CT-1228 8 channels digital input/24VDC/NPN

CT-1228: 8 channels digital input/24VDC/NPN ◆ the module supports 8 channels digital input, and the input low level is valid. It could support NPN sensor. ◆ the module could collect digital output signal of field equipment (dry contact or active output). ◆ the module could be accessed to 2-wire or 3-wire digital sensor. ◆ the internal bus and field input of the module use opto-isolator. ◆ the module supports the input signal holding function, and the holding time can be set. ◆ the module carries 8 digigtal input channels with LED indicator on each channel. ◆ supports counting function after adding counting sub-module. ◆ each input channel of the module supports a 32-bit counter with the counting frequency <200Hz. ◆ the module could 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.