Tool change support

Friends I'm working on a project in which we are using servo gun with tool changer. I had completed the gun turning but yesterday while i was jogging the 7th axis (x gun) mistakenly c gun was was selected and it was jogged, due to which all the calibration data was mismatched. Is there any provision that robot wil come to know which gun is picked. I had used actunit and deactunit command is there any other way?

i think so there is no one who has worked on servo tool change option. I have got the way to do the gun check if any one in need please PM