Three Types Of Mitsubishi PLC Output Interfaces

- May 02, 2018-

PLC relay output interface circuit, working process: When the internal circuit outputs digital signal 1, there is current flowing, the relay coil has current, and then the normally open contact is closed, providing the current and voltage of the load conduction. When the internal circuit outputs a digital signal of 0, no current flows, the relay coil has no current, and then the normally open contact opens, disconnecting the load current or voltage. That is, the internal digital circuit is converted into a signal through the output interface circuit to make the load act or not.

Three types: relay output: contact, short life, low frequency, AC and DC load; transistor output: no contact, long life, DC load; thyristor output: no contact, long life, AC load.