Communications configuring
3-242 System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
In the configuring example, both message evaluation blocks set-up a
channel at the data interface D01 in the "select" mode (thus, the same
channel name can be configured).
The measured value input of block MER is not connected in the particular
example. At the measured value input, a process condition is normally
applied. The message signals of function block MERF0 act similarly.
Messages are generated by a rising edge at connection I1 of block MER
or by a changing value at input IS1 of block MERF0. The message
evaluation block immediately reads-out the first message from the
message buffer and transfers into the data channel as both blocks are
"enabled" (input EN=1). Additional messages are only transferred into the
data channel when the previous message has been read-out of the
channel.
Channel on the
data interface
Measured value
input and message
signals
Generating and
reading-out
messages
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