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Titan Enterprises Ltd ©2021
Atrato_Instruction_Manual_0322
®
Atrato Connector Assignments
PIN
Label
Function
1
Relay NO
Isolated relay contact; normally open contact 24V 100mA
2
Relay
Common
Isolated relay contact; change over contact 24V 100mA
3
Relay NC
Isolated relay contact; normally closed contact 24V 100mA
4
4-20mA
Analog current (4-20mA) output (reference to 0V)
5
0-5/10V
Analog voltage (0-5/10V) output (reference to 0V)
6
PNP
Output 1 open collector PNP OR Input 1 (5-24V dc) e.g. switch
to pin 9
7
NPN
Output 2 open collector NPN OR Input 2 (5-24V dc) e.g. switch
to pin 8
8
0V
External ground, common for PNP, NPN and Analog outputs
9
+9 -24V DC External power VDC; +9V
–
24V (15V
–
24V for Analog output)
= Operates on External Power or USB
= Operates on External Power only
