Mitsubishi Electric MELSEC iQ-R Series User Manual page 292

CH1 Loop disconnection detection dead band
Set the non-alert area having the set value (SV) at the center (temperature width in which no loop disconnection is detected)
to prevent accidental alerts of the loop disconnection detection.
Temperature process value (PV)
Set value
(SV)
(1) 'CH1 Loop disconnection detection dead band' (Un\G538) (this band has the set value (SV) at the center.)
For details on the loop disconnection detection function, refer to the following:
Page 91 Loop Disconnection Detection Function
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Loop disconnection detection dead band
CH Loop disconnection detection dead band (in the Q compatible mode)
■Setting range
Input range
Ex.
When the following values have been set in the buffer memory areas:
• 'CH1 Input range' (Un\G501): 38 (Resolution: 0.1)
• 'CH1 Loop disconnection detection dead band' (Un\G538): 50
(Loop disconnection detection dead band setting value)  (Resolution) = 50  0.1 = 5.0
Within the range of the set value (SV) 5.0, the loop disconnection detection judgment is not executed.
■Setting unit
The value to be set differs depending on the value stored in 'CH1 Decimal point position' (Un\G400).
• No decimal point (0): Set a value in increments of 1 ( or digit).
• First decimal place (1): Set a value (the value multiplied by 10) in increments of 0.1 ().
■Default value
The default value is 0.
APPX
290
Appendix 3 Buffer Memory Areas
Non-alert area
(1)
Time
CH1
538
60
CH2 CH3
738 938
92 124
CH4
1138
156