Siemens SIMATIC ET 200SP Manual - Halaman 18

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Product overview

2.6 Functions

Reference

You will find additional information on "PROFIBUS DP" in the STEP 7 online help and in the

PROFIBUS with STEP 7 (http://support.automation.siemens.com/WW/view/en/59193579)

function manual.

2.6.4

Memory reset

Apart from a few exceptions, a "memory reset" involves clearing all internal memories and

then reading in the data on the SIMATIC memory card.

Options

You have the following options for resetting the memory of the CPU:

● Using the mode selector

● Using STEP 7

Procedure using the mode selector

To perform a memory reset of the CPU using the mode selector, follow these steps:

1. Set the mode selector to STOP.

Result: The RUN/STOP LED lights up yellow.

2. Set the mode selector to the MRES position. Hold the switch in this position until the

RUN/STOP LED lights up yellow for the 2nd time and remains lit (this takes three

seconds). After this, release the switch.

3. Within the next three seconds, return the mode selector to the MRES position, and then

back to STOP.

Result: The CPU performs a memory reset. During the memory reset, the RUN/STOP LED

flashes yellow. The RUN/STOP LED lights yellow when the CPU has completed the memory

reset.

Procedure using STEP 7

To perform a memory reset of the CPU via STEP 7, follow these steps:

1. Open the "Online tools" task card of the CPU.

2. Click the "MRES" button in the "CPU operator panel" pane.

3. Click "OK" to confirm the security prompt.

Result: The CPU is in STOP mode and performs a memory reset.

CPU 1510SP F-1 PN (6ES7510-1SJ00-0AB0)

Manual, 12/2014, A5E35264953-AA