TA5101-4DI, article 1SAP187000R0001, is an ABB AC500-eCo option board that adds four 24 V DC digital inputs to a compatible PM50x2 CPU. Inputs I0 through I3 form one group and are galvanically isolated as a module from the option-board internal circuitry.

The board is supplied with a removable five-pin spring and cable-front terminal block at 3.50 mm pitch. It receives internal power through the CPU connection, needs no separate external supply and increases the CPU 24 V DC supply current by 10 mA.

Manufacturer	ABB
Product Family	AC500-eCo V3 option boards
Model	TA5101-4DI
Article Number	1SAP187000R0001
Product Type	Digital input option board
Digital Inputs	4 channels, I0 to I3
Input Voltage	24 V DC
Input Grouping	1 group of 4 inputs
Input Wiring	Source or sink input connection
Galvanic Isolation	Module-wise isolation from internal circuitry
Status Indicators	4 yellow input-state LEDs
Terminal Block	Removable 5-pin spring and cable-front block, included
Terminal Pitch	3.50 mm
External Supply	Not required
Additional CPU Supply Current	10 mA
Compatible CPU Context	AC500-eCo PM50x2 option-board slot
Lifecycle	Active

• Adds four individually monitored 24 V DC digital inputs to the CPU.
• Displays the I0 to I3 signal states through four yellow LEDs.
• Supports source-input or sink-input field wiring.
• Uses group-wise galvanic isolation between the field inputs and internal circuitry.
• Receives its internal operating power directly from the host CPU connection.
• Includes the required removable five-pin spring terminal block.

• Compact AC500-eCo V3 machines needing four additional sensor inputs.
• PM50x2 controllers whose onboard I/O count must be expanded without a separate I/O module.
• Digital signal acquisition from 24 V DC switches, sensors or contacts.
• Panel designs that benefit from removable spring-clamp field terminals.
• Service replacement of the standard-temperature TA5101-4DI option board.

• TA5101-4DI article 1SAP187000R0001 is listed in the Active lifecycle phase.
• Use TA5101-4DIW rather than the standard model only when the documented extended-temperature variant is required.
• Remove all CPU and process power before inserting, removing or rewiring the option board.
• Match the option-board slot, five terminal assignments and source or sink wiring method to the saved project.
• After installation, verify all four input LEDs, PLC diagnostic status and program signal states.

How many input channels does TA5101-4DI add?

It adds four 24 V DC digital inputs, identified as I0 through I3.

Is a separate external supply required for the board?

No. Internal power is supplied through the CPU connection, although field input wiring must follow the documented circuit.

Is the terminal block included?

Yes. The removable five-pin spring and cable-front terminal block is included with the option board.

Can the inputs be wired as source or sink inputs?

Yes. ABB documents both source-input and sink-input connection methods.

What is the difference between TA5101-4DI and TA5101-4DIW?

The W suffix identifies the separate wide-temperature variant; the submitted model is the standard-temperature article.

May the board be removed while the PLC is powered?

No. All supply and process voltage must be switched off before insertion, removal or terminal work.