General Introduction to Input/Output Modules
Original instructions
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General
The Modicon M340 range includes discrete and analog input/output modules.
Discrete Input/Output
A wide range of discrete input/output modules enables you to select the module best suited to your needs. The characteristics of these modules differ as follows:
Characteristics
Description
Modularity
  • 8 channels
  • 16 channels
  • 32 channels
  • 64 channels
Type of Inputs
  • Modules with direct current inputs (24 VCC and 48 VCC)
  • Modules with alternating current inputs (24 VCA, 48 VCA and 120 VCA)
Type of Outputs
  • Modules with relay outputs
  • Modules with direct current static outputs (24 VCC / 0.1 A - 0.5 A - 3 A)
  • Modules with alternating current static outputs (24 VCC / 240 VAC / 3 A)
Type of Connector
  • 20-pin terminal blocks
  • 40-pin connectors allowing connection to sensors and pre-actuators by means of the TELEFAST 2 prewiring system
The following illustration shows a discrete input/output modules with 40-pin connectors:
The following illustration shows a discrete input/output module with a 20-pin terminal block:
Analog Inputs/Outputs
A wide range of analog input/output modules enables you to select the module best suited to your needs. The characteristics of these modules differ as follows:
Characteristics
Description
Modularity
  • 2 channels
  • 4 channels
Performance and Range of Signals Offered
  • Voltage/current
  • Thermocouple
  • Thermowell
Type of Connector
  • 20-pin terminal blocks
  • 40-pin connectors allowing connection to sensors and pre-actuators by means of the TELEFAST 2 prewiring system
The following illustration shows an analog input/output module with one 40-pin connector:
The following illustration shows an analog input/output module with 20-pin terminal block: