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3.1 Performance Specifications
3.1.2 I/O conversion characteristic
3
SPECIFICATIONS
(1) Set within the analog input range and digital output range for each input
range.
If these ranges are exceeded, the maximum resolution and accuracy may not
fall within the performance specifications. (Avoid use shown by the dotted
lines in Fig.3.3.)
(2) Do not input an analog input current of -30mA or less and 30mA or more.
The input elements may be damaged.
(3) Set the offset/gain values for the User range setting marked within a range
which satisfies the following conditions.
(a) Gain value 24mA, offset value 0mA
(b) Use one of the following formulas according to the resolution mode to be
set.
1) Normal resolution mode
{ (Gain value) - (Offset value) } > 5.5mA
2) High resolution mode
{ (Gain value) - (Offset value) } 16.0mA
(4) When an analog value that exceeds the range of the digital output value is
entered, the digital output value will be fixed at the maximum or minimum
value.
Analog input
range setting
Digital output value
(Normal resolution mode)
Digital output value
(High resolution mode)
Minimum Maximum Minimum Maximum
0 to 20mA
-96 4095 -288 12287
4 to 20mA
4 to 20mA
(Extended mode)
-1096 4595 -3288 13787
User range setting -96 4095 -288 12287
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