D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual download pdf (Page 7)

Modbus for Field Technicians

Page 7

Inputs

Think Binary inputs.

Also known as Inputs.

Also known as 1xxxx inputs (xxxx is the place holder for the specific input’s

point number).

Coils

Think Binary outputs. Named coils after the coil in a relay which is activated

to energize a circuit. The original PLC’s were relay replacement machines.

Also known as Outputs.

Also known as 0xxxx inputs (xxxx is the place holder for the specific input’s

point number).

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D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual Page 7