Ahl - Allen-Bradley Micro800 General Instructions Manual

Chapter 6
ASCII serial port instructions

AHL

Parameter
IN
AHLInput
Q
ChannelSts
Error
ErrorID
116
AHL sets or resets the RS-232 Request to Send (RTS) handshake control lines for
your modem.
Arguments
Parameter type Data type
Input BOOL
Input AHLI
Output BOOL
Output WORD
Output BOOL
Output UINT
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015
Description
If Rising Edge (IN turns from FALSE to TRUE), start the function block with the precondition
that the last operation has been completed.
Set or reset the RTS control line for the modem.
See AHLI data type on page 129.
Outputs of this instruction are updated asynchronously from the program scan. Output Q
cannot be used to re-trigger the instruction since IN is edge triggered.FALSE - The function
block is not done.
TRUE - The function block is done.
Displays the current status (0000 to 001F) of the handshake lines for the channel specified.
See AHL ChannelSts data type on page
FALSE - No error.
TRUE - An error is detected.
See ABL error codes on page 127.
128.