◆ the module supports 16 channels digital input, supports sink type & source
type input. The input high level (sink type) is valid and the module it could be
connected to PNP sensor while the input low level (source type) is valid, and the
module it could be connected to NPN sensor.
◆ the module can collect digital output signal of field equipment (dry contact or active output).
◆ the module can be accessed to 2-wire or 3-wire digital sensor.
◆ the internal bus and field input of the module adopts opto-isolator.
◆ the module supports the input signal holding function, and the holding time can be set.
◆ by adding counting sub-module, the counting function is valid.
◆ each input channel of the module supports a 32-bit counter with the counting frequency <200Hz.
◆ the module can be set the digital signal input filtering time and the byte transmission order of the counter.
◆ each channel of the module could be set the counting mode and counting direction independently.
◆ the module supports LCD display of basic module information and channel indicating display parameters