The 20DA I/O’s (ARDBOX) HF+ PLC option offers 20 analog, digital, PWM, and interrupt I/O’s (10 inputs and 10 outputs). See Figure 20 I/O’s (ARDBOX) HF+ Datasheet p2 below, for general and technical features, and input, output, and communications details.
The 20 I/O’s (ARDBOX) PLC offers one each of I2C, SPI, TTL, RS-232, and RS-485 (half or full duplex) services. An I2C server may have up to 127 client nodes, which allows a network with more than 7,100 total relay, analog, digital, PWM, and interrupt I/O’s.
One input is software configurable as either interrupt or digital isolated. One input is digital isolated. Eight inputs are software configurable as either analog or digital isolated.
NOTE: The digital and interrupt input voltage range is from 7 VDC to 24 VDC.
NOTE: The analog input voltage range is from 0 VAC to 10 VAC.
Seven outputs are switch configurable as analog or digital/PWM (Pulse Width Modulation). Three outputs are digital/PWM.
NOTE: The digital/PWM output voltage range is from 5 VDC to 24 VDC, and the current must not exceed 70 milliamps.
NOTE: The analog voltage range is from 0 VAC to 10 VAC and the current must not exceed 20 milliamps.
NOTE: The PWM outputs are 5 Vdc; connecting these to components that require only 3 Vdc may damage those components.