This analog output module delivers precise 4-20 mA signals to control field actuators and instrumentation. It converts digital commands from the controller into smooth analog outputs. We designed the Schneider ASB872011 for the Advantys STB distributed I/O platform. This module provides exceptional signal accuracy and stability for demanding process applications. It ensures reliable control of valves, positioners, and variable speed drives. Therefore, your processes achieve optimal performance through accurate analog modulation.
Physical Configuration and Mounting Specifications
The Schneider ASB872011 features a compact modular housing for DIN-rail installation. Its dimensions measure 112.0 mm in height, 65.0 mm in width, and 85.0 mm in depth. The module weighs approximately 0.2 kilograms for straightforward handling during installation. This unit clips securely onto standard 35 mm DIN-rail profiles. It connects to field wiring via removable screw-type terminal blocks. The module provides LED indicators for power, communication, and channel status.
Output Specifications and Performance Characteristics
This analog output module offers 2 isolated analog output channels. Each channel provides 4-20 mA current signals with 16-bit resolution. The Schneider ASB872011 delivers exceptional accuracy with ±0.1% of full scale. It features output loop supply voltage for powering 2-wire transmitters. The module includes short-circuit and open-loop protection on each channel. It offers programmable fault and fallback settings for fail-safe operation. Consequently, this ensures reliable analog control with precise signal generation.
Detailed Technical Specifications and Interface Details
We present the module’s comprehensive technical parameters and operational capabilities below.
| Specification | Detail |
|---|---|
| Part Number | Schneider ASB872011 |
| Product Category | Analog Output Module |
| Dimensions (H x W x D) | 112.0 mm x 65.0 mm x 85.0 mm |
| Module Weight | Approximately 0.2 kg (0.44 lbs) |
| Number of Output Channels | 2 isolated analog outputs |
| Output Signal Type | 4-20 mA (current loop) |
| Output Voltage Range | 10 VDC to 28 VDC |
| Resolution | 16-bit (15 µA per LSB typical) |
| Accuracy | ±0.1% of full scale at 25°C |
| Temperature Drift | ±50 ppm/°C maximum |
| Loop Supply Voltage | 15 VDC per channel |
| Load Impedance | 0 Ω to 600 Ω |
| Update Time | 1 ms typical |
| Settling Time | 2 ms (to 99% of final value) |
| Protection Features | Short-circuit, open-loop detection |
| Fault Mode | Programmable fallback value (0 to 20 mA) |
| Diagnostic Feedback | Open-load detection, short-circuit alarm |
| Field Wiring Connector | Removable screw terminal block |
| Wire Gauge Capacity | 0.5 to 2.5 mm² (AWG 20 to AWG 14) |
| Bus Interface | Advantys STB (ISOL bus) |
| Diagnostic Indicators | Green (run/comm), red (fault), yellow (channel) |
| Power Supply Voltage | 24 VDC (field power) |
| Power Consumption | 1.5 W (logic) + output load |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Ingress Protection | IP20 |
| Compliance | CE, UL, CSA, RoHS |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 112 × 65 × 85 mm |
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