High-Speed I/O Modules

High-speed I/O modules are PLC expansion modules that count or generate high-frequency pulse signals that standard digital modules cannot capture. The high-speed input side is used to read encoder and counter pulses for position, length and speed measurement, while the high-speed output side is used to give pulse commands to stepper and servo drives. The category includes, from the Delta Electronics AX-5 series, the AX-502HC10-0A 2-channel 500 kHz high-speed input module and the AX-502PU01-0A 2-channel 500 kHz high-speed output module. Select the channel count and maximum pulse frequency according to the application, the sink or source signal structure according to the circuit of the encoder or drive, and the module family according to your PLC. Standard digital I/O modules are not a substitute for these modules; pulses at the kHz level cannot be tracked completely by the PLC scan cycle.

Products

How to choose High-Speed I/O Modules

High-speed I/O modules are PLC expansion modules that count or generate high-frequency pulse signals that standard digital modules cannot capture. The high-speed input side is used to read encoder and counter pulses for position, length and speed measurement, while the high-speed output side is used to give pulse commands to stepper and servo drives.

  • Separate sensing, motion control, logic processing and operator interface requirements.
  • Select signal type, supply voltage, communication protocol and I/O count for the machine network.
  • Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.

Frequently asked questions

What is High-Speed I/O Modules and where is it used?

High-speed I/O modules are PLC expansion modules that count or generate high-frequency pulse signals that standard digital modules cannot capture. The high-speed input side is used to read encoder and counter pulses for position, length and speed measurement, while the high-speed output side is used to give pulse commands to stepper and servo drives.

What should I compare when choosing High-Speed I/O Modules?

Select the channel count and maximum pulse frequency according to the application, the sink or source signal structure according to the circuit of the encoder or drive, and the module family according to your PLC.

Where can I find technical details for High-Speed I/O Modules products?

High-speed I/O modules are PLC expansion modules that count or generate high-frequency pulse signals that standard digital modules cannot capture.

PLC Input and Output Modules Selection Guide