CHARACTERISTICS

Supply voltage DC7-40V

Relay output contact isolation

The communication interface supports network ports;

Communication baud rate: 2400480096001920038400 (can be modified through software, default 9600)

Communication protocol: Supports standard Modbus RTU protocol.

Equipped with flashing and breaking functions, it can include parameters in the command and operate the relay to automatically turn off after a period of time;

2、 Product Features

Two way relay control,

Remote control via Ethernet cable

3、 Main parameters

4、 Interface Description

5、 Wiring method

1. Relay wiring instructions

6、 Instructions for using configuration software

Use the "Ethernet Configuration Software" (available for download) to configure the device address and network communication mode of the device.

For detailed configuration methods, please refer to the "Ethernet Configuration Software User Manual" document.

The device parameters have been configured and tested using a virtual serial port or network debugging assistant.

7、 Instruction Description and Detailed Explanation

This product supports standard Modbus instructions. For detailed instruction generation and parsing methods, please refer to the register table in this article and consult the "MODBUS Protocol Chinese Version".

Modbus protocol Chinese version reference:
http://www.juyingele.com.cn/software/software/Modbus%20POLL Software and User Tutorial. rar

Modbus Register Description

This control card is mainly a coil register, which mainly supports the following instruction codes: 1, 5, 15

Coil register address table:

remarks:

① Modbus device commands support the following Modbus addresses:

00001 to 09999 are discrete outputs (coils)

10001 to 19999 are discrete inputs (contacts)

30001 to 39999 are input registers (usually analog inputs) 40001 to 49999 are holding registers (usually storing device configuration information)

Using a 5-digit code format, the first character determines the register type, and the remaining 4 characters represent the address. Address 1 starts from 0, such as 00001 corresponding to 0000.

② Table of baud rate values correspondence

③ Relay status can be queried through address 30002 or address 00001--00002, but control can only use address 00001--00002.

The data length of 30002 address is 16 bits. It can represent up to 16 relays.

The corresponding results are as follows:

The bit 8 of the data in register 30009 is the same as the data in register 00001.

Similarly, the same goes for optocoupler input. The bit8 and bit9 of register 30003 and registers 10001 and 10002 correspond to the specified hardware.

The register address follows the PLC naming convention, where the real address is obtained by removing the highest bit and then subtracting one.

Instruction generation instructions

Application example and explanation: In addition to the dip switch address, the default broadcast address for this device is 254. When there is only one device on the bus, there is no need to worry about the dip switch address. Simply use the 254 address. When there are multiple devices on the bus, select different addresses through the dip switch and send control instructions based on address differentiation.

Note: The RS485 bus can mount multiple devices. When there are multiple devices, use the Juying configuration software to connect them.

The instructions can be obtained through the debugging information of the "Juying Soar DAM Configuration Software".

Instruction generation instructions: For instructions not listed in the table below, users can generate them themselves according to the Modbus protocol. For reading and writing relay coils, it is actually reading and writing coil registers in the Modbus register. The address of the relay register has been explained in the previous text, and users only need to generate read and write instructions for register operations. For example, reading or writing the status of relay 1 is actually a read/write operation on the coil register 0001 corresponding to relay 1.

Detailed explanation:

Control 1 relay (taking the first circuit as an example, refer to this example for other channels)

Sending code: FE 05 00 00 FF 00 98 35

Relay card return information:

Return code: FE 05 00 00 FF 00 98 35

1: Relay inquiry
Query 2 relays
FE 01 00 00 00 02 A9 C4

Relay card return information:

FE 01 01 00 61 9C

2. Analysis of flashing open and closing instructions
Flash development code: FE 10 00 03 00 02 04 00 04 00 0A 00 D8
Flashing sending code: FE 10 00 03 00 02 04 00 02 00 14 21 62

Return code: FE 10 00 03 00 02 A5 C7

3. Analysis of fully open and fully closed commands
Full development code: FE 0F 00 00 02 01 FF D1 D3
Total disconnection sending code: FE 0F 00 00 02 01 00 91 93

Complete disconnection and full open return code: FE 0F 00 00 02 C0 05