TM5ACBM11 Modicon TM5 White Bus Base for 24V DC I/O Modules

The TM5ACBM11 is a white Modicon TM5 bus base for compatible 24 V DC electronic modules.

It mechanically supports the electronic module and terminal block while carrying TM5 bus power, communication data and the 24 V DC I/O power segment to the next slice.

Its main difference from power-distribution bases is the pass-through design. TM5ACBM11 does not interrupt or create a new I/O power segment.

It is a mounting and bus-connection component, not a standalone 24 V DC power supply.

Key Features

• Standard white TM5 bus base
• 24 V DC I/O power pass-through
• TM5 bus power and data continuity
• DIN-rail installation
• No address-setting switches
• Used with standard 24 V DC modules
• Part of a three-component TM5 slice

Typical Applications

• Digital input slices
• Digital output slices
• Analog I/O slices
• Temperature input modules
• Expert counter modules

24 V DC Power Pass-Through

TM5ACBM11 carries the existing 24 V DC I/O power segment from the module on its left to the module on its right.

It does not:

• Generate 24 V DC
• Regulate voltage
• Add bus-current capacity
• Start an isolated power segment
• Provide fuse protection

A compatible power distribution module is required when a new or additional power segment must be created.

TM5 Bus Connections

The base carries three system connections:

TM5 Data Bus

Transfers communication data between adjacent TM5 slices.

TM5 Power Bus

Transfers internal electronic-module power.

24 V DC I/O Power Segment

Transfers field-side supply for compatible I/O modules.

Compatible Electronic Modules

TM5ACBM11 is commonly used with compatible white 24 V DC modules, including selected:

• Digital input modules
• Digital output modules
• Mixed digital I/O modules
• Analog input modules
• Analog output modules
• Temperature modules
• Expert counter modules

Compatibility must be confirmed from the exact module assembly table.

TM5ACBM11 vs TM5ACBM15

TM5ACBM11

White bus base

24 V DC I/O segment pass-through

No address-setting switches

TM5ACBM15

White bus base

24 V DC I/O segment pass-through

Includes address-setting switches

TM5ACBM15 is selected only when manual address setting is required.

TM5ACBM11 vs TM5ACBM01R

TM5ACBM11

White coding

Power segment passes through

Used with standard 24 V DC I/O modules

TM5ACBM01R

Grey coding

Power segment isolated on the left

Used with PDM and receiver modules

These two bases have different electrical and mechanical functions and are not interchangeable.

TM5ACBM11 vs TM5ACBM12

TM5ACBM11

White base for standard 24 V DC modules.

TM5ACBM12

Black base for compatible AC electronic modules.

Color coding must match the approved electronic module and terminal block.

Complete TM5 Slice

A complete standard TM5 slice normally includes:

• TM5ACBM11 bus base
• Compatible electronic module
• Compatible terminal block

The bus base alone does not provide an operational I/O channel.

Installation Notes

Before installation:

• Disconnect TM5 and field power
• Confirm the electronic module reference
• Match white slice components
• Verify the terminal-block type
• Check the I/O power budget
• Mount the base securely on the DIN rail
• Do not combine different component colors
• Restore power only after checking the complete assembly

FAQ

Q1: What is TM5ACBM11?

A1: It is a white Modicon TM5 bus base for compatible standard 24 V DC electronic modules.

Q2: Is it a 24 V DC power supply?

A2: No. It passes the existing I/O power segment through the slice but does not generate power.

Q3: Does it isolate the incoming I/O power segment?

A3: No. The 24 V DC I/O power segment passes through from left to right.

Q4: Does it include address-setting switches?

A4: No. TM5ACBM15 is the corresponding white base with address setting.

Q5: Can it be used with TM5SPS2?

A5: No. TM5SPS2 normally uses a grey left-isolated base such as TM5ACBM01R or TM5ACBM05R.

Q6: Can it be used with AC modules?

A6: No. Compatible AC electronic modules use the black TM5ACBM12 base.

Q7: Are the electronic module and terminal block included?

A7: TM5ACBM11 is the bus base only unless the seller specifically provides a complete assembled slice.