4 Channel RS485 Relay Module Modbus RTU AT Command Remote Control Switch for PLC PTZ Smart Home Security DC 12V
Description
Manual Click here to openDescription 1 DC 12V power supply voltage range 9 13V 2 Standby current all relays closed 11 13MA 1 relay open 44MA 2 relays open 77MA 3 relays open 110MA 4 relays open 140MA 3 open closeMomentary Self locking Interlock Delay Read 7 Commands4 Two instruction control mode AT command and MODBUS command5 Under the AT command the maximum delay is 9999 seconds Under the MODBUS command the maximum delay is 255 seconds6 AT commands can be made serial HyperTerminal serial assistant Enter MODBUS commands can be made serial HyperTerminal serial assistant OR Modbus Poll Enter 7 Under the MODBUS command mode it can support up to 32 devices in parallel 8 Size 80 x47 x 19 5 mm9 Maximum load 10A 250VAC 10A 125VAC 10A 30VDC 10A 28VDC 10A 12VDCApplication Automated industry PLC Smart Home Home Automation Wiser Home Identification system Motor FWBW Typical Applications 1 AT command mode A5 OFF in this mode can be through the serial HyperTerminal serial assistant enter a simple AT command control relay AT command mode time up to 9999 seconds2 MODBUS command mode A5 ON you can control a variety of ways Serial Hyper Terminal Control need to manually add the CRC Modbus Poll software control software automatically add the CRC PLC or MCU process control Wiring Diagram 1 DC 12V control circuit Wiring diagram below LOAD may be camera LED lights fans motors and other DC 12V equipment
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