LSIS XGT Series - Hold Last Value Function; Alarm Function; Setting Function of Channel Output Status

Chapter 13 Built-in Analog Function
13-17
13.5.6 Alarm Function
When the input signal is exceeded from valid value, the alarm will be shown through alarm flag of relevant channel.
(1) Input detection condition
Detection condition for each input signal range is as follows.
Analog input range
Signal difference
Permission range
Lower limit
Upper limit
4 to 20
㎃
16
㎃
1.2%
3.808
㎃
20.192
㎃
0 to 20
㎃
20
㎃
-0.24
㎃
20.24
㎃
1 to 5 V
4 V
0.952 V
5.048 V
0 to 5 V
5 V
-0.06 V
5.06 V
0 to 10 V
10 V
-0.12 V
10.12 V
-10 to 10 V
20 V
-10.24 V
10.24 V
(2) Alarm indication for each channel
Alarm detection signal is shown on U01.08 and U01.09. If input signal returns to the within of effective range,
alarm detection signal also returns to the normal status automatically.
(a) Upper limit alarm
Device Name
Device assignment
Description
Status description
_01_AD0_HOOR %UX0.1.48 CH0 upper limit alarm
Off: Normal
On: Maximum alarm
occurrence
_01_AD1_HOOR %UX0.1.49 CH1 upper limit alarm
(b) Lower limit alarm
Device Name
Device assignment
Description
Status description
_01_AD0_LOOR %UX0.1.56 CH0 upper limit alarm
Off: Normal
On: Maximum alarm
occurrence
_01_AD1_LOOR %UX0.1.57 CH1 upper limit alarm
Notes
The channel conversion data will be 0 and Lower limit alarm flag will be ON if the input signal is out of the
effective range as below when the input channel is enabled and hold last value function is enabled.
Analog input
range
Hold last value
function
Input signal
Lower limit
alarm
Channel
conversion value
4 to 20 ㎃ On
3.808
㎃
to 4
㎃
On 0
20
㎃
to 20.192
㎃
0 to 20 ㎃
On
-0.24
㎃
to 0
㎃
On 0
20
㎃
to 20.24
㎃
1 to 5 V On
0.952 V to 1 V
On 0
5 V to 5.048 V
0 to 5 V On
-0.06 V to 0 V
On 0
5 V to 5.06 V
0 to 10 V On
-0.12 V to 0 V
On 0
10 V to 10.12 V
-10 to 10 V On
-10.24 V to -10 V
On 0
10 V to 10.24 V
13.5.7 Setting Function of Channel Output Status
Set the output against stop and abnormal condition of PLC.
(1)
Function
When initialization of module and error of XMC system are happened, use to prevent abnormal output.
(2)
Type