AS04AD-A 4-Channel Analog Input Module 16-Bit AS Series | Delta

The Original New Delta AS04AD-A is a 4-channel analog input module from the Delta AS Series, designed for high-precision signal acquisition in industrial automation and process control systems. Each channel is independently configurable for voltage (0–10 V, 0–5 V, 1–5 V, ±5 V, ±10 V) or current (0–20 mA, 4–20 mA, ±20 mA) signals, with a hardware resolution of 16 bits and a conversion speed of 2 ms per channel. The module connects seamlessly to Delta AS Series PLCs, including the AS300 and AS500E series, via the backplane bus. Its compact, DIN-rail-mountable design with pluggable screw terminals simplifies wiring and accelerates installation in space-constrained control cabinets.

Core Engineering Highlights:
4 independently configurable analog input channels | 16-bit hardware resolution | Voltage and current input ranges | 2 ms per channel conversion speed | ±0.2% overall accuracy | Pluggable screw terminal connections | DIN rail mountable | 24 V DC power supply | IP20 protection | Operating temperature: -20°C to +60°C

Key Features:

• Original New Delta AS04AD-A module

• 4 analog input channels, each independently configurable for voltage or current

• Voltage input ranges: 0–10 V, 0–5 V, 1–5 V, ±5 V, ±10 V

• Current input ranges: 0–20 mA, 4–20 mA, ±20 mA

• 16-bit hardware resolution for precise signal acquisition

• 2 ms per channel conversion speed

• ±0.2% overall accuracy

• Pluggable screw terminal connections for secure field wiring

• DIN rail mounting for space-efficient panel installation

• IP20 protection rating for control cabinet environments

• LED status indicators for module and channel monitoring

• Suitable for 4-wire voltage and current input wiring

Applications:

• Process variable monitoring (pressure, flow, level, temperature)

• Machine automation and high-precision data acquisition

• Packaging machinery and material handling systems

• Factory automation and process control

• Analog signal conversion for sensors and transmitters

• Applications requiring multi-channel analog input in AS Series PLC systems

Technical Specifications:

System Compatibility:

• Compatible with Delta AS Series PLCs, including AS300 and AS500E series. PLC model and firmware compatibility should be verified before installation.

• Connects to the PLC via the AS Series backplane bus

• Programmed with Delta's DIADesigner+ software for hardware configuration and parameter setting

• Can be combined with other AS Series expansion modules including digital I/O, analog output, temperature, and communication modules

Related Products:

• AS06XA-A – 4 analog inputs + 2 analog outputs, AS Series

• AS04DA-A – 4-channel analog output module, AS Series

• AS04TC-A – 4-channel thermocouple input module, AS Series

• AS04RTD-A – 4-channel RTD input module, AS Series

• AS02LC-A – 2-channel load cell input module, AS Series

• AS16AP11T – 16-point digital input module, AS Series

• AS228T-A – AS300 series CPU module with Ethernet

• DIADesigner+ – Configuration software for Delta AS Series

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Delta and AS Series are trademarks of Delta Electronics, Inc.