CDP Studio Documentation

Framework - CDP Core
SendMessage
4.12.8

SendMessage

The SendMessage is a block used to send messages to one or multiple targets using added MessageArgument outputs.

Usage

SendMessage supports adding multiple MessageArgument outputs and multiple Argument inputs.

When user-added input arguments exist they are added to the data partition of the message. Depending on the message Command the encoding of the arguments is as follows:

for any CM_TEXTCOMMAND the data is encoded as semicolon-separated argument name and value key-value pairs "Speed=10;Distance=15".
for any binary command the data is encoded as network byte-ordered raw data bytes in the current argument order.

Object API

TriggerOn

Flags option defining when a message should be sent.

Rising sends a message on the rising edge of Trigger argument,
Falling sends a message on the falling edge of Trigger argument,
High sends a message when Trigger argument is high during cycle time and,
Low sends a message when Trigger argument is low during cycle time,
Data sends a message when data Arguments have changed during cycle time,
Init sends message once after application startup.
Every data change sends message every time any of the data Arguments changes value (including multiple changes during single cycle torugh GUI routing or StudioAPI)

Trigger

Argument that is used to trigger message sending according to set flags in TriggerOn property

Note: No messages will be delivered until all MessageArgument(s) are connected. While not connected triggers will arm the sender, causing a message to be sent when all MessageArgument have become connected.

See also MessageArgument, ReceiveMessage, and MessageProxy.

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