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3
SPECIFICATIONS
3.2 Function List
3.2.2 Conversion setting for disconnection detection function
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1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
PROCEDURES AND
SETTINGS BEFORE
SYSTEM OPERATION
5
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
6
PROGRAMMING
7
ONLINE MODULE
CHANGE
8
TROUBLESHOOTING
3.2.2 Conversion setting for disconnection detection function
(1) This function is to select a value to be stored in the CH Measured
temperature value (Un\G11 to Un\G18) from "Up scale", "Down scale" or
"Given value" when disconnection is detected.
The Conversion setting for disconnection detection (Un\G164 and
Un\G165) can be set for each channel.
(2) This function is effective for only conversion-enabled channels.
(3) When "Up scale" (0
H) or "Down scale" (1H) is selected, an up scale value
or down scale value of the measurement range to be used is stored.
* 1 RTD type to be used and measurement range are set in the intelligent function module switch
setting. (Refer to Section 4.5.)
(4) When "Given value" (2H) is selected, set a value in the CH Conversion
setting value for disconnection detection (Un\G166 to Un\G173) in units
of 0.1 .
The value set in the buffer memory above is stored in the CH
Measured temperature value (Un\G11 to Un\G18) when disconnection is
detected.
(5) It takes 320ms (maximum) to detect a disconnection state.
Table 3.6 Measured temperature value when disconnection is detected
Setting
Measurement
range
Measured temperature value when
disconnection is detected
RTD type
Setting value
*1
Up scale Down scale
Pt100
0
H
-200 to 850 902.5 -252.5
1
H
-20 to 120 127.0 -27.0
4
H
0 to 200 210.0 -10.0
JPt100
2
H
-180 to 600 639.0 -219.0
3
H
-20 to 120 127.0 -27.0
5
H
0 to 200 210.0 -10.0
Ni100
8
H
-60 to 180 192.0 -72.0