Reading and Writing

Used only to define the % variables of a TX packet, without performing communication with a device. This Tag reads or writes values of TX's % variable fields before sending a command. The data type of each Tag must match the data types informed when defining the command. If a reading command is used, it returns the variable fields of a TX message, one for each Block Element, if using a Block Tag, starting with the variable's index indicated in the N3 parameter.