While "Write At" is a code function, you may also need to interface with the station using via a serial terminal if you are using a GSM or Bluetooth module.
"write at command station v104" A low-level write instruction to variable memory region V104 of a remote programmable logic controller (the “command station” in a SCADA system). Why interesting: Writing to a command station directly (instead of a field device) implies you’re altering control logic parameters, mode switches, or interlock conditions — potentially risky in live automation.
The "Write At" instruction is used to store persistent data in the microcontroller’s (Electrically Erasable Programmable Read-Only Memory). This ensures that critical settings, such as locomotive addresses or turnout states, are saved even after the power is turned off.
In addition to its core features, Command Station V1.04 offers several advanced features that can take your writing to the next level: