Mitsubishi Electric MELSEC iQ-R Series User Manual page 78

CH1 Input pulse value
The actual number of input pulses is stored as a 32-bit unsigned binary value. It is not converted to a unit pulse number by the
pre-scale function or moving average function. The count type is ring counter.
b31
(1) CH1 Input pulse value (L) (Un\G4)
(2) CH1 Input pulse value (H) (Un\G5)
(3) Data section
The count range is from 0 to 2147483647.
■Buffer memory addresses
The following shows the buffer memory addresses of this area.
Buffer memory name
CH Input pulse value
CH Input pulse value (when Q series-compatible
mode is used)
■Refreshing cycle
After 'CH1 Count enable' (Y18) is turned on to start the count operation, refreshing is performed in a 10ms cycle.
Even if an overflow error (error code: 1900H) occurs, the count operation and the refreshing of this area continue so long as
'CH1 Count enable' (Y18) is on.
■Input pulse value reset
Carrying out the following resets 'CH1 Input pulse value' (Un\G4, Un\G5) to 0.
• Setting 'CH1 Counter reset request' (Un\G386) to Reset request (1).
• Turning off and on 'Operating condition setting request flag' (Y1)
APPX
76
Appendix 3 Buffer Memory Areas
(2)
CH1
4, 5
10, 11
b16 b15
(3)
CH2 CH3 CH4
20, 21 36, 37 52, 53
42, 43 74, 75 106, 107
(1)
CH5 CH6 CH7
68, 69 84, 85 100, 101
138, 139 170, 171 202, 203
b0
CH8
116, 117
234, 235