TM5C24D18T Modicon TM5 Compact I/O Block 24DI 18DO 24V DC

The TM5C24D18T is a Modicon TM5 compact digital I/O expansion block with 24 digital inputs and 18 transistor outputs.

It combines five TM5 electronic modules into one preassembled unit:

• Two 12-input modules
• Three 6-output modules

The 24 V DC sink inputs are intended for sensors and switching contacts. The 24 V DC source outputs control compatible low-current actuators, relays and indicator devices.

Its main advantage is combining 42 I/O points in one block, reducing the number of separate slices required in centralized machine stations.

Key Features

• 42 digital I/O points
• 24 sink digital inputs
• 18 source transistor outputs
• 0.5 A maximum per output
• 9 A maximum combined load current
• Five internal I/O sections
• Compact preassembled TM5 block
• Individual section configuration

Typical Applications

• Packaging machinery
• Conveyor control
• Assembly equipment
• Centralized sensor groups
• Pneumatic valve control

Five Integrated I/O Sections

The TM5C24D18T contains five internal electronic sections:

SL1

12 Digital Inputs

SL2

12 Digital Inputs

SL3

6 Digital Outputs

SL4

6 Digital Outputs

SL5

6 Digital Outputs

Each section is configured separately in the controller project.

24 Digital Inputs

The input side provides 24 channels for compatible 24 V DC field signals.

Typical devices include:

• Proximity sensors
• Limit switches
• Push buttons
• Relay contacts
• Machine status signals

18 Transistor Outputs

The output side provides 18 protected 24 V DC source outputs.

Typical loads include:

• Interface relays
• Indicator lamps
• Small solenoid valves
• Contactor interface circuits
• Pneumatic valve manifolds

Each output is rated up to 0.5 A. Total connected load current must remain within the 9 A block limit.

TM5C24D18T vs TM5SDO16T

TM5C24D18T

24 inputs and 18 outputs

42 total I/O points

Preassembled compact block

Suitable for centralized mixed I/O

TM5SDO16T

16 digital outputs only

No digital inputs

Single electronic output module

Suitable for output-only expansion

TM5C24D18T vs TM5C24D12R

TM5C24D18T

18 transistor outputs

Fast 24 V DC switching

No mechanical contact wear

TM5C24D12R

12 relay outputs

Can switch compatible AC or DC loads

Lower output density

Installation Notes

Before installation:

• Disconnect the TM5 station supply
• Confirm the complete model number
• Verify the 24 V DC power budget
• Calculate total output load current
• Confirm input and output assignments
• Check controller configuration
• Test each internal I/O section separately

FAQ

Q1: What is TM5C24D18T?

A1: It is a compact Modicon TM5 expansion block with 24 digital inputs and 18 transistor outputs.

Q2: How many total I/O points does it provide?

A2: It provides 42 points in total.

Q3: What type of inputs does it use?

A3: It uses 24 V DC sink digital inputs.

Q4: What type of outputs does it use?

A4: It uses 24 V DC source transistor outputs.

Q5: What is the maximum output current?

A5: Each output supports up to 0.5 A, with a maximum combined load current of 9 A.

Q6: Is it a single output module?

A6: No. It is a preassembled mixed I/O block containing two input sections and three output sections.

Q7: What distinguishes it from TM5SDO16T?

A7: TM5C24D18T provides both 24 inputs and 18 outputs, while TM5SDO16T provides only 16 outputs.