Pilz PIT m3.2p machine tools pictogram - Manual (Page 32)

Function description
Operating Manual PIT m3.2p
1003176­EN­02 32
4.3.3 Evaluation by a control system
4.3.3.1 Evaluation of the Key ID number with transmitter­controlled communication
IDo0
(IDsync)
Bit 27 Bit 25 … Bit 16 Bit 15 Bit 14
IDo2
(IDout0) Bit 26
[c] [d]
t
en
IDo1
(IDclock)
[b]
max. 100 ms
Bit 13 Bit 11 … Bit 02 Bit 11 Bit 00
IDo3
(IDout1) Bit 12
Bit 27 Bit 25 … Bit 16 Bit 15 Bit 14
IDi0
(IDin0) Bit 26
Bit 13 Bit 11 … Bit 02 Bit 11 Bit 00
IDi1
(IDin1) Bit 12
T
[a] min. 60 ms [f]
[e]
Fig.: Timing diagram for transmitter­controlled signal download
Legend:
The additional terminal designations (IDsync, IDclock, IDout0 etc.) are abbreviations for
the terminal signal's application.
IDo0 Control line
The signal is generated by the operating mode selector switch.
"0" signal No transponder key is connected or the transponder key that
is connected is invalid.
"1" signal A valid transponder key is created. The operating mode se­
lector switch signals to the control system when the down­
load starts. The signal is present for 100 ms.
IDo1 Test pulse line
The signal is generated by the operating mode selector switch and indic­
ates the validity of the data bits at IDo2 and IDo3.
} T = 100 ms
} Duty cycle = 50%
IDo2, IDo3 Data lines for transmitting the Key ID number
The operating mode selector switch sends the Key ID number to the con­
trol system via these two data lines.
IDo2: Send Bit 27 … Bit 14
IDo3 Send Bit 13 … Bit 00
IDi0, IDi1 Data line for reading back the Key ID number
The control system sends the previously received Key ID number back to
the operating mode selector switch via these two data lines.
IDi0: Receive Bit 27 … Bit 14
IDi1 Receive Bit 13 … Bit 00