Siemens SINUMERIK 802C base line User Manual

Start-Up
4-18 SINUMERIK 802C base line
Start-Up
4.3.5 PLC programming
The PLC user program is created using the PLC 802 Programming Tool.
The Documentation “S7-200 Automation System, System Manual’’ describes
how this tool is operated for S7-200. The PLC 802 Programming Tool is to be
understood as a subset of this Documentation.
Compared with the S7-200 MicroWin basic system, please note the following:
z
The PLC 802 Programming Tool is delievered in the English language
version.
z
The user program can only be programmed using ladder diagram.
z
Only a subset of the S7-200 programming language is supported.
z
The compilation of the user program is carried out either offline on a
programming device (PG)PC or semi-automatically when downloading
into the control system.
z
The project can be loaded into the control system (download).
z
It is also possible to load the project from the control system (upload).
z
Direct data addressing is not possible; therefore, no programming errors
will result during the operation.
z
The data/process information must be managed by the user in
accordance with the particular type.
Example:
Information 1 T value DWord memory size (32-bit)
Information 2 Override Byte memory size (8-bit)
User data
Byte 0 DWord (Information 1)
Byte 4 Byte (Information 2)
The user is not allowed to access both of these data at the same time;
otherwise, the relevant data access rules must be observed.
Furthermore, the data direction in the memory model (alignment) and the data
type must be observed for all data.
Example:
Flag bit MB0.1,MB3.5
Flag byte MB0,MB1,MB2
Flag word MW0,MW2,MW4
MW3, MW5 ... are not permissible
Flag double-word MD0,MD4,MD8
MD1,MD2,MD3, MD5 ... are not permissible
Table 4–6 PLC data types permitted in the control system
Data Type Size
Address
Alignment
Range for
Logic Operations
Range for
Arithmetical
Operations
BOOL 1 bit 1 0, 1 -
BYTE 1 byte 1 00 ... FF 0 ... +255
WORD 2 bytes 2 0000 ... FFFF -32 768 ... + 32
767
DWORD
(Double Word)
4 bytes 4 0000 0000 ...
FFFF FFFF
-2 147 483
648 ...
+2 147 483 647
REAL 4 bytes 4 - +/-10
-37
... +/-10
38

Siemens SINUMERIK 802C base line Specifications

General

Brand	Siemens
Model	SINUMERIK 802C base line
Category	Controller
Language	English