Setting the parameters of the CPU 312C

The retention behavior of the CPU 312C determines whether or not the values of internal memory bits are retained after a power failure or memory reset on the CPU 312C.

You can use the retention behavior to ensure that the motor does not start up in an uncontrolled manner after a power failure.1. Set the amount of retentive bit memory to “0”.

Setting the parameters of the CPU 312C

You can set numerous parameters for each of the modules. As an example, we will modify the retention behavior of the CPU 312C.

1. Set the amount of retentive bit memory to “0”.

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SIMATIC S7-300 Getting Started for First Time Users Getting Started, 04/2007, 6ZB5310-0NC02-0BA0

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Siemens S7-300 manual Setting the parameters of the CPU 312C, Set the amount of retentive bit memory to “0”