Appendix; Analog Input Type And Data Format - ICP DAS USA PET-AR400 User Manual

Appendix

A. Analog Input Type and Data Format
Type Code Input Range
00 -10 ~ +10V
 Engineering Unit:
The value gets from the software is 10000000 times of the real value.
Example：
Read data is 20000000 (Dec.) or 0 x 1312D00h (Hex.), it means the value is 2V.
Read data is 51860000 (Dec.) or 0 x 3175220h (Hex.) , it means the value is 5.186V.
Value Conversion:
20000000
��1 =
10000000
��1
= 2V
 2's Complement (Hex)：
The value is usually displayed on the file or software in hexadecimal format. For example,
"1460h" or "E000h" ("h" refers to hexadecimal). The values obtained from the software can be
converted to actual values using the following formula.
Example：
Read data is 1526830688(Dec.) or 0x5B019660h(Hex.), it means the value is 7.1098V.
Read data is -1610576692(Dec.) or 0xA0008CCCh(Hex.) , which means the real value is -7.4998V.
Value Conversion:
��1 1526830688
=
10 2147483647
��1 = 7.1098V
PET-AR400 User Manual
Data Format
Engineering Unit
2's comp HEX
Value Conversion:
51860000
��2 =
10000000
��2
= 5.186V
Value Conversion:
��2 −1610576692
=
−10 −2147483648
��2 = -7.4998V
V1.0.0
+F.S -F.S
+10000000 -10000000
7FFFFFFFh 80000000h
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