Issue with parameter handling LWE and Logo delay timers

Problem description

In one of  my older circuits I want to be able to change timer setting on remote. I want to try this with LWE, but I can not get it to work.

The problem that I have is that there seems to be no way to transfer analog  timer information from the webpage to the schematic.

I have tried several setups. One of the most obvious ones is to use an analog input to transfer the analog timer data tot the timer. This works fime in simulation mode, without LWE.  I can change the value in the input field of the analog value and the TH parameter will change accordingly (see image 1-3) But adding LWE will not work as LWE will not allow the input to be writable (see red circle). Of course the webpage will stay blank because you can not change the value.

The only available options in LWE that are writable are outputs or markers.  Changing the value will indeed transfer the data tot he circuit, as the online mode and webpage shows. However : the timer TL parameter will not accept the value.

The reason why I use an analog amplifier between the input value and the timer is that timer fields by design do not accept direct analog inputs.

Of course I tried several other options, like using VM parameter transfers, flags, network input/outputs,  but the issue remains.

It looks like digital inputs have the same feature, I tried to implement a simple pushbutton on the webpage, but LWE/Logo only accepts the fysical inputs.

One thing that could be a problem is that the AX parameter of the analog amplifier is discribed as an input. AQ is the output, but LSC this will allow this output to be connected to the TH parameter input of the delay timer.  This looks inconsistent.

Can somebody give me a clue on how to solve this ? See Word attachement for the circuit and LWE setup screenshots. 

THANKS ! 

LSC 8.3

LWE1.1.0

Logo 6ED1052-1MD08-0BA1, Firmware V1.83.02, hardware FS03

At first:

You can not write values to physical analog inputs (AI) per remote. This is not possible, that can only the physical hardware.
But you can use network analog inputs (NAI). The addresses are from the VM memory.

Second:

You can by using Parameter-VM-Mapping and a scale time in LWE directly write in parameter of the timer.