ABB DA502, article 1SAP250800R0001, combines several signal types in one S500 module. It provides 16 digital outputs, eight configurable 24 V DC channels, four analog inputs and two analog outputs, allowing a compact station to handle discrete actuation, field status and analog process signals.

Manufacturer	ABB
Article Number	1SAP250800R0001
Product Family	AC500 S500
Digital Outputs	16 channels, DO0–DO15
Configurable DC Channels	8 inputs/outputs, DC16–DC23
DC Channel Rating	24 V DC, up to 0.5 A per output
Analog Inputs	4 voltage, current or resistance-temperature channels
Analog Outputs	2 voltage or current channels
Analog Resolution	12 bits including sign
Supported Voltage Range	0–10 V and ±10 V
Supported Current Range	0–20 mA and 4–20 mA
Supported RTDs	Pt100, Pt1000, Ni100 and Ni1000
Isolation	Module-wise galvanic isolation
Terminal Units	TU515 or TU516
Maximum Unloaded Dissipation	6 W
Product Lifecycle	Active

• Consolidates discrete and analog field connections in one AC500 S500 station position.
• Allows eight DC points to be configured as inputs or transistor outputs for the application.
• Measures voltage, current and supported resistance-temperature sensor signals on the four analog inputs.
• Generates voltage or current commands through two analog outputs.
• Provides a fast-counter function using documented configurable channels.
• Uses front LEDs for digital, analog, supply and error diagnostics.

• Installs on ABB TU515 or TU516 terminal units within a supported AC500 S500 I/O station.
• Requires a 24 V DC process supply with protection sized according to ABB installation guidance.
• Analog wiring, shielding and channel configuration must match the selected voltage, current or RTD mode.
• The standard DA502 and environmental XC variant are separate articles and must not be combined in one stock reference.
• Fast-counter inputs and outputs must use the channel assignments defined by ABB for DA502.

• Order by article 1SAP250800R0001 and confirm that the installed unit is the standard DA502 version.
• Record every DC channel direction and analog signal mode before disconnecting field wiring.
• Preserve scaling, diagnostic and fast-counter parameters in the controller project.
• Inspect the TU515 or TU516 terminal unit and field conductors before fitting the replacement electronics.
• Verify discrete switching, each analog range and counter behavior during recommissioning.

How many fixed digital outputs does DA502 provide?

DA502 provides 16 digital outputs identified as DO0 through DO15.

Can the eight DC channels be used as both inputs and outputs?

Yes. DC16 through DC23 are configurable 24 V DC input/output channels with output current up to 0.5 A.

Which analog sensor types can DA502 measure?

The official data includes voltage, current and Pt100, Pt1000, Ni100 and Ni1000 resistance-temperature inputs.

Does DA502 include analog outputs?

Yes. It has two 12-bit analog outputs configurable for voltage or current signals.

Which terminal units are specified for DA502?

ABB identifies TU515 and TU516 as the compatible terminal units.

What configuration must be preserved during replacement?

Retain DC point directions, analog ranges and scaling, counter assignments, diagnostics and the controller I/O mapping.