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MELSEC-F
COMMUNICATION PROCEDURE5
5 - 12
(3) Operation for re-initialization
Operation for re-initialization differs as follows, depending on the value written to
BFM#1600.
*1: When re-reading the flash ROM, the re-initialization is performed in the same status as
when the power supply is turned on.
NOTE
It is possible to change the operational settings when re-initializing by a sequence
program.
: Valid, : Invalid
Written value
Operation
COM. ERR LED
Re-reading flash ROM
*1
0001H
Turns off
Not re-read
0002H Re-read
0005
H
No change
Not re-read
0006H Re-read
POINT
Please keep the following points in mind when re-initializing the Ethernet module.
(Failure to do so may cause errors in the data communication with the external
devices.)
(1) Be sure to end all current data communication with external devices and
close all connections before re-initializing.
(2) Be sure to reset external devices if the IP address of the Ethernet module has
been changed. (If an external device maintains the Ethernet address of a
device with which it communicates, the communication may not work after the
IP address of the Ethernet module has been changed.)
Parameter setting item BFM number [decimal] Parameter changes Reference section
Operational settings 24 Section 4.6
Initial
settings
Timer setting
4 to 12 Section 5.2
DNS settings
— Section 5.2
Open settings 32 to 39 Section 5.5
Router relay parameter
settings
512 to 515 Section 5.3
E-mail settings 9856 to 10306
Chapter 10
Send mail address
setting
9987 to 10306