3internal schematic – Horner APG RCX HE500OCX003 User Manual
Page 4
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