LSIS XBF-AH04A

XGB Analog edition manual
13.6.5 Function retaining valid conversion value
When the valid signal is out of the range, the last converted valid input value is retained.
The function retaining valid conversion value is able to designate for each channel by user program
and I/O parameter setting.
1) Used input range
In the channels that allow the function retaining valid conversion value, the actual ranges
provided within each digital conversion value are shown.
For example, in case of operating output data type of unsigned value, original digital output value
is shown from -192 to 16,191.
However, if this function is allowed, it will be shown from 0 to 16,000.
(1) Digital output value depending on input range ( unsigned value, signed value, percentile value)
Classification
Unsigned
value
Signed
value
Precise
value
Percentile
value
Unapplied case -192~16,191 -8,192~8,191
(2) Reference
-120~10,119
Applied case 0~16,000 -8,000~8,000 0~10,000
(2) Digital output value depending on input range (Precise value)
Analog input range Classification Precise value
4 ~ 20㎃
Unapplied case
3,808~20,191
Applied case
4,000~20,000
0 ~ 20㎃
Unapplied case
-240~20,239
Applied case
0~20,000
1 ~ 5V
Unapplied case
952~5,047
Applied case
1,000~5,000
0 ~ 5V
Unapplied case
-60~5,059
Applied case
0~5,000
0 ~ 10V
Unapplied case
-120~10,119
Applied case
0~10,000
-10 ~ 10V
Unapplied case
-10,240~10,239
Applied case
-10,000~10,000
2) Operation
When operating with 4 ~ 20mA while being allowed this function, output value for input value
change of the moment is as follows. (Output data type : In case of 0~16,000)
Input
current(㎃)
12
㎃
3
㎃
4
㎃
12
㎃
21
㎃
20
㎃
Digital output
value
8,000 8,000 0 12,000 12,000 16,000
Remarks for
reference
-
Retaining
previous
value
- -
Retaining
previous
value
-
13 - 14