6ES7340-1CH02-0AE0 Siemens Simatic S7-300 CP 340 Communications Processor

Product parameters

Core specifications: Single-channel PROFIBUS DP Master module, only supporting master mode, compatible with S7-300 PLC (relying on S7-300 backplane bus for power supply and communication)

Communication protocol and rate: Supports PROFIBUS DP protocol (compatible with DP V0 standard), with communication rate ranging from 9.6kbps to 12Mbps

Interface type: 9-pin D-Sub (DB9) male interface, conforming to PROFIBUS EN 50170 standard; Integrated electrical isolation, anti-electromagnetic interference design

Connection capability: A single module can manage up to 125 PROFIBUS DP slave stations, supporting slave station address configuration from 0 to 126

Working power supply: 5V DC, typical power consumption ≤1.2W, peak power consumption ≤1.5W

Operating temperature: 0°C to 60°C, storage temperature: -20 °C to +60°C; Humidity: 5%-95% RH (no condensation)

Complies with CE, UL, CSA and ATEX explosion-proof certifications; Compatible with all series of S7-300 cpus

Software support: It is necessary to cooperate with the Step7 V5.x programming software for parameter configuration and program writing. It supports DP communication control through function blocks

Function

PROFIBUS DP master station centralized control: As the core master station of the DP network, it can actively initiate cyclic communication with slave stations, centrally collect on-site data from distributed I/O modules and sensors, and issue control instructions to slave stations such as frequency converters and actuators, achieving coordinated operation of multiple devices.

High-stability data transmission: Integrated electrical isolation and EMC filter circuits to resist electromagnetic interference generated by motors, frequency converters and other equipment in industrial sites, supporting data verification mechanisms to reduce transmission error codes; The communication rate can be flexibly adjusted according to the on-site distance and the number of devices.

Slave station management and Diagnosis: Supports slave station address allocation and communication parameter synchronization, and has the functions of online status monitoring, offline alarm, and fault information reporting of slave stations. The communication status of slave stations can be viewed online through the Step7 software to quickly locate communication faults.

Flexible adaptation and expansion: Seamlessly compatible with the backplane bus of S7-300 PLC, and can be mixed and installed with digital I/O, analog I/O and other modules. A single PLC can be expanded with multiple CP 340 modules to build a multi-DP master network or redundant communication architecture.

DP V0 basic function support: Focusing on real-time cyclic data transmission, it meets the rapid response requirements of industrial sites and is compatible with most conventional distributed control scenarios.

Application scenarios

This module is mainly used for the construction of the master station network in industrial distributed control systems, and is compatible with various scenarios that require centralized management of decentralized devices

Automotive parts manufacturing: Distributed control of automotive seat and instrument panel production lines, serving as the DP master station of the S7-300 PLC, connected to the ET200M distributed I/O module, servo driver, and welding robot slave station, to achieve synchronous production rhythm and equipment linkage control.

In the chemical and water treatment industry: The public utility systems of chemical industrial parks and the aeration tank/sedimentation tank control systems of sewage treatment plants are connected to on-site pressure/flow sensors, valve positioners, and pump set frequency converters through DP networks to achieve remote data collection and equipment start-stop control.

Power auxiliary system: Control network for desulfurization and denitrification systems in thermal power plants and cooling systems in substations, centrally managing distributed I/O slave stations and actuators (controlling valve opening degrees), uploading data to the central monitoring platform, and receiving remote control instructions.

In the building materials and light industry: Electrical control systems for tile production lines and papermaking production lines, connecting sensors in the batching system, frequency converters for conveyor belts, and temperature control modules for drying equipment, build a DP master station network to achieve automated control and parameter adjustment of the production process.

General mechanical automation: Centralized control of packaging machinery and assembly line equipment, integrating multiple distributed slave stations as the master station to achieve coordinated actions of equipment and enhance the flexibility and maintainability of the production line.

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