Shenzhen KYL Communication Equipment Co., Ltd KYL-812 4-way Wireless I/O Module I. Function description 4-way I/O wireless transmission in time. Receiver module’s relay output reacts to transmitter module’s ON-OFF input in time. Once transmitter module inputs OFF, the receiver module will output relay close correspondingly. Once transmitter module inputs ON, receiver module’s relay will output open correspondingly. All the 4 ways are independent to each other. No program, no wires, users can remote control switching. This module is widely used in industrial controller, wireless monitoring, waterworks automation and other projects. Figure 1: input output relationship diagram Tel: +86-755-86643962 Email: [email protected] Web: www.rf-data.com Shenzhen KYL Communication Equipment Co., Ltd II. Parameter Table 1. Technical parameter Name Range Power supply 9-15V D.C. Transmission 1-3km distance Output numbers - Typical value 12V Remarks Output current ≥500mA - LOS 4 outputs Relay output 4 inputs Passive contact inp Low level<1V Max load capacity: DC 30V 1A Low level close High level>4.5V High level open Output type - Input numbers Input type - Input type II DC 0-12V Transmitting current Receiving current Dimension - 300mA - - 30mA 82mm*82mm - III. KYL-812 terminal block introduction Figure 2. Terminal block introduction Tel: +86-755-86643962 Email: [email protected] Web: www.rf-data.com Shenzhen KYL Communication Equipment Co., Ltd IV. KYL-812 application example Figure 3. application example Transmitter signal can be a group of limit switch, button or a group of high/low level. Receiving signal can be alarm light, motor, electric motor, valve or PLC. V. DIP definition Table 2: DIP5-8 working mode choosing DIP 8 Transmission Setting mode choosing Input changes 0 trigger transmitting mode Fix time 1 transmitting mode DIP 7 DIP 6 DIP 5 Tel: +86-755-86643962 Master and slave Setting choosing Slave 0 Master 1 Collecting mode Forbid Setting 0 Enable 1 Repeater/feedba ck mode Forbid Setting Enable 1 0 Email: [email protected] Description At fix time transmitting mode, you must set a module as master,another as slave Description Only be valid at fix time transmitting mode (Slave module will send response message after receiving master’s signal) Description At collecting mode, module will work as a Modbus slave. Repeater/feedback,master/slave, transmission mode are all invalid Description At feedback mode, transmitter module can monitor receiver module’s output condition Web: www.rf-data.com Shenzhen KYL Communication Equipment Co., Ltd Table 3: The corresponding channel for DIP 1-4 Ch. No. DIP DIP Ch. No. DIP Ch. No. DIP Ch. No. 1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16 Notes: * For most users "input changes trigger transmitting mode" is OK-----DIP7-ON * To avoid interference caused by many pairs of modules working in the same place, you are recommended to choose different frequency channels for different systems. * At fixed time transmitting mode, there should be one module works as master and another module as slave. * changing the DIP switch just takes effect after the module is re-powered on. VI. PIN Definition Table 4: Terminal block’s PIN Definition Pin name Pin No. Definition COM1 COM2 1 2 1 2 3 4 5 6 7 8 Tel: +86-755-86643962 GND VCC IN1 GND IN2 GND IN3 GND IN4 GND Remarks Power ground DC：9-15V The 1st ON-OFF input The 2nd ON-OFF input The 3rd ON-OFF input The 4th ON-OFF input Email: [email protected] Web: www.rf-data.com Shenzhen KYL Communication Equipment Co., Ltd COM3 COM4 1 GND 2 3 LED1 GND 4 5 LED2 GND 6 7 LED3 GND 8 1 2 3 4 5 6 7 8 LED4 OUT1 OUT2 OUT3 OUT4 The 1st passive control line output (5V) The 2nd passive control line output (5V) The 3rd passive control line output (5V) The 4th passive control line output (5V) The 1st relay dry contact output The 2nd relay dry contact output The 3rd relay dry contact output The 4th relay dry contact output VII. Using method A. Install antenna for the module B.Set the DIP switch ready according your application requirements, connect corresponding ON-OFF input and output terminals. C. Power supply on for modules(9-12V). Output current should be more than 500mA. D. Now the transmitter module’s inputs can control the receiver module’s output. E. Our modules support 2-way communication, means when a module works as input, it can also works as output of the controlled side, and vice versa F.To avoid interference, please choose different frequency channels for different systems if there are more than 2 groups of modules using in the same area. VIII. Working mode explanation 1. Input changes trigger transmitting mode Any input changes happening will trigger the module send its condition. This mode has the advantage of high speed, real-time transmission, and low power consumption. Because module only transmits data once there is input changes. Tel: +86-755-86643962 Email: [email protected] Web: www.rf-data.com Shenzhen KYL Communication Equipment Co., Ltd 2. Fixed time transmitting mode At this mode, there should be one master and one slave module. The master will synchronize with the slave every 1s, means the master will transmits its condition to slave every 1S and the slave will feedback its condition to master every 1S. If the time master cannot synchronize with slave reaches at 3S, all contacts will disconnect. They connects until the master is synchronizing with slave again. There will be 1s transmission delay at this mode. 3. Collecting mode At collecting mode, DIP8(transmitting mode), DIP7(master/slave mode) and DIP5(repeater/feedback mode) are all invalid. At this mode, module works as a Modbus slave, it can not transmit data actively. Master can be a PC connecting with a wireless data module or other data terminal. Data terminal sends Modbus RTU command and requests slave feedback collection condition or control slave’s ON-OFF output. Slave’s ID can be 1 to 254. Figure 4: collecting mode network schematic 4. Feedback/repeater mode At feedback/repeater mode, receiver will retransmit the command it received and make it reach longer distance. It functions as a repeater. The transmitter will output related ON-OFF condition on its output COM after receiving retransmitted command, meanwhile, the output indicator will be ON/OFF. Its output condition will be the same with its input condition. If receiver didn’t receive the command, it will not retransmit, feedback will fail. Master’s output condition will be not the same with its input. This function can monitor receiver’s output results. Tel: +86-755-86643962 Email: [email protected] Web: www.rf-data.com