For indicator software debugging, see《14.1 G series key functions and settings》。 Setting and operation of communication parameters with HART protocol indicator: If the instrument wants to communicate with the upper computer, the corresponding parameter setting shall be carried out before communication. The parameter setting is shown in Table 21. See 14.1 G series key functions and settings for key operation Setting and operation of communication parameters with Modbus protocol indicator: If the instrument wants to communicate with the upper computer, the corresponding parameter setting shall be carried out before communication. The parameter setting is shown in Table 22. See 《14.1 G series key functions and settings》 for key operation If the instrument wants to communicate with configuration software such as Kingview, the variable name and address are shown in Table 20.