Mitsubishi MELSEC iQ-F, User Manual

Page: 137 / 182

APPX
Appendix 4 Buffer Memory Areas
135
A
Mode switching setting
Set a setting value for the mode to be switched.
When a value out of the above is written and 'Operating condition setting request' (Un\G70, b9) is turned
off
→
on
→
off, the mode setting is not performed and only the operating condition is changed.
■
Buffer memory address
The following shows the buffer memory address of this area.
■
Enabling the setting
Turn off
→
on 'Operating condition setting request' (Un\G70, b9) to enable the setting.
■ After the mode is switched
When the mode is switched, this area is cleared to 0 and 'Operating condition setting completed flag' (Un\G69, b9) turns off.
After checking that 'Operating condition setting completed flag’ (Un\G69, b9) is off, turn off 'Operating condition setting
request' (Un\G70, b9).
Rate alarm change rate selection
Select rate alarm change rate. "Rate specification" that sets the rate alarm upper limit value and the rate alarm lower limit
value in units of 0.1% with respect to (the maximum value of the digital output value) - (the minimum value of the digital output
value), and "Digital output value specification" that sets in units of digits for the range of digital output values, can be selected.
When setting to a value other than the above table, it operates with digital output value specification (1).
■
Buffer memory address
The following shows the buffer memory address of this area.
■ Enabling the setting
Turn off → on 'Operating condition setting request' (Un\G70, b9) to enable the setting.
■
Default value
Digital output value specification (1) is set.
Switching mode Setting value
Buffer memory address 296 297
Normal mode 4658H 4144H
Offset/gain setting mode 4144H 4658H
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Mode switching setting 296, 297
Mode switching setting (in FX2N allocation mode function) 126, 127
Setting value Description
0 Rate specification
1 Digital output value specification
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Rate alarm change rate selection 299
Rate alarm change rate selection (in FX2N allocation mode
function) 130