How to code the SK509 wireless switch module?

What is the code?

SK509 is a high-power industrial 4 channels wireless switch module that can be coded and coded by our company. Many customers have asked our company, what is the code? In many applications, it is necessary to use multiple transmitters corresponding to one receiver or multiple receivers to one transmitter to use, and this function can be achieved through code pairing.

How to code the SK509 wireless switch module?

Real-time working mode

After selecting the real-time mode, if there is no code matching, it is a normal one-to-one use occasion. The input changes of either party will be synchronized to the output of the other party's module, and the system is a two-way communication system. Each module has independent four-channel input signal and four-channel output signal, and the relationship between them is mutually corresponding. Each module will monitor the status of the 4 input ports in real time. After any input signal status changes, it will send a wireless signal to the other party. After receiving the signal, the other party will synchronously output its own 4 channels of output status and send back a response. Signal, if the active party fails to receive the response signal from the other party after a certain period of time, the retransmission mechanism will be initiated (the signal is transmitted up to 3 times).

Detailed explanation of the input and output port status of the module in normal working mode:

The logical relationship of the modules is shown in the following table:

For example, module A and module B communicate, the output state of module A corresponds to the input state of module B, and vice versa, as shown in the following figure:

After selecting the real-time mode, if there is a channel that has been coded, the module will monitor the state of the input ports that have been coded. After the state changes, it will send out a wireless signal. After the other party receives the signal, it will synchronize to the one that has coded. The output of the channel. At this time, the channel that has not coded will not send out a wireless signal even if the input state changes. If the configuration of the DIP switches DIP7 and DIP8 is inconsistent with the status read last power-on, the previous code matching relationship will be cancelled. In the immediate mode, the slave will also periodically send an inquiry signal to the master, requesting to return the synchronization status information. If the communication signal fails, the alarm light will always be on to alarm, and the output state will return to 0, and the relay will be in an off state; taking the four-to-one application as an example, the switch control relationship after successful code pairing is shown in the following figure:

Take the one-to-four application as an example, the switch control relationship after successful code pairing is shown in the figure below:

Note: In this working mode, both sides of the module will synchronize the input and output signals for the first time after initial power-on. Therefore, it is not recommended to power-on both the transmitter and the receiver at the same time.

Coding mode

But in real-time mode, you can bind the channels of multiple masters to the channel of a slave one by one through code matching. The code matching steps are as follows:

a) Each module that needs to be coded will be configured with an address ID (there cannot be repeated in a system), if the factory has been required to configure it, there is no need to reconfigure;

b) Dial switch 5 and 8 are set to ON, dial switch 6 is set to OFF (enter code matching mode); if it is the master (transmitting end), dial switch 7 is set to ON, if it is the slave (receiving end) , DIP switch 7 is set to OFF. As shown below:

c) Short the channel INX to be coded from the machine to GND (if multiple channels are shorted to GND, the priority will be given in the order of 1234), and then power on the slave. If no channel is detected to be shorted to GND, the ALT LED flashes, indicating that the code has failed; if a code pairing channel is successfully detected that a channel is shorted to GND, the ALT LED is always on, indicating that it is in code pairing mode . As shown below:

The light will go out. If the code matching is unsuccessful, the ALT LED will always be on.

Precautions:

• During the code matching process, the slave must be powered on first, and then the host must be powered on.
• Only one channel can be paired at a time. If there is no channel pairing, it is the default.
• There is no code matching function in timing mode.
• After the host-side module has a channel that has been successfully coded, the other channels that have not been coded will no longer send signals even if the input status changes.