Mitsubishi Electric MELSEC iQ-F Series User Manual page 46

■Operation to write to the DNS setting storage area
Store the new IP addresses of the DNS servers in the DNS server address areas (Un\G4390 to Un\G4397) and turn 'DNS
setting storage area write request' (Un\G4398) from 0 to 1. This causes the addresses to be written to the DNS server setting
storage area.
Buffer memory
Un\G4390
DNS server 1
address
Un\G4391
Un\G4392
DNS server 2
address
Un\G4393
Un\G4394
DNS server 3
address
Un\G4395
Un\G4396
DNS server 4
address
Un\G4397
The following table lists data items to be written into the DNS setting storage area.
Item name
DNS server 1 address
DNS server 2 address
DNS server 3 address
DNS server 4 address
■Operation to clear the DNS setting storage area
Turn 'DNS setting storage area clear request' (Un\G4400) from 0 to 1 and power off and on the system or reset the CPU
module. This clears the DNS setting storage area (disables the DNS setting change function).
Ex.
The following figure shows a case where the IP addresses of DNS servers 1 to 4 are set from the module parameters to the
Ethernet module, resulting in the IP addresses of DNS servers 1 to 4 being set to 192.0.2.1 to 192.0.2.4.
Ethernet module
DNS server 1 address
DNS server 2 address
DNS server 3 address
DNS server 4 address
Values in the module parameters are set.
4 FUNCTION LIST
44
4.3 Other Functions
DNS setting storage area
DNS server 1
address
DNS server 2
address
DNS server 3
Writing data
address
DNS server 4
address
192.0.2.1
192.0.2.2
192.0.2.3
192.0.2.4
Description
Set the IP address of DNS server 1.
Set the IP address of DNS server 2.
Set the IP address of DNS server 3.
Set the IP address of DNS server 4.
Module parameter
DNS server 1 address
DNS server 2 address
DNS server 3 address
DNS server 4 address
DNS setting storage area
DNS server 1 address
DNS server 2 address
DNS server 3 address
DNS server 4 address
192.0.2.1
192.0.2.2
192.0.2.3
192.0.2.4
0: CLEAR