This device is a custom reprogrammable controller on the base of microcontroller PIC12F1572-I/SN with digital inputs and relay outputs.
It is commonly used in small automations such as: press control, electronic door lock, small scale production lines and other devices, which use a small number of digital inputs and outputs.

Mini PLC 4in 2Relay Out features

• 4 digital inputs (12V÷24VDC) with common ground
• 2 relay outputs (250V 10A)
• Suitable for sensors type: PNP 12V
• Light emitting diodes for state indication of:
• Inputs
• Outputs
• Power supply
• 12V output for power supply of sensors and of limit switches
• Power supply voltage: 9VAC or 12VDC
• Connector for ICSP programming
• Size: 83mm х 30mm
• Suitable for mounting in DIN rail box – Z-103

Note:
The device is programmed with factory test firmware.
When power supply is on:
1. Relays switch on and off successively
2. Relays switch on and off
3. When signal is applied to IN1, RELAY1 switches on
4. When signal is applied to IN2, RELAY2 switches on
5. When signal is applied to IN3, RELAY1 and RELAY2 switch on successively
6. When signal is applied to IN4, RELAY2 and RELAY1 switch on successively

Suitable programmer for microcontroller programming is: PicKit 3 Clone