Pilz PIT m3.2p machine tools pictogram - Manual (Page 36)

Function description
Operating Manual PIT m3.2p
1003176­EN­02 36
Download procedure
[a] "1" signal at IDo0 (control line):
A valid transponder key is present at the operating mode selector switch.
[b] "1" signal at IDi0 (handshake line):
The control system requests a data bit at data line IDo2 an (= Request).
[c] "1" signal at IDo1 (handshake line):
The operating mode selector switch confirms the validity of the data bit at data
line IDo2 (= Response).
[d] "0" signal at IDi0 (handshake line):
The control system confirms that it has read the requested data bit without error.
[e] "0" signal at IDo1 (handshake line):
The operating mode selector switch is ready to issue a new data bit at data line
IDo2.
[f] "0" signal at IDo0 (control line):
The transponder key has been removed.
[g] The control system must request all the data bits of a Key ID number (Bit27 …
Bit00). Only then is it possible to start downloading a new Key ID number. The
end of the download is indicated by the signal extension (t
IDend
) at IDo1.