FX5U (IQ-F) built in High Speed Counter Function. If you are having troubles setting up high speed counters, you can follow this Mitsubishi guide as the programming is somewhat different to an FX3 PLC. PLCs of the FX range have historically allowed high speed signals (faster than the scan time) to be connected [...]The post Technical Tip - FX5U (IQ-F) built in High Speed Counter Function appeared first on CDL.