Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 130

CH1 Decimal point position
Depending on the setting of 'CH1 Input range' (Un\G501), the decimal point position applicable in the following buffer memory
areas is stored in this area.
• 'CH1 Temperature process value (PV)' (Un\G402)
• 'CH1 Set value (SV) setting' (Un\G430)
• 'CH1 Proportional band (P) setting' (Un\G431)
• 'CH1 Alert set value 1 to 4'(Un\G434 to 437)
• 'CH1 Cooling proportional band (Pc) setting' (Un\G439)
• 'CH1 Upper limit setting limiter' (Un\G511)
• 'CH1 Lower limit setting limiter' (Un\G512)
• 'CH1 Setting change rate limiter' (Un\G513)
• 'CH1 Adjustment sensitivity (dead band) setting' (Un\G516)
• 'CH1 Overlap/dead band setting' (Un\G524)
• 'CH1 Alert dead band setting' (Un\G531)
• 'CH1 Loop disconnection detection dead band' (Un\G538)
• 'CH1 AT bias' (Un\G546)
• 'CH1 Sensor correction value setting' (Un\G565)
Stored values depend on the setting in 'CH1 Input range' (Un\G501).
'CH1 Input range' (Un\G501)
When the resolution is 1
When the resolution is 0.1
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
CH Decimal point position
CH Decimal point position (If using FX3 allocation mode)
*1 For details, refer to Page 134 CH1 Event.
CH1 Alert definition
Bits corresponding to alerts detected turn ON.
Bit No.
b0
b1
b2 to b7
b8
b9
b10
b11
b12
b13
b14
b15
APPX
128
Appendix 4 Buffer Memory Areas
Stored value
0
1
Flag name
CH1 Input range upper limit
CH1 Input range lower limit

CH1 alert 1
CH1 alert 2
CH1 alert 3
CH1 alert 4
CH1 Heater disconnection
detection
CH1 Loop disconnection
detection
CH1 Output off-time current error

CH1 CH2
400 600
*1
1 (b12) 2 (b12)
Alert definition
When the temperature process value (PV) has exceeded the temperature measuring
range of the set input range.
When the temperature process value (PV) is below the temperature measuring range
of the set input range.

When Alert 1 has occurred. (Page 54 Alert Function)
When Alert 2 has occurred. (Page 54 Alert Function)
When Alert 3 has occurred. (Page 54 Alert Function)
When Alert 4 has occurred. (Page 54 Alert Function)
When a heater disconnection has been detected. (Page 63 Heater Disconnection
Detection Function)
When a loop disconnection has been detected. (Page 61 Loop Disconnection
Detection Function)
When an output off-time current error has been detected. (Page 63 Output OFF-
time Current Error Detection Function)

Setting details
No decimal point
First decimal place
CH3
800
*1 *1
3 (b12)
CH4
1000
*1
4 (b12)