Compact PLC reference design optimizes size and performance

November 07, 2018 // By Ally Winning
The new Go-IO PLC reference design from Maxim features 17 configurable IOs in a small form factor that is half the size of a credit card.

Go-IO allows developers to put intelligence closer to the edge, and actively monitor and communicate equipment health and status information. The reference design is 10x smaller and has 50 percent less power requirements compared to its predecessor, the Pocket IO.

The open-source Go-IO reference design has 12 highly integrated ICs, 17 IOs supporting multiple digital IO configurations, a 4-channel IO-Link master to provide a universal IO interface to both analog and digital sensors, and a robust 25Mbps isolated RS-485 communications channel that provides a reliable, multi-drop data network for uploading time-sensitive health and status information into a local data lake or the cloud.

Go-IO contains the following technologies:

  • MAX14819 low-power, dual-channel, IO-Link# master transceiver with sensor/actuator power-supply controllers.
  • MAX22192 8-channel octal digital input with isolated Serial Peripheral Interface (SPI), wire break detection and accurate input current limiters in a 6mm x 10mm package.
  • MAX14912 8-channel digital output driver featuring 640mA high-side switches or push-pull configurable outputs, capable of achieving 200kHz switching rates while providing proprietary fast, safe demagnetization inductive kickback protection.
  • MAXM22511 integrated 2.5kVRMS isolated power and digital isolated RS-485 transceiver module supporting 25Mbps data rates with +/- 35kV ESD protection in a compact 9.5mm x 11.5mm package.
  • MAX14483 / MAX14130 6-channel, 3.75kVRMS galvanic low-power digital isolator in a compact 20-pin SSOP package / 4-channel 1kVRMS galvanic digital isolator in a small 16-pin QSOP.
  • MAXM15462 Himalaya uSLIC voltage regulator ICs and power modules for cooler, smaller and simpler industrial power supplies.

More information

https://www.maximintegrated.com/go-io

Video

https://www.maximintegrated.com/go-io-video

electronica

Hall C4, Stand 440

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