Omron SYSMAC C200H-IDS01-V1 Operation Manual page 42

The User Program
Command
Management of the number
of writing operations
Command Processing
Management of
Overwriting Operations 2
Add an appropriate number (up to 255 (00FF)) to the data of the address des-
ignated by the user in order to judge if the address has been overwritten
100,000 times. If 0 (0000) is added, only the life of the address will be
checked. The number of command data words is fixed at 5.
15
M
4 D 4
L
4 C 3
*
2 A 0
Note Designate the first address on the EEPROM DC so that the terminator will be
___0 to ___5 or ___8 to ___D, otherwise an address error will result.
When the command is executed and the address is found to have been over-
written 100,000 times, the DC warning bit will be turned ON.
Overwriting operation management area consists of three bytes from the first
address, to which the appropriate number (up to 255 (00FF)) that the user
designates is added. If the result is larger than 100,000, the DC warning bit
will be turned ON. If the area has been overwritten 100,000 times, the value in
the overwriting operation management area will not be renewed.
By counting the number of writing operations, it is possible to detect if the DC
with EEPROM has been overwritten for the number of operations set by the
user.
00
Memory management command
D
4
1 R/W Head no. (fixed to 1)
1
Designates the first address of the management area
within the range 0000 through FFFF (see note).
Designates the number of adding operations
within the range 0000 through 00FF.
Terminator
D
First address
Upper digit
Middle digit
Lower digit
Section 2-3
3 bytes
27