Mitsubishi Electric MELSEC iQ-R User Manual page 204

CH1 Maximum value, CH1 Minimum value
Medium speed
The maximum value and minimum value of digital operation values or digital output values are stored as 16-bit signed binary
values.
In the following cases, 'CH1 Maximum value' (Un\G404) and 'CH1 Minimum value' (Un\G406) are updated with the current
values.
• When 'Operating condition setting request' (Y9) is turned on and off and the setting is changed
• When 'Maximum value/minimum value reset request' (YD) is turned on and off
■Stored value
The value to be stored varies depending on the mode.
Mode
Normal mode (medium speed: 10s/CH)
Normal mode (low speed: 20s/CH)
Simultaneous conversion mode
Inter-module synchronization mode
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH Maximum value
CH Minimum value
• 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, digital clipping function, or difference conversion function is used,
values calculated by each function are stored in Maximum value and Minimum value.
CH1 Difference conversion status flag
Medium speed
The difference conversion status can be checked.
Monitored value
0
1
When the difference conversion starts after 'CH1 Difference conversion trigger' (Un\G470) is changed from No request (0) to
Trigger request (1), 'CH1 Difference conversion status flag' (Un\G408) turns to Converting difference (1).
When 'CH1 Difference conversion trigger' (Un\G470) is changed from Trigger request (1) to No request (0), 'CH1 Difference
conversion status flag' (Un\G408) is changed from Converting difference (1) to Not converted (0).
'CH1 Difference conversion status flag' (Un\G408) is Converting difference (1) during the difference conversion; Not
converted (0) while the difference conversion is not in process.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH Difference conversion status flag
APPX
202
Appendix 3 Buffer Memory Areas
Simultaneous
Low speed
conversion
Stored value
The maximum and minimum values of the digital operation values are stored.
The maximum and minimum values of the digital output values are stored.
Low speed
Synchronization
CH1 CH2
404 604
406 606
Description
Not converted
Converting difference
CH1 CH2
408 608
CH3 CH4
804 1004
806 1006
CH3 CH4
808 1008