Basic Information It is made of flame-retardant industrial plastic material, with a compact structure that is suitable for the AC500 series CPU installation slot. It is equipped with a metal conductive spring to ensure stable battery contact and has a reverse installation prevention design to avoid incorrect battery polarity connection. The protection level is IP20, capable of withstanding industrial environmental temperature fluctuations. It complies with CE and RoHS environmental certifications and is specifically designed for the AC500 series PLC power-off data preservation. Function and Position It is used for installing the backup lithium battery for the AC500 series CPU. When the PLC is powered off, it provides a backup power source for the real-time clock and program data, preventing data loss and clock stoppage. It is directly installed on the side of the CPU module, without the need for additional wiring. It is easy to disassemble and assemble and is a key component for ensuring the security of PLC data and the accuracy of the clock in protecting the safety of industrial control scenarios with long-term operation. Core Performance Parameters The compatible battery model is CR2032 button battery, with a working voltage of 3V, a contact resistance of less than 0.5Ω, a working temperature range of -25℃ to +60℃, a battery replacement cycle of approximately 5 years, a plug-in and unplugging life of ≥500 times, and an insulation strength of 500V AC/1 minute without breakdown. General Compatible Accessories It is compatible with the entire series of AC500 CPU modules, including PM567, PM570, PM573, PM575, PM577, PM582, PM585-ETH, PM590-ETH, etc. It can be used in combination with the original CR2032 backup lithium battery. Applicable Equipment Domains It is widely used in industrial automation production lines, automotive manufacturing, electronic processing, food packaging, water treatment, HVAC, metallurgy and light industry, wind power control, and various industrial automation projects equipped with ABB AC500 control systems, especially suitable for equipment scenarios that require long-term power-off data preservation. Brand ABB, a core brand in the industrial automation field, focuses on the research and development and manufacturing of PLCs and control systems. Model number Full model number 1SAP190600R0001, product abbreviation PS551-MC Category The AC500 series PLC motion control software library license belongs to the PLCopen standard function block software package. Alternative names AC500 motion control library - ABB motion control license software - PS551-MC multi-user license package