2.3.4
Digital outputs (DO)
There are 6 digital outputs to display system status or to drive external
devices.
The maximum current drawn at 24 VDC is 500 mA.
Output DO 12 (Poll) indicates when connected amplifiers are checked
for faults at periodic intervals (also refer to Digital Input DI 15).
Output DO 13 (Ready) indicates when the PP15 is initialized and ready
to operate.
Logic signal
DO 12
Poll
DO 13
Ready
Low
Registered amps are not
monitored
PP15 not operating
High
Registered
amps
are
monitored
PP15 operating
Blink (toggle)
No amps registered for
monitoring
PP15 error
Tab. 5: DO 12/13 logic signals
Output DO 14 (Alarm) indicates when an alarm signal is applied to
input DI 16.
An error message from a controlled amplifier is displayed at output
DO 16 (Error). Simultaneously, output DO 15 (Buzzer) emits periodic
impulses (0.5 s high, 4.5 s low). The Buzzer can be reset in the PP15
menu. If a new fault occurs, the Buzzer will be reactivated.
Terminal block connections - X2 Digital Outputs (DO)
Pin
Description
1
GND
2
+24 VDC
3
DO 1
4
DO 2
5
DO 3
6
DO 4
7
DO 5
8
DO 6
9
DO 7
10
DO 8
11
DO 9
12
DO 10
13
DO 11
AutoReset
14
DO 12
Poll
15
DO 13
Ready
16
DO 14
Alarm
17
DO 15
Buzzer
18
DO 16
Error
1
3
4
5
6
7
8
9
10
1
1
12
13
14
15
1
6
1
7
18
2
+24 VDC
Poll
Buzzer
Ready
Alarm
Error
DO1
DO7
DO8
DO9
DO10
DO11
DO12
DO13
DO14
DO15
DO16
DO6
DO5
DO4
DO3
DO2
GND
AutoReset
Tab. 6: X2 Digital Outputs (DO)
B&R PLC PP15 for use with the, d&b Remote network, Reference manual (1.1 EN)
Page 11 of 16
