Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 464

■Operation of the logging hold processing
• When Disable (0) is set to 'CH1 Level trigger condition setting' (Un\G540), the logging hold processing starts by turning
offon 'CH1 Logging hold request' (Un\G471).
• When a value other than Disable (0) is set to 'CH1 Level trigger condition setting' (Un\G540), the logging hold processing
starts after 'CH1 Logging hold request' (Un\G471) is turned offon and the set level trigger condition is satisfied. When the
level trigger is enabled, use this buffer memory area as an interlock condition to operate the level trigger.
• If 'CH1 Logging hold request' (Un\G471) is turned onoff during the logging hold processing, the hold (stop) status is
cleared and the logging restarts.
■Default value
The default value is off (0).
The stop status of the logging can be checked with 'CH1 Logging hold flag' (Un\G409).
CH1 Conversion value shift amount
Set 'CH1 Conversion value shift amount' (Un\G472) used for the shift function.
The digital operation value to which the conversion value shift amount is applied is stored in 'CH1 Digital operation value'
(Un\G402).
For details on the shift function, refer to the following.
Page 348 Shift function
b15 b14 b13 b12 b11 b10 b9
(2)
(1) Data section
(2) Sign bit 0: Positive, 1: Negative
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH Conversion value shift amount
CH Conversion value shift amount (In FX2N allocation mode
function)
■Setting range
The possible setting range is from -32768 to +32767.
■Enabling the setting
The set value is added to the CH1 Digital operation value regardless of the OFFONOFF status of 'Operating condition
setting request' (Un\G70, b9).
■Default value
The default value is set to 0.
CH1 Maximum value reset request
When resetting the maximum value, and updating with the current value, turn offon.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH Maximum value reset request
■Enabling the setting
When 'CH1 Maximum value reset request' (Un\G473) turns offon, 'CH1 Maximum value' (Un\G404) is reset regardless of
turning offonoff of 'Operating condition setting request' (Un\G70, b9), and updated with the current value.
APPX
462
Appendix 12 Buffer Memory Areas
b8 b7 b6 b5 b4 b3 b2
(1)
CH1
472
61
CH1
473
b1 b0
CH2 CH3 CH4
672 872 1072
62 63 64
CH2 CH3 CH4
673 873 1073
CH5 CH6 CH7
1272 1472 1672
65 66 67
CH5 CH6 CH7
1273 1473 1673
CH8
1872
68
CH8
1873