Siemens 545-1105 Logic Controller Module

Siemens 545-1105 Logic Controller Module   

Product Details Introduction

Siemens 545-1105 Logic Controller Module (15 Features)

Belonging to the Siemens SIMATIC 505 (formerly TI 505) series 545 CPU logic controller, it is designed for small and medium-sized process and discrete control scenarios.

Equipped with a 12MHz 68020 processor, the computing performance is stable and meets the real-time control needs of industry.

User program memory 96KB, onboard EEPROM storage, data not lost during power failure.

Boolean operation scanning speed of 0.33ms/K, fast response, suitable for high real-time control tasks.

Supports up to 1024 points of digital I/O and 1024 points of analog I/O, meeting the expansion needs of small and medium-sized systems.

Built in 16 standard PID circuits and 32 analog alarms, supporting closed-loop process control.

Provide 4096 control relays and 1024 timers/counters, with sufficient logic programming resources.

Supports integer and floating-point operations, capable of handling complex mathematical and process control algorithms.

Dual serial communication: 1 channel RS-232, 1 channel RS-232/422/485, with a maximum baud rate of 38400bps.

Supports multi protocol communication such as TIWAY I, Modbus, TCP/IP, PROFIBUS-FMS, etc.

PROFIBUS-DP expansion card can be optionally selected, supporting up to 32 DP slave stations for remote I/O expansion.

The front panel can be equipped with a replaceable lithium battery backup, which can maintain the program and clock when powered off. The battery life at room temperature is about 3 years.

The operating system is fixed in Flash EEPROM, supports firmware upgrades, and is easy to maintain.

The backplane bus is directly powered, with standard Eurocard size and compatibility with the entire 505 series rack.

The product has been discontinued, and the market mainly consists of second-hand, refurbished, and original spare parts, specifically designed for repairing and replacing old 545 systems.

In summary, Siemens 545-1105 is a small and medium-sized PLC CPU with balanced performance and complete functions. With stable computing power, rich I/O and communication interfaces, it has become the core logic control unit of the old SIMATIC 505 control system, widely adapting to the maintenance and upgrade needs of traditional manufacturing, chemical and other industrial scenarios.

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