SynPLC

Open Source modular PLC with Microcontrollers

WORK IN PROGRESS

To-Dos

Repo

• Rewrite documentation in english
• add reviewed PCBs
• fill out tech specs of modules once programmed
• Cleanup Repo
  • better folder structure
  • delete obsolete files

Hardware

• Order new PCBs with STM32s
• Assemble new PCBs
• Test new hardware
  • DO
  • DI
  • AO
  • AI
  • XT
• New Modules
  • CPU V2
    • Layout
    • Review
    • Ordered
  • Relais Module
  • PWM Module

Software

• Write Software for new PCBs
  • CPU
  • DO
  • DI
  • AO
  • AI
  • XT
• Porting of SR485 protocol to new hardware
  • Make it use Interrupts
  • Make it more efficient (processing)
  • implement failsafes when no answer
• Define and program CAN protocol
• Write generalized Code for CPU
• define structured Text (postponed)
• import structured text and parse into running code (postponed)

Possible Fixes

• MAX485 with 5V supply voltage on all IO modules ?
  • changed to 3V3 on the CPU
• DIs and DO (alt. switches) re-soldering (dead channels)
• better connector for CPU
• parametrize RS485 lib a bit more (tbd)

issues

• weird additional bytes sent by slave after ACK and CS???
  • resolved