Many programming problems within pvserver are very similar from customer to customer. Thus we will publish examples , which can be inserted in your code.
For example it is possible to make up simple visualizations without manual programming.
You can input your parameters as properties of the widgets in pvdevelop. Then the parameters can be read in the mask.
The strings are also available in mask<X>_slots.h .
// the index corresponds to "id"
static const char *toolTip[] = {
"",
"",
"",
"",
"",
"",
""};
static const char *whatsThis[] = {
"",
"",
"#any string you want, starting with #",
"",
"",
"",
""};
Hint: Specify your data acquisition in "whatsThis" and/or "toolTip" property of your widgets and then use rlModbusClient and pvPrintf for output.