Product Details

The Schneider 140CPU67261C conformal coated Unity hot standby processor module is a high-capacity redundant dual-slot core control unit of Modicon Quantum PLC automation platform, equipped with single-mode fiber hot standby interface for long-distance redundant synchronization, designed for large and complex industrial process control systems under humid, dusty and corrosive working environments that require bumpless switchover and uninterrupted operation. This modicon quantum cpu module adopts a 32-bit RISC processor running at 266MHz clock frequency, equipped with 3072kB built-in RAM, and supports memory expansion via PCMCIA card up to 7168kB program memory and 8MB file storage. The PCB circuit board is coated with Humiseal 1A33 conformal coating, which can effectively protect internal electronic components against moisture, dust and corrosive gas, ensuring stable continuous operation in chemical plants, offshore platforms and other severe industrial sites. It runs Unity operating system and fully supports IEC61131-3 standard programming languages, programmed via Unity Pro / EcoStruxure Control Expert software. The module integrates dedicated single-mode fiber optic hot standby port for long-distance real-time data synchronization between primary and standby CPUs. Once the master CPU fails, the standby unit can automatically complete bumpless switchover without interrupting production process. This CPU also carries one 10/100Mbps Ethernet port, one Modbus serial port and one Modbus Plus communication port, supporting data exchange with local I/O modules, S908 remote I/O stations, distributed I/O stations, HMI touch screens and other field automation equipment. It can support up to 2 local racks, maximum 31 S908 remote I/O stations and 63 distributed I/O stations over Modbus Plus network. The onboard Ethernet port supports TCP/IP communication, web diagnostic function and Ethernet remote I/O scanning. The module comes with a 2×16 LCD backlight display and key switch for memory protection, supporting high-speed interrupt input, event time stamping and high-precision counter functions. A hardware watchdog timer continuously monitors program execution status and triggers safety protection actions automatically once abnormal operation occurs. It occupies two adjacent slots on Quantum backplane rack and must be paired with another identical 140CPU67261C module to establish hot standby redundant architecture. This original Schneider product was discontinued on July 9,2018 and end-of-service on Dec 31,2027, widely stocked as spare replacement parts for maintenance and upgrade of legacy long-distance redundant industrial automation systems. It is widely deployed in power, petrochemical, natural gas pipeline, metallurgy, water treatment and manufacturing plants as redundant core controller for large complex Modicon Quantum automation racks under harsh industrial environments.

Brand: Schneider Electric

Model: 140CPU67261C

Series: Modicon Quantum

Type: Conformal Coated Unity Hot Standby PLC Processor Module

Processor: 32-bit RISC, 266MHz

Memory: 3072kB internal RAM, expandable via PCMCIA card

Communication: 1 x 10/100Mbps Ethernet,1 x Modbus,1 x Modbus Plus, single-mode fiber hot standby port

Program Software: Unity Pro / EcoStruxure Control Expert

Feature: Humiseal 1A33 conformal coating, dual-slot processor, large built-in memory, single-mode fiber hot standby link, bumpless redundant switchover, LCD display

Mounting: Occupies 2 slots on Modicon Quantum rack backplane

Operating Temperature: 0℃ ~ 60℃

Weight: 0.85kg

Status: Discontinued original spare part,end-of-service 2027

Certification: CE,FM Class 1 Division 2,cUL,ATEX

Application: Redundant hot standby core control processor for large complex Modicon Quantum PLC racks in harsh industrial sites