Block library TeleControl ST7
5.7 Master copies
TIM 1531 IRC
200 Operating Instructions, 02/2018, C79000-G8976-C468-02
● ContinuousEnterFunct
Set the parameter to TRUE if you enter the parameters using software, for example via
an operator panel (OP). There is a constant check for changes. When a change is
detected in the data area defined with "ParameterInput", the data double words that have
changed since the last transfer are transferred.
Only the changed data is transferred (see note "Changed data areas" below).
● Release
Use this input parameter if you enter the parameters using software, for example via an
OP. The "Release" input should then be set using a function key on the OP. Changes are
checked when a 1 signal is detected at the "Release" input. The data double words from
the data area specified with "ParameterInput" that have changed since the last transfer
are transferred.
Only the changed data is transferred (see note "Changed data areas" below).
● RetransmitAll
Use this input parameter if you enter the parameters using software, for example via an
OP. The "RetransmitAll" input should then be set using a function key on the OP. When a
1 signal is detected at the "RetransmitAll" input, the data area configured in
"ParameterInput" is transferred without checking for changes.
The entire data area specified by "ParameterInput" is transferred.
Note
Changed data areas
When only the changed data area is transferred, this area consists of the first and the last
double word in which a chan
ge was detected and all words located in between, even if these
The area to be read in is 10 double words long. In this case, changes were detected in the
second, fifth and eighth double words. The transferred area is therefore f
rom the 2nd to the
Remember word boundaries
When only changed data is transferred and the data area contains values in double word
format, make sure that the double word values are actually located in one of the maximum
12 double words of
the data area to be acquired.
Distribution over two consecutive data double words could lead to the transfer of only one
word of the double word value (high or low word) because a change has occurred in only
that particular word. In this case, the missing
word can lead to a data error on the receiving
partner (applies to ST7cc, not for an S7 CPU).
Note
DB with standard access
The block has parameters of the "ANY" type. Therefore, leave the "Optimized block access"
attribute in the properties of the DB d
isabled.