Siemens SIMATIC 505 User Manual
Overview
1-5
Series 505 High Speed Counter
and Encoder Module User
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
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 Value
Figure 1-2
Output
The output transistor (Y
1 or Y2) turns on when the count is greater than or
equal to the corresponding preset. Figure 1-2 shows the field output
operation. You can invert this operation by setting the appropriate bits in
the setup word, WY4. See Section 4.1.
operation. You can invert this operation by setting the appropriate bits in
the setup word, WY4. See Section 4.1.