Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 132

Input signals
A state of an analog input module can be checked in the buffer memory area.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Input signals
Input signal (In FX3 allocation mode function)
■List of input signals
Buffer Memory Areas
b0
b1 to 4
b5
b6
b7
b8
b9
b10
b11
b12
b13
b14
b15
■Module READY (b0)
Module READY (X0) turns on to indicate the preparation for the A/D conversion is completed after the power-on or reset of the
CPU module, and the A/D conversion is performed.
In the following cases, 'Module READY' turns off.
• In the offset/gain setting mode (In this case, the A/D conversion is performed.)
• When a watchdog timer error has occurred in the analog input module (In this case, the A/D conversion is not performed.)
■Offset/gain initialization completed flag (b5)
• Use as an interlock condition to turn offonoff 'Offset/gain initialization request' (Un\G70, b5).
• Offset/gain initialization is not be performed unless 'Offset/gain initialization enabled code '(Un\G305) is set to E20FH.
• It is possible to perform offset/gain initialization in offset/gain setting mode only.
• When 'Offset/gain initialization request' (Un\G70, b5) is off, 'Offset/gain initialization complete flag' (Un\G69, b5) turns off.
Offset/Gain setting offset value
Offset/Gain setting gain value
'Offset/gain initialization completed flag'
(Un\G69, b5)
'Offset/gain initialization request'
(Un\G70, b5)
APPX
130
Appendix 4 Buffer Memory Areas
CH1
69
69
Description
Module READY
Use not allowed
Offset/gain initialization completed flag
Use not allowed
Use not allowed
Warning output signal
Operating condition setting completed flag
Offset/gain setting mode status flag
Channel change completed flag
Input signal error detection signal
Range switching complete flag
A/D conversion completed flag
Error flag
Controlled by the analog input module
Controlled by the program
Value other than initial value
Value other than initial value
OFF
OFF
CH2 CH3
Initial value
Initial value
CH4