5. RKC COMMUNICATION PROTOCOL
IMR01J08-E1
24
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(Attribute
RO: Read only, R/W: Read and Write)
Name Iden-
tifier
Data range
Factory set
value
Attribute
Set data lock
LK
Least significant digit:
Lock only setting items other than
SV and alarms
(Data 0: Unlock, 1: Lock)
2nd digit:
Lock only alarms
(Data 0: Unlock, 1: Lock)
3rd digit:
Lock only SV
(Data 0: Unlock, 1: Lock)
4th digit:
Engineering
mode
(Data 0: Lock, 1: Unlock)
5th to Most significant digit:
Unused
(“0”fixed)
0 R/W
EEPROM storage
mode
1
EB
0: Backup mode
(Set values are store to the EEPROM)
1: Buffer mode
(No set values are store to the EEPROM)
0 R/W
1
The non-volatile memory (EEPROM) has limitations on the number of memory rewrite times. If the
buffer mode is selected as an EEPROM storage mode, all of the set values changed are not written to
the EEPROM and thus a problem of limitations on the number of memory rewrite times can be
solved. When the memory is used to frequently change the set value via communication, select the
buffer mode.
When selecting any EEPROM storage mode, take notice of the following.
•
If power failure occurs while the buffer mode is selected, the set value returns to the value before
the storage mode is selected.
•
If the buffer mode is changed to the backup mode, all of the set values at that time are stored to
the EEPROM. If necessary to backup the final value of each set item, select the backup mode.
•
When the power is turned on, the backup mode is always set.
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