Schneider ASBDAU204 Analog Output | 4 Channels, 0-10V/4-20mA

Technical Specifications

Parameter	Value
Brand	Schneider
Model	ASBDAU204
Category	4-Channel Analog Output
Weight	0.38 lbs (0.17 kg)
Dimensions	3.9 x 2.8 x 2.5 inches
Component Count	72 discrete components
Output Channels	4 analog outputs
Output Signal Range	0-10V DC or 4-20 mA
Resolution	12 bits (2.44 mV or 3.9 µA)
Update Rate	2 ms per channel
Accuracy	±0.5% of full scale
Load Impedance	1kΩ min (voltage), 500Ω max (current)
Isolation	500V AC channel to bus
Operating Voltage	24V DC from backplane
Current Draw	120 mA at 24V DC
Energy Storage	4 x 47µF capacitors
Terminal Type	Removable screw block

Physical Construction and Channel Layout

This ASBDAU204 analog output module measures 3.9 inches in height. Its width reaches 2.8 inches with a depth of 2.5 inches. The total weight comes to approximately 0.38 pounds. Manufacturers placed 72 discrete components on this compact PCB. These components include DACs, op-amps, resistors, and protection diodes. The small size fits into dense PLC rack configurations.

Output Configurations and Signal Ranges

ASBDAU204 provides four independent analog output channels for field devices. Each channel outputs either 0-10V DC or 4-20 mA current. A configuration switch selects the signal type per channel pair. The voltage mode requires a minimum load impedance of 1kΩ. Current mode drives loads up to 500Ω maximum resistance. Therefore, this module connects to most actuators and drives directly.

Resolution and Response Performance

The analog output module delivers 12-bit resolution across all channels. Voltage outputs step in 2.44 millivolt increments for smooth control. Current outputs change in 3.9 microamp steps for precision regulation. Each channel updates its value every 2 milliseconds. Total scan time for all four channels reaches 8 milliseconds. Accuracy stays within ±0.5% of the full scale range. Consequently, the ASBDAU204 provides reliable analog control for motion or process loops.

Power Requirements and Energy Storage

ASBDAU204 draws 120 milliamps from the 24V DC backplane supply. Four 47µF capacitors provide local energy storage on the board. These capacitors maintain output stability during transient loads. Optical isolation separates the analog outputs from the logic bus. This isolation withstands 500V AC for safe field wiring. A removable screw terminal block simplifies wire replacement. The module operates reliably from 0°C to 55°C ambient.