Mitsubishi Electric MELSEC-Q series User Manual page 65

(4) Starting logging
Turn on then off Operating condition setting request (Y9). Data is logged in set logging cycle.
(5) Stopping logging
Use a hold trigger to stop logging. When the hold trigger is detected, the CT input module stops logging after the
number of logging data set in advance were collected.
The logging stopping method is as below.
1.
Set ON (1) to CH Logging hold request (Un\G1008 to Un\G1015).
When Disable (0) is set to CH Level trigger condition setting (Un\G1056 to Un\G1063), the set number
of logging data are collected and the logging stops.
When CH Level trigger condition setting (Un\G1056 to Un\G1063) is set to Above (1), Below (2), or
Pass through (3), the set number of logging data are collected after the conditions of CH Trigger data
(Un\G1064 to Un\G1071) and CH Trigger setting value (Un\G1082 to Un\G1089) are satisfied, and the
logging stops.
● When Operating condition setting request (Y9) is turned on, the logging stops regardless of ON or OFF of the hold trigger.
All the logging data stored before Operating condition setting request (Y9) is turned on are cleared.
● Check that CH Logging hold flag (Un\G1016 to Un\G1023) turned ON (1), and set OFF (0) to CH Logging hold
request (Un\G1008 to Un\G1015). If CH Logging hold request (Un\G1008 to Un\G1015) is set OFF (0) before hold, the
logging does not stop.
● After CH Logging hold request (Un\G1008 to Un\G1015) is set ON (1), the following delay occurs at the maximum until
the CT input module receives a hold trigger.
Trigger delay = Logging cycle (Cycle at which the logging is actually performed) + Scan time of CPU module
When CH Level trigger condition setting (Un\G1056 to Un\G1063) is set to Disable (0) and CH1 Digital
Ex.
output value (Un\G11) is logged
CH1 Logging hold request
(Un\G1008)
CH1 Logging data
(Un\G5000 to Un\G9999)
OFF (0)
The data stored before the last
5000 data are discarded.
CH1 Number of logging data
Controlled by the CT input module
ON (1)
A Hold trigger is
The logging is held.
executed.
CH1 Logging points after
trigger (Un\G1048)
5000 points
(Un\G1106)
CHAPTER 4 FUNCTIONS
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