Mitsubishi Electric MELSEC iQ-R Series User Manual page 222

■Correspondence between each bit and flag
The following table shows the correspondence between each bit in this buffer memory area and each flag.
Bit No.
b0
b1
b2
b3
b4
b5
b6
b7
Feed forward value memory read completion flag
This flag shows whether reading of data from the following buffer memory areas has been completed successfully or has
failed.
• 'CH1 Feed forward value memory read command' (Un\G441)
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
Feed forward value memory read completion flag
Feed forward value memory read completion flag (in the Q compatible mode)
■Correspondence between each bit and flag
The following table shows the correspondence between each bit in this buffer memory area and each flag.
Bit No.
b0
b1
b2
b3
■Timing of turning ON/OFF of this flag to 'CH1 Feed forward value memory read command'
(Un\G441)
The following figure shows the timing of turning ON/OFF of this flag to 'CH1 Feed forward value memory read command'
(Un\G441). (For CH1)
CH1 Memory's PID constants read
command (Un\G440)
CH1 Read completion flag
(Un\G46, b0)
CH1 Read failure flag
(Un\G46, b8)
CH1 Read failure flag (Un\G48, b8) turns OFF after reading of data in the channel 1 is completed successfully.
When reading of data from the memory has failed, CH1 Read failure flag (Un\G48, b8) turns ON and the temperature control
module operates with the feed forward value before reading of data. (The LED status remains.).
APPX
220
Appendix 3 Buffer Memory Areas
Details of flag
CH1 Read completion
CH2 Read completion
CH3 Read completion
CH4 Read completion
CH1 Write completion
CH2 Write completion
CH3 Write completion
CH4 Write completion
Details of flag
CH1 Read completion
CH2 Read completion
CH3 Read completion
CH4 Read completion
0 0
1
ON
OFF
OFF
Read completion
Bit No.
b8
b9
b10
b11
b12
b13
b14
b15
CH1 CH2
48
1417
Bit No.
b8
b9
b10
b11
1 0
ON
Read failure
Details of flag
CH1 Read failure
CH2 Read failure
CH3 Read failure
CH4 Read failure
CH1 Write failure
CH2 Write failure
CH3 Write failure
CH4 Write failure
CH3 CH4
Details of flag
CH1 Read failure
CH2 Read failure
CH3 Read failure
CH4 Read failure
1 0
ON
Read completion