Mitsubishi MELSEC iQ-F, User Manual

Page: 139 / 182

APPX
Appendix 4 Buffer Memory Areas
137
A
CH1 Digital operation value
When the digital clipping function, scaling function, shift function are used, digital values to which the digital clipping, scale
conversion, and shift-and-add were performed are stored in 16-bit signed binary in the digital operation value.
■
Buffer memory address
The following shows the buffer memory address of this area.
When not using the digital clipping function, scaling function, and shift function, the same value as 'CH1 Digital
output value' (Un\G400) is stored.
CH1 Maximum value
The maximum value of the digital operation value is stored in 16-bit signed binary value.
In the following cases, 'CH1 Maximum value' (Un\G404) is updated with the current value.
• When 'Operating condition setting request' (Un\G70, b9) is turned off
→
on
→
off, and the setting is changed
• When 'CH1 Maximum value reset request' (Un\G473) is turned off
→
on
→
off
■
Buffer memory address
The following shows the buffer memory address of this area.
■
Refreshing cycle
The value is updated every conversion cycle.
• For the channel to which the averaging processing is specified, the maximum and minimum values are
stored at every averaging processing time.
• When the scaling function, shift function, and digital clipping function are used, values calculated by each
function are stored in Maximum value and Minimum value.
(1) Data section
(2) Sign bit 0: Positive, 1: Negative
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH  Digital operation value 402 602 802 1002 1202 1402 1602 1802
CH  Digital operation value (in FX2N allocation mode
function)
10 11 12 13 14 15 16 17
(1) Data section
(2) Sign bit 0: Positive, 1: Negative
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH  Maximum value 404 604 804 1004 1204 1404 1604 1804
CH  Maximum value (In FX2N allocation mode function) 111 112 113 114 115 116 117 118
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b0 b1 b2 b3 b4
(1) (2)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b0 b1 b2 b3 b4
(1) (2)