Overview 1-5
Series
505 High Speed Counter
and Encoder Module User
’
s Manual
1.3 Outputs
Each
channel has two open collector outputs capable of driving TTL level
signals or sinking up to 0.4 Amps of current (at 40
_
C) from an external 24
VDC source and load.
Y
Output
Output Return
Output Circuit
0 P1 P2 65,535
Y1
Y2
Counter V
alue
Figure 1-2
Output
The
output transistor (Y
1
or Y
2
) turns on when the count is greater than or
equal to the corresponding preset. Figure 1-2 shows the field output
operation. Y
ou can invert this operation by setting the appropriate bits in
the setup word, WY4. See Section 4.1.