ABB DI524, article 1SAP240000R0001, concentrates 32 digital inputs into one S500 station position. Its 24 V DC channels support configurable input delay, individual signal indication and a fast counter on I24 and I25 for applications that need both high point density and pulse acquisition.

Manufacturer	ABB
Article Number	1SAP240000R0001
Product Family	AC500 S500
Input Count	32 digital inputs
Nominal Input Voltage	24 V DC
Input Type	EN 61131-2 Type 1
Typical Input Delay	8 ms, configurable from 0.1 to 32 ms
Typical Input Current	5 mA at 24 V
Fast-Counter Inputs	I24 and I25
Maximum Counter Frequency	50 kHz
Process Supply	24 V DC
Isolation	Module-wise galvanic isolation
Terminal Units	TU515 or TU516
I/O-Bus Current	Approximately 2 mA
Product Lifecycle	Active

• Acquires 32 discrete field signals in a single S500 module position.
• Lets the controller project adjust input filtering from 0.1 to 32 ms.
• Provides one yellow status LED for every input plus supply and error indication.
• Supports a fast counter on I24 and I25 when the connected I/O-bus master supports that function.
• Separates the field input circuitry from the station logic through module-wise galvanic isolation.

• High-density sensor collection in packaging, assembly and material-handling machines.
• Pulse acquisition through the documented I24 and I25 fast-counter inputs.
• Control-panel expansion where TU515 or TU516 termination is already used.
• Production equipment requiring adjustable digital-input filtering.
• Standard-version spare planning for active AC500 S500 installations.

• ABB lists article 1SAP240000R0001 in the Active lifecycle phase.
• Keep the standard DI524 separate from the DI524-XC environmental article.
• Back up the input mapping, delay settings and counter configuration before replacement.
• Inspect the TU515 or TU516 terminal unit and process-supply wiring before fitting new electronics.
• Verify all 32 signals and the counter path during recommissioning.

How many inputs are provided by ABB DI524?

DI524 provides 32 digital inputs for 24 V DC field signals.

Which DI524 inputs support the fast counter?

ABB assigns I24 and I25 to the module fast-counter function.

What is the maximum documented counter frequency?

The official technical data specifies a maximum counting frequency of 50 kHz.

Can the digital-input delay be adjusted?

Yes. The typical 8 ms delay can be configured from 0.1 to 32 ms.

Which terminal units are required?

ABB specifies TU515 or TU516 terminal units for the standard DI524.

Is DI524-XC the same ordering article?

No. DI524-XC is a separate environmental version and must be ordered under its own article number.