The M485-REL3-I module contains 8 digital input channels and 3 A relay output channels. & nbsp; All digital input channels can be used as 16-bit counters. In addition, the digital input channels can be selected either as zinc or source type via wire connections. DCON Protocols that can be configured via software. There are also options for configuring power-on and secure values. 4 kV ESD protection and module 3750 VDC insulation are also provided to improve the noise protection capabilities of industrial environments.