Horner APG RCX HE500RCX404 - Manual (Page 7)

MAN0504-02 23 MAY 2003 PAGE 7
OCX404
6 ANALOG CONVERSION OUTPUT FACTOR
The following table describes how program data values are scaled to real-world analog voltage outputs by
the module. Given a desired output current, the data value is converted by using the conversion factor
from the table. The following formula is used: Data = Output Current (mA) / Conversion Factor
Example:
The user selects a current range of ±20mA:
1.
The desired output current is 12mA.
2. Using the table, the conversion factor for the current range of ±20 mA is 0.000625.
3. To determine the data value, the formula is used:
Data = Output Current (mA) / Conversion Factor
19200 = 12mA / 0.000625
Conversion of Real-World Outputs into Controller
Selected Range Output Register Data Conversion Factor
+20.00 3200
0.00 0 0 to +20mA
-20.00 -32000
0.000625
+10.00 32000
0.00 0 ±10 V
-10.00 -32000
0.0003125
7 DIGITAL INPUT / OUTPUT CHARACTERISTICS
7.1 Digital
Input
Digital Input Chart
.125( ±15%) V-A
0
35VDC
7.2
Digital Output
Derating Chart
0 10 20 30 40 50 60 °C
32 50 68 86 104 122 140 °F
0
AMPS / CHANNEL
.5
.4
.3
.2
.1
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