Chapter 6 ASCII serial port instructions
130 Rockwell Automation Publication 2080-RM001D-EN-E - February 2015
ARDARL data type
The following table describes the ARDARL data type.
Parameter Data type Description
Channel UINT Serial port number:
• 2 for the embedded serial port, or
• 5-9 for serial port plug-ins installed in slots 1 through 5:
• 5 for slot 1
• 6 for slot 2
• 7 for slot 3
• 8 for slot 4
• 9 for slot 5
Length UINT The number of characters that you want to read from the buffer (maximum is 82).
Cancel BOOL When this input is set to TRUE, this function block does not execute. If already executing, operation ceases.
AWAAWT data type
The following table describes the AWAAWT data type.
Parameter Data type Description
Channel UINT Serial port number:
• 2 for the embedded serial port, or
• 5-9 for serial port plug-ins installed in slots 1 through 5:
• 5 for slot 1
• 6 for slot 2
• 7 for slot 3
• 8 for slot 4
• 9 for slot 5
Length UINT The number of characters that you want to write to the buffer (maximum is 82).
Note: If you set the Length to 0, AWA sends 0 bytes of user data and 2 bytes of appended characters to the buffer.
Cancel BOOL When this input is set to TRUE, this function block does not execute. If already executing, operation ceases.
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