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Low Cost, Ultra Compact
H-series Relay-Ladder Programmable Controllers

Mighty Little PLC: T22H-npn 

Photograph of T22-npn

" Your Programmable Logic Controller got proof and nice working condition on board of aircraft.  If I have any more projects in future, we'll take more PLC's. Thanks a lot for nice product. -  Click here to read what other users say about our PLC products and services

The mighty little T22H programmable logic controller packs 22 high current, high voltage I/O, 20 timers and 20 counters into an incredibly small pocket-size board (See photo below, it is about the same size as a 3.5" floppy disk). T22H-npn PLC features high quality, detachable screw-terminal blocks for ease of field-wiring and ease of maintenance. The 12-24V DC input interface and high current (1.0A per point) outputs permit T22H to drive solenoids, contacters or small motors directly.

A basic T22H controller comprises 12 inputs, 10 solid state transistor outputs, 128 internal relays, 20 timers, 20 counters and 8 sequencers. It has a built-in RS232/RS485 port which communicates with the PC using a simple DB9 cable.

Main Features

• 22 I/Os with LED indicators
  - 12 inputs (12 to 24VDC interface)
  - 10 outputs (12 to 24VDC, 1.0A current per output)
  
• Programmable in Ladder Logic software with SIMULATOR - TRiLOGI
  - Creates ladder program using meaningful names
  - Uses simulator to fully test programs on the PC screen before downloading
  - On-line monitoring of all I/O logic states on ladder diagram or on full screen
• Networkable by RS485 (two-wire) bus - Built-in RS485 adapter. Each controller can assume an 8-bit ID. A host computer or an M-series PLC can access any H-series PLC linked to it by just two wires!
• EEPROM program storage (100 years)
• Detachable screw terminal blocks
• Ultra compact - 10cm x 8.8cm x 2.0cm   (
• Ultra low cost

Download T22H-npn Installation Guide (96K) - inst-t22.zip

Download H-series PLCs User Manual (109K) - userguid.zip

Starter Kits

To help new users get started quickly, we package Starter Kits for different models of Programmable Logic Controller which includes practically all the hardware and software (except power supply) needed to start using the PLC.

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