621 controller                            

6ES7 621-6BD00-0AE3    SIMATIC C7-621 ASi controller.                       

6ES7 621-1AD00-8.A0    C7-621 / C7-621 ASi manual                           


The smallest of the SIMATIC C7 controllers is now available in the versions 

C7-621 and C7-621 ASi. They are only half the size of the C7-624 to C7-626  

controllers and differ in the I/O expansion.                                


_Technical features:_                                                       


Integrated S7-300 CPU:                                                      

   Processing speed:   0.3 ms / K binary statements                         

   User memory:        12 Kbytes                                            

Integrated OP3 operator panel:                                              

   LC display with 2 lines x 20 characters, 5 mm high, backlit              

   5 softkeys under the display                                             

Customized design available                                                 


_Integrated I/Os:_                                                          



   16 digital inputs, 24 V, non-isolated                                    

   16 digital outputs, 24 V, 0.5 A, non-isolated                            

   4 analog inputs, +/- 10 V, +/- 20 mA, non-isolated,                      

   resolution: 11 bits + sign                                               

   1 analog output, +/- 10 V, +/- 20 mA, non-isolated,                      

   resolution: 11 bits + sign                                               

C7-621 ASi:                                                                 

   Integrated AS interface (master, CP 342-2)                               

   for up to 31 slaves with up to 124 binary I/Os                           

Integrated system communication via MPI                                     


Dimensions (WxHxD): 168 x 120 x 69 mm                                       

Expansion via integrated interface and IM 621:                              

   up to 4 modules (SM, CP, FM) from  the S7-300 range                      


_Programming and configuration:_                                            


CPU:            With STEP 7 V3.1 or STEP 7-Mini from V3.2 or higher         

Operator panel: With ProTool or ProTool/Lite from V3.01 or higher           



The new controllers are contained in the 1997 ST 70 Catalog and in the 1997 

CA 01 Interactive Catalog. In the Internet you will find information on     

the SIMATIC controllers under:                                              








Your SIMATIC contact at your local Siemens office will answer any more      

questions you may have.                                                     



Requests and feedback
What do you want to do?
Note: The feedback always relates to the current entry / product. Your message will be forwarded to our technical editors working in the Online Support. In a few days, you will receive a response if your feedback requires one. If we have no further questions, you will not hear from us.
Support to the statistics
With this function the IDs found are listed according to number (format .txt).

Generate list
Copy URL
Display page in new design
mySupport Cockpit