6GK7343-2AH11-0XA0 Siemens Simatic S7-300 CP 343-2P Communications Processor

Product parameters

Communication parameters: Follow the AS-Interface V3.0 standard and support the M4 main configuration file; It has only one AS interface and no other types of interfaces such as Ethernet or PROFINET. AS an AS interface master station, it can be adapted to up to 62 AS-I slave stations at most. When there are 31 slave stations, the bus cycle time is 5ms, and when there are 62 slave stations, the cycle time is 10ms.

Power supply and power consumption parameters: Powered by the backplane bus, the maximum current consumption of the backplane bus is 200mA, and the maximum current consumption of the AS interface irregular cable at 30V is 100mA. The loss power is 4W and the insulation voltage is 500V.

Environmental parameters: Operating temperature for horizontal busbar installation: 0-60℃; for vertical busbar installation: 0-40℃. Storage and transportation temperature: -40-70℃; In an environment without condensation at 25℃, with a maximum relative air humidity of 95%, the installation height can reach up to 2000m.

Function

AS Interface stable networking: AS an AS-Interface master station, it can efficiently connect S7-300, ET 200M and AS interface devices, and can transmit a large number of digital signals, supporting up to 496 input and 496 output signals, meeting the transmission requirements of multiple slave stations and multiple signals in industrial sites.

Redundancy and safety protection: It has redundancy capabilities. When used in conjunction with the redundant IM153, a redundant communication system can be constructed to enhance communication reliability. With an insulation voltage of 500V and potential isolation characteristics, it can resist electromagnetic interference in industrial environments, ensure stable signal transmission, and reduce the risk of module damage at the same time.

Intuitive status diagnosis: Equipped with multiple LED indicator lights such as RUN, APF, and CER, it can provide real-time feedback on the operation of the module, communication faults, and other statuses. It supports configuration and troubleshooting through the STEP7 software. Staff can quickly locate communication anomalies and other issues, reducing the difficulty of operation and maintenance.

Adaptation to AS-i Power24V: Since firmware version V3.1, it has been adapted to the AS-i Power24V function, eliminating the need for additional dedicated power supply modules. This simplifies the on-site power supply line layout and reduces the complexity and cost of system integration.

Application scenarios

S7-300 /ET 200M Distributed Control System: In scenarios such AS automotive parts production lines and electronic component assembly lines, the S7-300 PLC can be connected to the ET 200M distributed I/O module, and then through the AS interface, it can be linked to on-site sensors, small actuators and other terminal devices to achieve signal aggregation and control instruction issuance at production workstations, ensuring the coordinated operation of each device.

Auxiliary control in process industries: In process industries such as chemical engineering and food processing, it is used to connect temperature, pressure and other detection sensors and small solenoid valves and other actuating elements, concentrating and transmitting scattered field signals to the S7-300 main controller to help achieve precise regulation of the production process and meet the stability requirements of continuous production.

Redundant communication industrial scenarios: In industries with high requirements for communication reliability, such as tobacco and pharmaceuticals, redundant IM153 modules are paired to build a redundant communication architecture, which is applied to the communication of equipment in key production processes, such as the connection of raw material proportioning control equipment in pharmaceutical production lines, to prevent production interruptions or product quality issues caused by communication failures.

Upgrading and transformation of old equipment: For factories that use old terminal equipment with AS interfaces, this module can be directly connected to the S7-300 system. Without replacing a large number of on-site terminal devices, it can achieve the automation communication upgrade of old production lines, reduce transformation costs, and improve the efficiency of production data transmission.

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