Description

Schneider Electric AS-P890-000R Modicon Analog Input module

Overview

Schneider Electric AS-P890-000R is a high-performance 8-channel analog input module designed by Schneider Electric for its Modicon M340 PLC series. This module is a key interface device for signal acquisition in industrial automation control systems. Its core function is to convert continuous analog signals from on-site sensors (such as temperature, pressure, flow rate, liquid level, etc.) into high-precision digital signals for the CPU of the PLC to perform logical operations and control output.

As an important component of Schneider Modicon’s ecosystem, this module is widely used in industrial Settings where precise monitoring of process variables is required, thanks to its high density, high precision and excellent anti-interference capability.

Core features and advantages

1. High channel density and signal flexibility
8-channel input: Within a compact module size, it provides 8 independent analog input channels, effectively saving control cabinet space and reducing the cost of individual channels.

◦ Signal type is configurable: Each channel can be independently configured through software, supporting multiple industrial standard signals:

▪ Voltage signals: ±10V, 0-10V, 1-5V, etc

▪ Current signal: 0-20mA, 4-20mA (with disconnection detection function)

▪ Resistance signal: Supports Pt100, Pt1000 and other thermal resistance (RTD) temperature sensors

▪ Thermocouple signal: Supports J, K, T, E, N, R, S, and B type thermocouples (corresponding types need to be configured)

2. Outstanding precision and anti-interference ability
◦ High resolution: Equipped with a 16-bit high-precision analog-to-digital converter (ADC), it offers outstanding resolution, ensuring the accuracy and stability of measurement values.

High anti-interference performance: Electrical isolation is adopted between channels and between channels and the bus, and it has excellent electromagnetic compatibility (EMC) performance. It can effectively suppress common common-mode interference and electromagnetic noise on site, ensuring the quality of signal acquisition in harsh industrial environments.

3. Powerful diagnostic and hot-swappable functions
Comprehensive Diagnosis: The module is equipped with a complete hardware self-diagnostic function and can detect the following faults:

▪ Channel disconnection detection (for 4-20mA signals)

▪ Input signal exceeds the limit (overflow or under-range)

AS-P890-000R

Internal error of the module

Any faults will be immediately displayed on the front of the module through LED indicator lights and reported to the CPU via the backplane bus, facilitating quick problem location and elimination.

Support for hot plugging: It allows for the installation or replacement of modules without power interruption to the system, greatly facilitating maintenance and system expansion, and reducing unplanned downtime.

4. Seamless system integration
Designed specifically for the Modicon M340 PLC platform, it can be easily plugged into the local backplane of any M340.

◦ Intuitive graphical configuration through Unity Pro software, setting parameters such as channel type, range, and filtering time is very simple and fast.

Compatible with Schneider Electric’s Transparent Ready architecture, it can be easily integrated into Ethernet-based factory automation systems.

Typical application fields

This module is applicable to almost all industrial automation fields that require the collection of multiple analog signals:
• Process control: Monitoring of process parameters such as pressure, flow rate, liquid level and pH value in the chemical, pharmaceutical and water treatment industries.

• Temperature monitoring: Widely used for temperature collection in ovens, boilers, heat exchangers, production lines and other occasions (via RTD or thermocouples).

• Energy management: Current and voltage signal acquisition in power monitoring systems.

• HVAC system: Signal acquisition for temperature, humidity and pressure sensors in building automation.

• General manufacturing industry: Signal access for various analog sensors in production lines.

Summary of Technical Specifications

• Manufacturer: Schneider Electric

• Product Series: Modicon M340

• Model: AS-P890-000R

• Type: 8-channel analog input module

• Signal types: Voltage, current, RTD, thermocouple (software-configurable)

• Resolution: 16 bits

• Isolation: Isolation between channels and isolation between channels and buses

• Diagnosis: Disconnection detection, over-limit detection

• Hot plugging: Supported

• Configuration software: Schneider Electric Unity Pro

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