Title: Schneider 140CPU21304C Conformal Coated Modicon Quantum PLC Processor Module,PLC Module Inquiry Product

Three Keywords: conformal coated quantum cpu module,floating point plc processor,modicon quantum cpu

Product Details

The Schneider 140CPU21304C conformal coated processor module is a high-performance core control unit for Modicon Quantum PLC systems deployed in humid, dusty and corrosive industrial environments. This modicon quantum cpu module adopts a 20MHz processor integrated with floating-point coprocessor, equipped with 768kB battery-backed RAM and supports PCMCIA memory card for program and data storage expansion. The PCB circuit board is protected by conformal coating, which effectively shields internal electronic components from moisture, dust and corrosive gas, maintaining stable long-term operation in chemical, offshore and other harsh plant sites. It supports LL984 ladder logic and IEC61131-3 standard programming languages. The scan time for 1K boolean LL984 instructions ranges from 0.3ms to 1.4ms, and the built-in math coprocessor accelerates floating-point operation and PID closed-loop control for complex process control applications. This CPU module integrates two communication ports: one RS232 Modbus serial port and one Modbus Plus port, supporting data exchange with local I/O modules, remote distributed I/O, HMI touch screens and other field automation equipment. It can support up to 64 local I/O words, 64 remote I/O words and 30/32 distributed I/O words, supporting up to 31 remote drops and 63 distributed drops. A fixed 250ms hardware watchdog timer is configured to detect abnormal program execution and trigger safety protection actions automatically. The onboard lithium battery retains RAM data and real-time clock information, with clock drift of ±8 seconds per day within 0~60℃ operating temperature range. Programming can be completed via Concept software platform. It can be directly plugged into Quantum backplane rack and matched with full series of Quantum power supply, I/O and communication modules to build complete distributed control systems. This original product has been discontinued, widely stocked as spare replacement parts for maintenance and upgrade of legacy industrial automation systems. It is widely used in power, petrochemical, natural gas pipeline, metallurgy, water treatment and manufacturing plants as the core controller for Modicon Quantum automation racks requiring floating-point and PID control under harsh industrial environments.

Brand: Schneider Electric

Model: 140CPU21304C

Series: Modicon Quantum

Type: Conformal Coated PLC Processor Module

Processor: 20MHz with built-in floating-point coprocessor

Memory: 768kB battery-backed RAM, support PCMCIA card expansion

Communication: 1 x RS232 Modbus,1 x Modbus Plus

Watchdog: 250ms hardware watchdog

Program Software: Concept

Feature: Conformal coating, built-in floating-point coprocessor for PID calculation

Mounting: Plug into Modicon Quantum rack backplane

Operating Temperature: 0℃ ~ 60℃

Weight: 0.7kg

Status: Discontinued original spare part

Certification: CE

Application: Core control processor for Modicon Quantum PLC racks with floating-point and PID control in harsh industrial sites