
Relay Module Input And Output Communication
Product information: Output section: Relay: NC (normally closed) COM (common foot) N0 (normally open) Relay connected to the load: the maximum parameters 220V 10A recommended below 220V 6A. Relay is just a switch off and on, without any voltage output. Can only send commands through 485 communication to control the relay to open and close. Input section: IN connected to the switch or voltage signal (3V - 30V) Function: One: Set the device address Two: read the device address Three: read all IN input status (only for the address, can not be read in broadcast mode) Four: read all relay closure status (only for the address, can not be read in broadcast mode) Five: read the device software and hardware version number Six: relay operation on and off and LED switch Seven: all relays open and close Eight: Relay and input IN associated operation Packing list: Relay Modules*1 Product Image: