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Description
The Schneider AS-B872-100 is a high-performance analog output module from the 800 Series, engineered for precise control in industrial automation environments. This module provides four independent output channels, specifically designed to support the standard 4 to 20 mA current loop range. With a robust design capable of handling a maximum loop supply voltage of 60 VDC, it integrates seamlessly into a wide variety of process control architectures.
The module utilizes 12-bit resolution to ensure high-fidelity signal output, maintaining a 0.1% full-scale accuracy rating at 25 degC. Its linearity is maintained at ± 1 LSB across an operating temperature range of 0 to 60 degC. Designed for high-speed applications, the AS-B872-100 achieves update times of less than 1 millisecond across all four channels, ensuring minimal latency in critical control loops.
Features
- Four independent analog output channels.
- Standard 4 to 20 mA output range.
- 12-bit resolution for precise signal generation.
- High-speed processing with <1 ms update time for all channels.
- Compact single-slot module design for efficient rack utilization.
- Low power consumption profile for improved thermal management.
Technical Specifications
| Manufacturer |
Schneider Electric |
| Product Line |
800 Series |
| Part Number |
AS-B872-100 |
| Channels |
4 |
| Operating Range |
4 to 20 mA |
| Max Loop Supply Voltage |
60 VDC |
| Resolution |
12 bit |
| Accuracy |
0.1% of full scale at 25 degC |
| Linearity |
0 to 60 degC, ± 1 LSB |
| Update Time |
<1 ms (all channels) |
| Power Requirements |
5 V @ 475 mA, +4.3 V @ 5 mA, -5 V @ 0 mA |
Installation Guidelines
- Ensure the system power is disconnected before inserting or removing the module from the rack.
- Handle the module using proper ESD (Electrostatic Discharge) precautions to prevent damage to internal circuitry.
- Ensure the module is fully seated in the designated slot to guarantee proper backplane connection.
- Route signal wiring away from high-voltage cables and high-EMI sources to maintain signal integrity.
- Verify that the ambient operating temperature remains within the 0 to 60 degC range and that ventilation is adequate for the rack assembly.
FAQ
What is the primary function of the AS-B872-100?
This is an analog output module used to convert digital control signals from the PLC into 4-20 mA current signals for field devices like actuators, valves, or positioners.
Does this module require external power for the loops?
The module supports a loop supply voltage of up to 60 VDC. Ensure your field loop power supply is compatible with this specification.
