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  by US Patents 7,375,636 and 8,896,425




GlueLogix Timing Control Unit (TCU)

The core of most GlueLogix designs is the Timing Control Unit (TCU).  Designed around the Parallax Propeller 8 core by 32 bit RISC processor, the TCU can be configured for a wide range of input and output configurations.

Two versions of the TCU are currently active.  Version 3, introduced in 2010, is in use in around 50 applications. Version 4 is used for EncodeInMotion and other high end applications. Version 5, based on the XMOS multicore ARM chip, is in development.

Common Features:
  • Parallax Propeller, 5 MHz External Clock (software sets 80 MHz internal clock)
  • Reliable control loops down to 100 uS (unlike any PLC)
  • input response less than 1 uS (unlike any PLC)
  • 9-24VDC power input
TCU V3:
  • 6 industrial I/O interfaced through Grayhill Standard modules. I/O configuration is changeable by plugging different modules. Options are 60 VDC and 110 VAC. 
  • Standard I/O configuration is 1 DC input (GAP), 5 DC output (STOP, MARK, ERR, BAD, GOOD)
  • 4 RS232 serial ports, one with DTR (PC) others 3-wire (RFID readers).  Up to 7 serial ports can be set up with wire changes using onboard level shifters.
  • 3 dedicated stack light outputs (RED, YELLOW, GREEN).
TCU V4:
  • 18 I/O interfaced through socketed LTV series optoisolators.
  • I/O direction is solder configurable.
  • Standard I/O configuration is:
    • First 6 I/O match standard TCU V3 configuration
    • Next 6 are outputs
    • Last 6 are inputs.
      This board is optimized for 24VDC I/O.
  • 5 RS232 serial ports, one with DTR (PC), others 3-wire (RFID readers).  Up to 11 serial ports can be configured in software with external level shifters.
  • 9-24 VDC, reversible, on standard  2.1mm jack.
  • Through Holes for additional +- power supplies.
  • 3 dedicated stack light outputs (RED, YELLOW, GREEN).
  • Isolated USB connection
  • Not formally tested yet, but does not reboot when hit with piezo spark source
The Parallax Propeller chip itself uses soft peripherals, so with proper I/O conditioning, TCUv4 could drive up to 12 UARTS. TCUv5 has 12 UARTS, 18 I/O, Ethernet and USB.

Status Jan2019

  • TCUv5 first boards made, software in progress.
  • TCUv4 available as finished board or source licensed design.
  • Multiple TCUv4 used to implement first delivered EncodeInMotion system.
  • TCUv4 in use as multilane RFID read controller in on-press test systems designed for Tamarack Products.
  • TCU V4 used as a high speed controller for Voyantic Tagsurance, before they had their own I/O box. 
  • TCU V3 used in around 50 projects.  Available as finished board and as a source licensed design.
  • IndustRFID firmware reads HF and UHF at 20/sec using Feig readers, and ThingMagic Vega historically.  It also encodes and controls the stepper in the GlueLogix rewind machine.
  • Ladder Logic software in long term development.

Contact GlueLogix to express interest, or to request features.




TCU V3 in Deployed System

Two TCUv3 in one box for Encode/Verify in an Applicator
      system




TCU V4


TCUv4 in first deployment


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