Pda1044 digital i/o module, Scanner instruction manual, Do 1-4 gnd ack – Precision Digital PD6080 User Manual
Page 63: Di 1-4, Acknowledging relays
PD6080/PD6081 Super Snooper Modbus
Scanner Instruction Manual
63
Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset:
1. Via the programmable F4 digital input assigned to ACK (Default) and connected to a normally
open pushbutton wired across F4 and COM.
2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V
terminals on the digital I/O modules, which is triggered with a contact closure to COM, or with an
active low signal (see page11).
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are
acknowledged.
P-
F4
P+
COM
V+
3
4
1
2
5
mA+ COM
V+
mA+
7
8
6
9
Ack
Figure 18. Acknowledge Relays with F4 Function Key
+5
I1
I2
I3
I4
O1
O2
O3
O4
G
DO 1-4
GND
ACK
PDA1044 Digital I/O Module
1
2
3
4
5
6
7
8
9
10
DI 1-4
Figure 19. Acknowledge Relays with Digital Input