LOGO! communicates with all SIMATIC Panels.

Your questions are too general.

The value of a counter has a 32 bit value (DInt). To exchange this value with an HMI, you must use the VM memory (Tools> Parameter VM Mapping). There, a DInt has the name VD.

This also applies to timers.
For timers but not the format is transmitted, but only the total value of the time of the time base as an integer.
Example: Off delay with 2 minutes and 30 seconds. Here is the time base seconds. So a value of 2 x 60 + 30 = 150 would be transmitted.