There are 6 RS 232 and 2 RS 485 digital channels, which are used to communicate with on-line devices.
Eight analog input channels (4 ~ 20 ma) are used to connect the on-line equipment on site and read the measurement data of the on-line equipment through analog (data acquisition accuracy and measurement stability ≤0. 1%, at least 12-bit ad).
Two (4 ~ 20) mA output channels (stability ≤0.2%).
Eight switch input channels are used to detect the working state of external equipment. The input range of switching voltage is (0 ~ 5) V.
8 switch output channels (4 relay nodes, 4 DC24V mos transistor drive outputs (2A current)).