Mitsubishi Electric MELSEC iQ-R User Manual page 70

Differences of each logging function
The following tables list differences between the normal logging function and the continuous logging function.
• Combination with each function
: Available, : Restricted use, : Not available
Function
Conversion cycle
A/D conversion method
Scaling function
Digital clipping function
Shift function
Difference conversion
function
Warning output function
Input signal error detection
function
Logging read function
Interrupt function
• Specifications of each logging function
Specifications of a
logging function
Logging start timing
Logging stop timing
Number of logging data
points
Storage of logging data
1 FUNCTIONS
68
1.13 Using One of the Logging Functions Depending on the Intended Use
Logging function
Normal logging Continuous logging
function function
(simultaneous
conversion mode)
Depends on the A/D 5s/4CH
conversion method
  (Only sampling processing and moving average)
 
 
 
 
  (Only process alarms)
 
 
  (Only continuous logging
data storage)
Logging function
Normal logging Continuous logging
function function
(simultaneous
conversion mode)
• When 'Operating condition When the next conversion
setting request' (Y9) is cycle has come after
turned on and off after 'Continuous logging start/
'CH1 Logging enable/ stop request' (Un\G100) is
disable setting' (Un\G535) changed from Stop (0) to
is set to Normal logging (0) Start (1)
• When 'CH1 Logging hold
request' (Y1) is turned off
(when the logging is
stopped due to a hold
trigger generation)
• When data collection for When the next conversion
the preset number of cycle has come after
logging data points is 'Continuous logging start/
completed after a hold stop request' (Un\G100) is
trigger generation changed from Start (1) to
• When 'Operating condition Stop (0)
setting request' (Y9) is
turned on
Collects data of 0 to 90000 Collects data of 10000 points for each channel
points for each channel
Stores data of 1 point at Stores data of 5000 points
every set logging cycle collectively in the logging
data areas after logging all
the data (5000 points)
Continuous logging High speed continuous
function logging function
(inter-module
synchronization mode)
■Oversampling disable
1s/CH
Inter-module synchronization
cycle/4CH
■Oversampling enable
5s/4CH
 
 
 
 

 
 
  (Only continuous logging
data storage)
Continuous logging High speed continuous
function logging function
(inter-module
synchronization mode)
When the second inter- Within 40s after 'CH1 High
module synchronization cycle speed continuous logging
has come after 'Continuous start/stop request' (Un\G478)
logging start/stop request' is set from Stop (0) to Start
(Un\G100) is changed from (1)
Stop (0) to Start (1)
• When the second inter- Within 40s after 'CH1 High
module synchronization speed continuous logging
cycle has come after start/stop request' (Un\G478)
'Continuous logging start/ is set from Start (1) to Stop
stop request' (Un\G100) is (0)
changed from Start (1) to
Stop (0)
• When the state of CPU
module is changed from
RUN to STOP
Collects data of 20000 points
for each channel
Stores data at every inter- Stores data of 10000 points
module synchronization cycle collectively in the logging
from the next cycle after data data areas after logging all
logging is started by a the data (10000 points)
synchronous signal