Using The Td 200 Wizard To Configure The Td 200 Operator Interface - Siemens Simatic S7-200 System Manual
Programmable controller
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Also See for Simatic S7-200:
- System manual (607 pages) ,
- Getting started (65 pages) ,
- Manual (55 pages)
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Additional Features of STEP 7-Micro/WIN
5.1
Using the TD 200 Wizard to Configure the TD 200 Operator Interface
The TD 200 Operator Interface is a text display device that displays messages enabled by
the S7-200 CPU. See Figure 5-1.You do not have to configure or program the TD 200. The
only operating parameters stored in the TD 200 are the addresses of the TD 200, the
address of the CPU, the baud rate, and the location of the parameter block. The
configuration of the TD 200 is stored in a TD 200 parameter block located in the V memory
(data memory) of the CPU. The operating parameters of the TD 200, such as language,
update rate, messages, and message-enabled bits, are stored in a program in the CPU.
Figure 5-1
Defining the TD 200 Parameter Block
The parameter block consists of 10 or 12 bytes of memory which define the modes of
operation and point to the location in CPU memory where the actual messages are stored,
as shown in Figure 5-2. When you power up the TD 200, it looks for a parameter block
identifier in the CPU at the offset configured in the TD 200, either the ASCII characters "TD"
or an offset to the parameter block location, and it reads the data contained in the block.
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9
Parameter
Block ID
"T"
"D"
7 6 5 4 3 2 1 0
A L L L U U U U
Language
Select Standard or
Alternate (Bar Graph)
Character Set
Figure 5-2
5-2
SIEMENS
F5
F6
F1
F2
SIMATIC TD 200 Operator Interface
CPU Memory
TD 200
No. of
M Area
Configuration
Msgs.
Address
7 6 5 4 3 2 1 0
0 P C F
Display
Update Rate
Disable/Enable Time-of-Day Clock Menu
Disable/Enable Edit Password.
Note: If enabled, password is stored in bytes 10 and 11
of extended parameter block.
TD 200 Parameter Block
TD 200
F7
F8
F3
F4
SHIFT
ESC
ENTER
Message
Message
Enable
Address
Address
Points to messages
D
Display Mode:
20 or 40 characters per message
Disable/Enable Force Function
S7-200 Programmable Controller System Manual
C79000-G7076-C230-02
Byte 10 Byte 11
Password
(optional)
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