Siemens SIMATIC S5-115U, Руководство пользователя

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S5-115U Manual STEP 5 Operations
Table 8-8. Overview of Block Call Operations
* The length of the DB must be deposited in ACCUM 1 before execution of the command. In the case of length 0,
the DB is invalid.
** Data blocks DB0 and DB1 are reserved.
Operation Meaning
Jump unconditionally
Program scanning continues in a different block regardless of the
RLO.
The RLO is not affected.
Parameter
0 to 255
0 to 255
0 to 255
0 to 255
Operand
JU
JC Jump conditionally
Program scanning jumps to a different block when the RLO is "1".
Otherwise program scanning continues in the previous block.
The RLO is set to "1".
ID
OB
PB
FB
SB
C
BE Block end
The current block is terminated regardless of the RLO.
Program scanning continues in the block in which the call
originated. The RLO is "carried along" but not affected.
BEU Block end, unconditional
The current block is terminated regardless of the RLO.
Program scanning continues in the block in which the call
originated. The RLO is "carried along" but not affected.
BEC Block end, conditional
When the RLO is "1", the current block is terminated.
Program scanning continues in the block in which the call
originated. During the block change, the RLO remains "1".
If the RLO is "0", the operation is not executed.
The RLO is set to "1" and linear program scanning continues.
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Call a data block
A data block is activated regardless of the RLO.
Program scanning is not interrupted.
The RLO is not affected.
Parameter
2 to 255
**
ID
DB
G Generate and delete a data block
*
An area is set up in the RAM to store data regardless of the RLO.
EWA 4NEB 811 6130-02b
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