Bluetooth&RS485 RS232 Modbus rtu 8 channel relay with remote control

DC7-30V wide voltage power supply, support anti-reverse connection;

8-channel relay output contacts are isolated, with NO and NC, 10A 250VAC / 10A 30VDC;

8-channel switch input, DI input has optocoupler isolation which used for switch detection, and supports dry and wet contacts;

2 channel red LED indications which used to indicate power and working status; 8 channel relay status indications;

The communication interface supports RS485 + RS232, power supply isolation and signal isolation, reliable communication;

Communication baud rate: 300bps~38400bps (can be modified by software, default 9600);

Communication protocol: support standard modbus RTU protocol, read and write according to register address; support Bluetooth protocol, can be controlled by wireless link with mobile phone or computer.

You can set 253 device addresses.

Support input and output linkage, such as device itself linkage or dual-device linkage, which is convenient for multi-terminal control;

With software which can set the parameter and IO control;

Support software and hardware customization, welcome to consult (this product does not have a network interface);

 Technical parameters

Switch input wiring [IO808D]

The switch input interface is compatible with wet and dry nodes. Please pay attention to the different connection methods of active and passive signals.

The internal optocoupler circuit of the switching value acquisition terminal is as follows,

COM+ is an unconnected terminal [namely an empty terminal], COM- is the negative terminal of the power supply, which is equivalent to V-.

 The description of the Modbus register

This control card supports multiple function code communication, please refer to the following table.

Register address table:

The operation of Bluetooth function

Configuration relay action state

Normally the default state of the module is self-locking without delay. Currently our relay supports the following actions:

(1) Relay self-locking mode: that is, each relay is opened and closed in two steps, which requires two instructions to control. The performance on the software page is to press the button to turn on, and then to press it to turn off.

(2) Relay jog mode: This mode has no changes to the module, but it can be switched in the app, which means that the relay is turned on by pressing the button, and when the button is released, the relay is turned off.

(3) Relay delay mode: after each relay sends an open command, the relay opens, and automatically closes after a specified time delay.

(4) Relay timing action: you can set the relay timing to open, close, jog and other operations.

(5) Relay mutual exclusive action: 2 channel relays mutually exclusive action, one way is opened and the other way is closed.

(4) Long-time Bluetooth occupation and automatic disconnection function: This function is to prevent the module from being occupied by the mobile phone app for a long time. After being turned on, the Bluetooth is connected and automatically disconnected after a period of inactivity. The smart community access control version is applicable.

(5) Automatic disconnection function after an action is completed: This function is set to cooperate with some Android phones that cannot actively disconnect. After connecting to the module and sending an action command, the module will automatically disconnect after the action is completed. The smart community access control version is applicable.