Outrage
Member
Hi All,
I'm looking for some basic help on operating Step 7 Version 5.3. Ive connected to an S7-400 PLC on our ethernet network using the above software and can monitor the blocks. I'm not an STL programmer and am used to ladder and the blocks contain a mixture of STL and LAD. My question is:
when monitoring the LAD online the rungs turn green to indicate the power flow through the networks but how do I tell what the STL is doing? i.e. the status of the addresses in the STL. All I can see is the STL code which doesn't change in appearance wether i'm online or offline.
Sorry if this sounds a bit dense but my programming experience is with AB equipment and this Siemens stuff has always seemed a bit Alien!
Cheers,
Lee
I'm looking for some basic help on operating Step 7 Version 5.3. Ive connected to an S7-400 PLC on our ethernet network using the above software and can monitor the blocks. I'm not an STL programmer and am used to ladder and the blocks contain a mixture of STL and LAD. My question is:
when monitoring the LAD online the rungs turn green to indicate the power flow through the networks but how do I tell what the STL is doing? i.e. the status of the addresses in the STL. All I can see is the STL code which doesn't change in appearance wether i'm online or offline.
Sorry if this sounds a bit dense but my programming experience is with AB equipment and this Siemens stuff has always seemed a bit Alien!
Cheers,
Lee