S7-1500 CPU with complete retentive data, shortening time required to restart the system
For fast restart of the process after a power failure, the S7-1500 can now be configured to retain all of the dynamic system data. The PS 60W 24/48/60V DC HF system power supply with buffer supports the power supply to the backplane of the S7-1500 CPU during power failures just long enough to make all of the CPU data retentive.
This module – which has no battery and therefore requires no maintenance – provides a power buffer so the CPU has time to write current information into memory. This enables the CPU to store the entire work memory (data) to non-volatile memory so the program will restart in the same operating status. The power supply requires a CPU with firmware from version 2.1 and TIA Portal STEP 7 Professional from V14 SP1 or higher.
Though the module is not an uninterruptible power supply, it brings many of the benefits of a UPS. This reduces the time it takes for machines and plants to restart because there is no loss of data. This means manufacturing applications that utilized a SIMATIC S7-400 to date with 100% retentive data can be switched to the SIMATIC S7-1500 and have the same retentive data characteristics. Additionally, this system power supply increases the power on the backplane bus from the CPU or Interface module (IM 155-5) to supply power to all connected expansion I/O modules.
The PS 60W 24/48/60V DC HF simplifies handling of large amounts of data, for example, setting and parameter assignment for retaining data after a power shutdown by allowing selection to retain up to 100% of the operational status data memory in the S7-1500 CPU.
The 105mm wide module in the same form factor as the S7-1500 occupies the slot to the left of the CPU or remote interface module. It supports all types of I/O modules in the rack including standard, Safety rated, and motion /positioning modules. The system recovery is tightly coupled with the retained prior system operating data to provide improved diagnostics information to further reduce downtime and simplify maintenance.
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