5 - 12
MELSEC-F
COMMUNICATION PROCEDURE
5
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
0001
H
Turns off
Not re-read
0002
H
Re-read
0005
H
No change
Not re-read
0006
H
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
20505 to 20512
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
