By: Coupe Automation | Version: 2.00 | Updated: April 1, 2026
Driver Instructions
This driver is for communication of system variables between RTI processors for a multi-processor environment. Comms between two RTI processors is the only supported mode of operation. String, Integer and Flag variables can be automatically communicated from an XPn to another XPn by configuring each desired variable in ID during programming.
Processor to Processor Communications Driver
Dynamic Naming: If you used this driver before and are updating it, open the String Names, Integer Names and Flag Names configuration categories and give names to each of the variables you are receiving from the other Processor.
RS-232 Connection: The RS-232 connection between XP processors can use a Cat-5 cable with special terminations. A null modem is required, therefore you must swap the Rx and Tx pins between processors.
TCP or UDP Connection: The TCP or UDP connection between XP processors uses standard Ethernet networking and requires no special or additional cabling. Currently UDP is the only protocol that works between XP processors.
Strings, Flags, Integers: These variables are for mapping this XP processor's driver and system variables to the partner XP processor. The state of String, Flag and Integer variables will be automatically maintained from this processor to the partner processor.
Macros: You can select system Macros that the partner processor can execute directly. The macros will be mapped to Macro 1, Macro 2, etc. on the partner processor.
System Driver Events: This driver provides system events that you can setup on the Events tab of the XPn processor in Integration Designer.
Commands
Execute System Macro - Call this function to execute a (short) macro on the partner XPn processor.
Trigger Driver Event - Call this function to trigger a system event on the partner XPn processor.
You can test this driver for one hour after download or reboot on your RTI processors. If you like it and it works for you, you can purchase a license key.