Outputs Digital Outputs Digital output (DO) are for the ON/OFF in your control scheme. Some examples are the On/Off control of motors, lighting, solenoid valves, door locks. All Rievtech PLCs have a number of digital outputs. Relay Outputs MIRCO PLC Relay Outputs AC or DC Supply Existence of relays as outputs makes it easier to connect with external devices. A relay is non-polarized and typically it can switch either AC or DC. Output Relay dry contacts are the quick choice since they are voltage independent and they provide an easy interface to a customer’s LOAD system. Relays generally have a higher current rating than transistors, but have a mechanical life span that has to be considered.
The maximum ON output current that can be switched by our Micro PLC is 10A for the resistance load and 3A for the inductive load. Transistor Outputs Transistor type outputs can only switch a DC current. MIRCO PLC Transistor Outputs Power Supply Micro PLC digital outputs are sinking transistor outputs - which M means that they provide the ground connection turn on a load. - + When switched on under program control, they complete the circuit to turn on any connected DC device up to 60VDC and 300mA. LOAD Output They are smaller and thus offer higher I/O count per unit of circuit board real estate. You may also choose them for faster switching Output speeds and longevity over relays. 8