Delta Tau ACC-28EP, User Manual

Page: 12 / 17

ACC-28EP 16bit ADC Board 12
4. CONVERTING VALUE
4.1. E1/E2 : 2-3 Short, S_CH-1 : OFF, S_CH-2 : ON
 Bipolar Convert
 ±5[V] Range : ADC- to ADC+  -10[V] ~ +10[V]
A. Differential Ended Input
=
(
+ )[ ]
[ ]
× −
Input Voltage Calculation ADC Value
-5[V](Differential) 0/10*65535 0
0[V](Differential) 5/10*65535 32767
5[V](Differential) 10/10*65535 65535
= ÷ − × −
//Ex) Base Add : $78C00, CH1 Input Voltage
#define 28EP_ADC_CH1 M4000
#define INPUT_VOLTAGE P100
28EP_ADC_CH1->Y:$78C00,8,16,U
INPUT_VOLTAGE = 28EP_ADC_CH1/$FFFF*10-5
B. Single Ended Input
=
(
+
)[ ]
[ ]
× −
Input Voltage Calculation ADC Value
-10[V](Single) 0/20*65535 0
0[V]( Single) 10/20*65535 32767
10[V]( Single) 20/20*65535 65535
= ÷ − × −
//Ex) Base Add : $78C00, CH1 Input Voltage
#define 28EP_ADC_CH1 M4000
#define INPUT_VOLTAGE P100
28EP_ADC_CH1->Y:$78C00,8,16,U
INPUT_VOLTAGE = 28EP_ADC_CH1/$FFFF*20-10