Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 375

Logging cycle
■Logging cycle setting
Set the logging cycle with 'CH1 Logging cycle setting value' (Un\G537) and 'CH1 Logging cycle unit setting' (Un\G538).
The following table lists the setting range for each cycle.
Setting value of 'CH1 Logging cycle unit setting' (Un\G538)
ms (1)
s (2)
The logging cycle must be an integral multiple of the conversion cycle. Even if the setting is not an integral multiple, the actual
logging cycle is adjusted to the integral multiple of the conversion cycle within a limit of the set logging cycle.
The following table lists the conversion cycle for each temperature conversion method.
Temperature Input type
conversion
method
Sampling Current/Voltage
processing
RTD/Thermocouple
Time average Current/Voltage
RTD/Thermocouple
Count average Current/Voltage
RTD/Thermocouple
Moving average Current/Voltage
RTD/Thermocouple
*1 Values after the decimal point are omitted.
Ex.
With the following settings, the conversion cycle is 240 ms and the actual logging cycle is every 6720 ms (integral multiple of
240 ms).
Item
Conversion enabled channels
CH3 Logging data setting
CH1, 2 average processing specification
CH3 to 8 average processing specification
CH3 Logging cycle setting value
CH3 Logging cycle unit specification
The following values are stored in 'CH3 Logging cycle monitor value' (Un\G841, Un\G842).
Buffer memory address
841
842
Conversion cycle
Conversion speed (1 ms)  Number of channels where the A/D conversion is enabled
Conversion speed (40 ms)  Number of channels where the temperature conversion is enabled
Time set in Time average/Count average/Moving average
Number of A/D conversion enabled channels × Conversion speed (1 ms)
Time set in Time average/Count average/Moving average
Number of temperature conversion enabled channels × Conversion speed (40 ms)
(The count set to CH1 Time average/Count average/Moving average)  (Conversion speed (1ms)  Number of
channels where the A/D conversion is enabled)
(The count set to CH1 Time average/Count average/Moving average)  (Conversion speed (40ms)  Number of
channels where the temperature conversion is enabled)
Conversion speed (1 ms)  Number of channels where the A/D conversion is enabled
Conversion speed (40 ms)  Number of channels where the temperature conversion is enabled
Item
'CH3 Logging cycle monitor value' (Un\G841, Un\G842)
Setting range of 'CH1 Logging cycle setting value' (Un\G537)
• 1 to 32767 (When the input range is "current", and "voltage")
• 40 to 32767 (When the input range is thermocouple, and resistance
temperature detector)
1 to 3600
*1
Setting
CH1 to CH8
Digital output value
Sampling processing (Current)
Sampling processing (Thermocouple)
6950
ms
*1
Number of
Conversion
× A/D conversion ×
speed (1 ms)
enabled channels
Number of
Conversion
temperature conversion
× ×
speed (40 ms)
enabled channels
Stored value
6 (s)
720 (ms)
3 FX5-8AD
3.4 Functions
3
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