Ctek Multi-Function IO Module - Z1201

Multi-Function Io Module - Analog/Pulse/Digital

Ctek's multifunction I/o module provides the flexibility required to serve a wide range of analog and digital input requirements and industrial rated output control to manage everything from indicator lamps to motor start/stop operations, all under the Automation Control application.

The model Z1201S is an RS485 controlled module that has 8 digital/PCM outputs and 8 digital/analog/pulse inputs. RS485 addressing and the functioning of each individual pin is established under program control by the Automation Control Application. Pull-up circuitry can be connected to each input or left open for analog or pulse inputs. Daisy chain power and communication connections are provided to support multiple I/O modules or other RS 485 devices.

Ctek's Z1201S I/O module can be easily interfaced with almost any industry standard sensor including: 0-5VDC, 4-20 ma current loop or 0-10VDC as required.

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General Specifications

  • RS485, 2-Wire Interface
  • 8 open collector outputs, 30VDC max
  • 8 multi-mode inputs, 30VDC max
  • Pulse Counting
  • Analog Inputs
  • Digital Output

Input Specifications

  • Maximum Input Voltage: 30V DC
  • Input Logic
    • Low <= 1
    • Hight >= 4
  • Sample Rate: 512 hz

Configurable IO Specifications

Digital Outputs

  • Open Collector Output Rating
    • 30V 350mA single output
    • 250mA with all outputs on
  • Max Update Frequency: 60 Hz
  • Pulse Width Modulation: 7.8 KHz; 8-bit resolution

Analog Inputs

  • Measureable Range: 0 - 5 VDC
  • Read Frequency: 20 Hz
  • Analog Input A/D Conversion: 12-bit with 10mV Offset

Pulse Inputs

  • Max Pulse Width: 3 m sec.
  • Max Count Stored Between Reads: 32,767


  • Input: 6 - 24 VDC (external source)
  • Consumption: 100 mA*

*Excluding active inputs


  • Operating Temperature: -30 to +70°C
  • Humidity: 90% Non-condensing

Dimensions & Weight

4.22"L x 2.37"W x 1.312"H*

*Excluding block plugs and DIN clip

10 oz without power adapter


Ctek Z1201 Feature Summary

  • RS485 2-wire interface
  • 8 open controller output options
  • 8 multi-mode inputs all configurable to either pulse, digital or analog
  • Compatible with industry standard sensors ranging 0-5 VDC, 4-20 ma, or 0-10 VDC as required
  • Dasiy chained power and communications can support multiple I/O modules or other RS485 devices