Omron TJ1/GRT1 Hardware Reference Manual page 188

Hardware reference
EnDat
You can configure the TJ1-FL02 to
interface directly to EnDat absolute
encoders. EnDat absolute encoders
respond on a dedicated Clock and
Data 1 MHz RS485 serial interface
when their position is requested by
Encoder signal Axis A
DATA 6
/DATA 7
CLOCK 1
/CLOCK 2
GND 5 / 15
Note
The TJ1-FL02 does not have a termination inside. In case of long
distances or disturbed communication, add an external termination
to the TJ1-FL02.
The table below and the figure give
an example of how to connect the
Heidenhain ROC 425 2048 5XS08-
C4 encoder to the TJ1-FL02.
Encoder
Pin Signal Wire color
3 DATA Grey
4 /DATA Pink
7 CLOCK Violet
6 /CLOCK Yellow
5 GND White/Green
HARDWARE REFERENCE MANUAL
the controller. When you set the
encoder to the relevant encoder
mode, the axis transmits an
information request to the encoder
on a fixed 250 µs cycle.
The connections for EnDat are:
/i
Axis B
8
9
11
12
5 / 15
/i
TJ1-FL02
Pin Signal
6 DATA
7 /DATA
1 CLOCK
2 /CLOCK
5 GND
fig. 121
TJ1-FL02
3
6
4
7
7
1
6
2
5
5
2
1
5 V
0 V
5 VDC Power Supply
183