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WM: Write Mode to EEPROM
This parameter decides if the parameters, programs and the setting of control inputs and outputs
shall be backed up to the EEPROM.
◊ Refer to “6.3.5. RS-232C Communication Positioning Operation” for details.
◊ The EEPROM has the limitation on the frequency of writing and deleting.
(Approximately 100 000 times) Frequent back up of the settings may shorten the
operation life of the EEPROM. The parameter WM selects the necessity of backup.
Category Parameter
Format
WM data
Data range 1 0
: Back up to the EEPROM.
Data range 2 1
: Not back up.
Shipping set 0
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Caution :• When the setting o the WM is changed to WM1 (Not back up) to WM0
(Back up to the EEPROM), it may requires approximately 40 seconds
to write the all current settings to the EEPROM. If the control power is
turned off during backing up, the alarm E2 (ROM error) may occur.
• The System initializes the backed up data to the EEPROM at the
execution of the command SI (Set initial parameter) even the
parameter is set to WM1 (Not back up).
WO: Power on Counter Monitor
This monitor reads out the number of turned on times of the control power.
The power on counter is used for the time stamp to record the history of alarm occurrence.
◊ Refer to “7.3.2.2. Monitor for Alarm History and Event: Monitor TA/HI” for details.
Category Monitor
Format
WO
Data range 0 to 214 748 364 [times]
WTC: (Application use only)
This parameter is only used for the EDC MegaTerm. Do not change the setting.
WTH: (Application use only)
This parameter is only used for the EDC MegaTerm. Do not change the setting.
WTS: (Application use only)
This monitor is used only for the EDC MegaTerm.
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