Siemens TIM 1531 IRC Operating Instructions Manual page 190

Block library TeleControl ST7
5.7 Master copies
Explanation: Send on change
Parameter:
Declaration:
Data type:
Range of
values:
Default:
Address
range:
Explanation: Trigger input
190
With the setting TRUE, the block runs a change check within the acquired
data area "DataInput". The block checks whether at least one bit has
changed. If a change is detected, a transfer of the data area is started auto-
matically. You specify whether the entire area is transferred or only the
changed part with the "SendAll" parameter.
If the setting is FALSE, you need to trigger the transfer via the input parameter
"TriggerInput".
TriggerInput
INPUT
BOOL
TRUE / FALSE
FALSE
Input
Memory bit
Data bit
With the edge change 0 → 1 of the "TriggerInput" input, the transfer of the data
frame can be triggered at a required time.
Example:
Time-driven analog value transfer with time stamp for supplying an analog
value archive in the control center.
The FC Trigger block can be used for time-driven triggering of a transmission
over "TriggerInput".
"TriggerInput" actually only triggers transmission indirectly. With a 0 → 1 edge
change at "TriggerInput", the data frame is put together with its current values
and transferred to the local TIM. The TIM is responsible for the actual trans-
mission to the partner. With dedicated lines or wireless networks the transfer
is immediate. With a dial-up connection, it is possible that the data frame is
saved first on the TIM and sent at a later point in time. The reason can, for
example, be that the data frame is marked as "Conditional spontaneous", see
parameter "Conditional".
I 0.0 ... I n.7
M 0.0 ... M n.7
L 0.0 ... L n.7
DBm.DBX 0.0 ... n.7
Operating Instructions, 02/2018, C79000-G8976-C468-02
TIM 1531 IRC