User Manual

Automation stations

Data storage

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Downloading the D-MAP program

1. The D-MAP program (code and data blocks) is copied to the flash memory (1a). A copy of the data

blocks is created in the RAM (1b) for later modification by the D MAP program.

Read/Write via communication system

2. When writing data, the data is written to the RAM (2a) and the flash memory (2b). Read access to the

data is via the RAM (2c).

Processing the D-MAP program

3. The D-MAP program code is read from the flash memory (3a). The program data is modified in the RAM

(3b). Non-volatile process variables (e.g., adaptive control parameters, hours run, etc.) are written by the

function blocks into the flash memory (3c) at regular intervals (once per day) or saved in the battery

supported RAM.

Starting the automation station

4. At each restart of the automation station, a copy of the data (data blocks) is created in the RAM (4) from

the flash memory (including all communication and D-MAP changes).

PXM20

XWP

D-MAP

Application

Communication

RAMFlash