Hi ,

 How can I control my Digital Outputs in LOGO through S7-1200. Is It possible to access the physical address of LOGO directly from S7-1200. I already established the S7 connection. Just want to know how can i Call the address of LOGO?

Thanks,

Jay

 Thanks ixo. I am not using the Outputs in LOGO program. LOGO output just works like an extended DO module. So How to call this Digital Output address? I had assigned bit memory area in S7-1200. I just wanna know how to do the mapping for this bit memory to DO of LOGO. 

Thanks,

Jay

ixo65

You can only wrote directly in outputs of the LOGO! when the outputs are not used in the LOGO! program.
When the ouputs are used in the LOGO! program then the LOGO! program overrides the outputs.

Got it. Sometime I totally forget how to call the bits in a Byte. Fixed it now and it is working now. Thanks again ixo.

Jay

 Exactly what I did. I opened this thread because I was unsure about the memory are of the LOGO outputs and later realise that individual bits can be called within a byte. It was my bad presence of mind. Thanks  a lot again Ixo.

Jay

ixo65

Is the LOGO! configured as a client and the S7-1200 as a server, the outputs of the counterpart unit can be switched on via the inputs without a program in both devices.
To do this, the corresponding entry in the connection list of the LOGO! must be created.

Example:
I0.0 to I0.7 of the LOGO! Switch outputs Q0.0 to Q0.7 of the S7-1200.
I0.0 to I0.7 of the S7-1200 switch the outputs Q0.0 to Q0.7 of the LOGO !.

Hello

may be help this

https://www.blaja.cz/plc-automaty/komunikace-mezi-s7-1200-a-logo8-s-bloky-put-a-get.html

Frantisek Mucka