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Communications configuring
3.18.1.3
Function block WR_TAB
Symbol
Block activation ―BO
Request to write a new table ―BO
Request to write the tabular
values in the data block
Last data block for the table ―BO
Logical module address ―W
Data set number for the read
and write data set
Data block number ―W
TIMEOUT time for receiving
the acknowledge telegram from
the FM module
3-180
A detailed description of the "Automatic mode: Communications" mode to
transfer tables from an S7 control to a SIMATIC FM 458 application
module is provided in the Section "Automatic mode: Communications"
(Page 3-184).
The function block WR_TAB is used to transfer tables from one S7
control to a SIMATIC FM 458 application module. The tabular values
(permissible data types are REAL and double integer) are saved in a data
block. They are transferred from WR_TAB to the function blocks TAB and
TAB_D on the SIMATIC FM 458 application module, which then internally
manages the tabular values.
The WR_TAB should be configured on the control side. The tabular
values are transferred from one S7-400 control to a SIMATIC FM 458
application module via the P bus. All of the values are always transferred,
which are in the DB specified at the DBNUM input.
WR_TAB
EN
REQTAB
―BO
REQDB
LASTDB
LADDR
―BY
RECNUM
DBNUM
―DW
TFT
W ―Number of data blocks to transfer the
TABTEL
complete DB contents
W ―Number of data blocks already
CNTTEL
transferred
W ―Actual processing status
STATUS
W ―If required fault messages
ERROR
B ―Status parameter DONE: Send
DONE
operation completed
System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
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