Delta Dop HMI RS485 Modbus RTU Configuration (Master Device)

Delta Dop HMI RS485 Modbus RTU Configuration for using a Master device
For your questions;
www.mhasanisik.com

[@nguyenphamhung7598]

How can I use link.read() without address fixed parameter ?
Example:
local addrLinkMem = string.format("{Modbus}%d@RW-%d", 3, 100);
link.Read("{Modbus}5@RW-0") --It's work fine
link.Read(addrLinkMem) --Program name: Main(10): "addrLinkMem" Element address input error
Thanks in advanced