Programming
159
NI-3101-SIG Signature Series NetLinx Integrated Controller
IR / Serial Ports Channels
RS-232/422/485 Send_String Escape Sequences (Cont.)
Command Description
27,20,1
Set the RTS hardware
handshake's output to
low/inactive (< 3V).
Syntax:
SEND_STRING <DEV>,"27,20,1"
Example:
SEND_STRING RS232_1,"27,20,1"
Sets the RTS hardware handshake's output to low on the RS232_1 device.
IR / Serial Ports Channels
00001 - 00229 IR commands.
00229 - 00253 May be used for system call feedback.
00254 Power Fail. (Used w/ 'PON' and 'POF' commands).
00255 Power status. (Shadows I/O Link channel status).
IR ports - Ports 9 - 16 (NI-4X000/3X00) and Ports 5 - 8 (NI-2X00).
The NI series of NetLinx Masters support Serial control via the IR port when using
firmware version 300 or greater.
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