Using the Text Display Wizard to Configure the S7-200 CPU for Your Text Display (TD) Device
4.7 Assigning the V Memory Address for the Parameter Block
Text Display (TD) User Manual
98 System Manual, 08/2008, A5E00765548-03
You cannot fit one single-byte character plus one double-byte character in a character
position.
The TD 100C does not support the entire Simplified Chinese character set, but does support
the most commonly used characters. Characters that are not supported by the TD 100C are
displayed as a square.
See the Simplified Chinese Characters Set on the STEP 7-Micro/WIN documentation CD for
a list of characters supported by the TD 100C.
4.7 Assigning the V Memory Address for the Parameter Block
Assigning the V Memory Address for the Parameter Block
The Text Display wizard creates the parameter block that you download to the S7-200 CPU
with your user program. The parameter block includes the configuration data for the TD
device and any screens and alarms that you created.
The Text Display wizard calculates the amount of memory required for the parameter block
and suggests a starting address in V memory.
The default location for the parameter block is VB0.
3DUDPHWHU%ORFN$GGUHVV
'HILQHWKHDGGUHVVRIWKHSDUDPHWHUEORFN
9PHPRU\
ᅛ
Figure 4-32 Assigning the Address of the Parameter Block
4.8 Finishing the Configuration for the TD Device
Finishing the Configuration for the TD Device
After you complete the configuration for your TD device, the Text Display wizard displays a
summary dialog. (See the figure below.)
If you enter a name for the TD configuration, STEP 7-Micro/WIN creates an entry in the
project tree for the TD configuration.
STEP 7-Micro/WIN also creates the following subroutines:
● TD_CTRL_x (where x is the TD configuration number)
– This subroutine ensures that all updates for the TD device (such as alarms or
changing the language setting) occur immediately.
– Your user program should use SM0.0 to call this subroutine every scan
To Next Page
Loading...
