5 - RSLogix/Studio5000 Adv Manual - GSV Get System Variable

With the RSLogix5/500 platform, the system variables were available in the S2 file and could be directly addressed...not so with the Logix Engine...you have to go GET them and then use them with the GSV instruction and if you want to change their values, you cannot directly address them...you have to SET them with the Set System Variable instruction.