RS485 Output
Sends a RS485 BUS communication
Category: Output
Description:
The RS485 Output block sends message by RS485 BUS communication. It is necessary to split the data in bytes as shown in Figure 1.
Figure 1 - RS485 Output block in an application
Different of the CAN Output block, the RS485 Output block receives as many byte as defined in its properties dialog. Figure 2 shows the parameters of the block from Figure 1.
Figure 2 - RS485 Output payload set as 4
Figure 3 and 4 show an example using the diagram from Figure 1 and its results.
Figure 3 - RS485 Output application
Parameters:
Defines what RS485 will be used by the block.
The Payload Size parameter defines how many payload there are in the message. The number of the payloads
Message Header is the initial part of data communication that provides essential information about the message to be transmitted. In
QFIRE Studio
is possible to define it typing a decimal number or a hexadecimal number separating the different headers with semicolons.Ports:
Input
The number of Byte port is equal to the number of Payload Size. Each one of the returns a payload. The Byte [0] port receives the least significant byte and the Byte[7] receives the most significant byte.
Data Types:
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