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E.3
Using STEP 7–Micro/WIN (version 3.1 or greater)
If you are using STEP 7–Micro/WIN version 3.1 (or greater), the existing TD 200
configuration was created in an earlier STEP 7–Micro/WIN version (prior to 3.1),
and you want to define an alternate character set, follow the steps below.
1. Use the TD 200 Wizard to create the TD 200 configuration (see Section 2.1). If
you want to set up an alternate character set, ensure that the value specifying
the starting address for the message enable bits is at least 14 bytes greater
than the beginning address for the configuration.
If you used the default value of 12 suggested by a previous TD 200 Wizard, you
should change this value to 14.
Example: In Figure E-3, the starting address is 0. Therefore, the starting byte
for enable flags should be 14.
2. Changing the value that specifies the starting address for the message enable
bits causes the TD 200 to read the message enable bits from a different
location. Examine your program for code that uses the message enable bits.
Modify the code to reflect the change in starting address.
TD 200 Configuration Wizard
TD200
Figure E-3 Wizard: Block Address, Enable Flags, and Message Location
SIMATIC TD 200 Operator Interface
C79000-G7076-C272-01
You must define where the 14 byte parameter definition will be placed in the
data block. It is usually located at VB0.
Starting byte for 14 byte parameter block:
You have defined 3 messages requiring 1 byte(s) for message enable flags.
You must now define where the enable flags will reside in the data block.
You have defined 3 messages requiring 120 consecutive bytes for the
message information. You must define where the message information is to
reside in the data block.
Starting byte for message information:
Modifying a TD 200 Configuration
Starting byte for enable flags:
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