PLC Controller Programmable Logic Control Module Industrial Board DC 24V for CPU224XP Item Type: PLC Controller Material: PCB Digital Input: Number of Input Points: 8 Input Signal Type: Switch contact signal or level signal, supports positive and negative trigger insulation circuit. Insulation Circuit: Optocoupler Isolation Digital Output: Number of Output Points: 6 Insulation Circuit: Mechanical Insulation Analogue Input: Number of Input Points: 2 Input Range: 0~10V or 0~20ma, the PLC corresponding value range is 0~32000. Conversion Accuracy: 12 bits. Corresponding Address: AQW0. High Speed Counter: Number of Input Points: 3 channel single phase, 2 channel AB phase. Pulse Frequency: 100K per channel for single phase. RS485: 2 channel standard PPI communication ports, supports PPl and free port communication. PPI Baud Rate: 9.6K, 19.2K, 187.5K. Free Port Baud Rate: 1.2K to 115.2K. Expansion Port: 1 channel, can expand 7pcs I/O modules. Battery Information: 1 x 3V 40mAh CR1220 button battery (delivered with built in battery).