SRT3028 is an 8-channel general-purpose analog input module, which also has the following functions: filter parameter configuration, input range configuration, communication status monitoring, configuration status monitoring. SRT3028 occupies input 9word and output 2word, and the module needs to be used with SRT series coupler, and IO terminal cannot be used alone; The module functions described in this paper are realized on the premise of normal communication between SRT3028 module and the coupler (1word=2byte).
Note: during module parameter configuration, first set module parameters in the plc initialization program, and then enable the parameter configuration bit of the coupler to make the parameter configuration effective; The second modification of module parameter configuration takes effect only after the module is powered off and restarted once.