N228D02 2 Channel DC 12V 24V Relay Board RS232 Serial Port Switch Module for PLC Motor LED PTZ Industrial Control Equipm

Specification 1 Working voltage DC 12V 24V2 Working current Standby 12MA 1 relay conducts 40MA 2 relays conducts 67MA3 Relay output isolation4 The communication interface supports RS232 DB9 serial port5 Communication baud rate 96006 Communication control use the provided command control7 Relay channel 28 With relay status indicator and power indicator9 With jog function you can use the command to operate the relay to open for a period of time and automatically close10 size 68 45 17mm11 Weight 40 3gFeatures 1 2 channels relay controler2 RS232 serial input control3 The on off status of the relay can be read4 Support self locking mode reverse state of relay if relay NO and COM are closed send this command to disconnect NO from COM and vice versa 5 Support momentary mode relay NO is closed with COM and disconnected after 200MS 6 Support interlock mode corresponding relay is closed other relays are disconnected 7 Support control single relay on off operation8 Support simultaneous control of multiple relay on off operationsInstructions For Use Connect to the controller through a USB to RS232 module connect the module to the PC open the serial port debugging assistant select the corresponding port select the baud rate 9600 no parity 8 data bits 1 stop bit Example To turn on all relays send the command 55 56 00 00 00 03 06 AA 0x5556 is the frame header 0x000000 is the reserved byte 0XFF is all relays 0x06 is the command which means multiple relays