Precision Digital PD8-765 - Manual (Page 8)

PD8 Series Explosion-Proof Instrument Supplemental Manual
8
Digital Inputs & Outputs
Note: PD8 Series P RO V U integrated functionality models only.
See notices and warnings on page 18.
CHANNELS 4 digital inputs & 4 digital outputs per module
SYSTEM
One expansion module may be added for a total of 8 in-
puts & 8 outputs
Note: The jumper located between the RJ45 connectors
must be removed on the expansion module.
DIGITAL INPUT
LOGIC HIGH
3 to 5 VDC
DIGITAL INPUT
LOGIC LOW
0 to 1.25 VDC
DIGITAL OUTPUT
LOGIC HIGH
3.1 to 3.3 VDC
DIGITAL OUTPUT
LOGIC LOW
0 to 0.4 VDC
SOURCE
CURRENT
10 mA maximum output current
SINK
CURRENT
1.5 mA minimum input current
+5 V
TERMINAL
To be used as pull-up for digital inputs only.
Connect normally open pushbuttons across +5 V & DI 1-4.
WARNING
DO NOT use +5 V terminal (pin 1) to
power external devices.
External Switch Contacts
PD8-765 Series Trident X2 integrated functionality models only. See Vigilante II
Instruction Manual for information on PD8-154 and PD8-158 Series external switch
contact specifications.
Open State +5 VDC open contact on switch input terminals
Closed State
Closed contact switch input terminal to common/ground,
active low 0 to 0.4 VDC, or open collector transistor acti-
vated input