User Manual
PAGE 4  19 MAR 2003  OCX003 
Information is subject to change without notice. Cscape is a trademark of Horner APG, LLC. 
2.3  Analog Input / Output  
3  INTERNAL SCHEMATIC 
Specification for transient voltage suppressors used on digital output circuitry is 33V, 300W. 
VCC
To  
Controller
 I/O Connector 
iI1 
 C
 Digital Input 
Field 
Side 
OCX Back View Connector – Shows 
corresponding I/O pin location 
 * 
Signal 
Pin 
OCX003 
Analog In / Out 
I1  Input 1 
C  Common 
I2  Input 2 
C  Common 
I3  Input 3 
C  Common 
I4  Input 4 
C  Common 
NC   No Connect 
NC   No Connect 
NC   No Connect 
NC   No Connect 
Note: The Voltage/Current mode switch is located directly 
above each input. Moving a switch towards Pin 1* selects 
±
20mA for the corresponding channel. Moving the switch 
towards Pin 12 selects ±
10VDC. Each channel must be set 
up in Cscape for the desired mode in addition to the physical 
switch settings for proper signal scaling in the PLC registers.  
±20mA SELF POWERED TRANSMITTER
 * 
I1 
C 
I2 
C 
I3 
C 
I4 
NC 
20mA LOOP POWER
+ 
+ 
LOOP POWERED TRANSMITTER
±10V SOURCE
±10V SOURCE
001OCX010
NC 
NC 
NC 
From 
Controller
V+
Q
VC
 I/O Connector
Field 
Side 
 Digital Output 








