6842 8 Channels Ethernet Remote IO support RS485 Ethernet Wifi,
is 8 channels remote IO controller launched by Shanghai ZLAN after ZLAN6042. The controlled channels from 4 channels of 6042 extending to 8 channels, including 8 channels Digital Input(DI), Digital Output(DO), Analog Quantity Input(AI). The DI support dry contact and wet contact with opto-isolator; DO is relay output with 5A 250VAC or 5A 30VDC control ability; the before 4 channels of AI input support 0~5V voltage quantity input, the after 4 channels support 4~20mA current input, the accuracy is 10 bits. ZLAN6842 support 2 communication methods of Ethernet, RS485.
ZLAN6842: it’s an IO controller using Ethernet to control, the usually using communication protocol is Modbus TCP protocol, in this case the module converting protocol choose Modbus TCP to RTU, DI/DO/AI are corresponding to different register. If want to control through Modbus RTU protocol, set module converting protocol to “No”, by using TCP to send Modbus RTU protocol can do the control. The product can conveniently and reliably though Ethernet to collect switch value, control relay, collect sensor.
