Data Organization; Interface To The Control System; Testing And Monitoring The User Program - Siemens SINUMERIK 802S Technical Manual

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4.3.8

Data organization

4.3.9

Interface to the control system

4.3.10

Testing and monitoring the user program

4-28
The data can be divided into three areas:
non-retentive data
z
retentive data
z
machine data for the PLC (All these machine data are active after
z
POWER ON.)
Most data, such as process map, timers and counters, are non-retentive data
and deleted with each power-up.
The user has a certain area available for the retentive data (data range
14000000 -140000xx ). All data that are wished to remain their validity even
after POWER ON can be stored in this area.
The user can use the PLC MD (see user interface) to load his program with
default data or to parameterize various program sections.
This interface can be selected on the operator panel using the softkeys
Diagnosis \ Start-up \ STEP7 connect.
The V24 interface remains active even after restart or normal power-up. The
connection (STEP7 connect active) to the control system can be checked in
the PLC 802 Programming Tool menu "PLC/Information". If the interface is
active, e.g. the active PLC mode (Run/Stop) is displayed in this window.
The user program can be analyzed or checked for errors using the following
methods:
PLC Status menu (OP)
z
Status list menu (OP)
z
PLC 802 Programming Tool (see Help menu > Contents and Index,
z
"Debugging" or documentation "S7-200 Automation System", Section
"Testing and Monitoring Your Program")
SINUMERIK 802S base line
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