Mitsubishi Electric MELSEC iQ-F Series User Manual page 163

■Number of e-mails completed with an error (Un\G4386)
This area stores the accumulated number of communication errors returned when a send request was made to the outgoing
mail server.
• 0: A communication error has not yet been returned from the server, or a send request has not yet been made.
• 1 or greater: Accumulated number of communication errors
DNS setting
■DNS server address 1 (Un\G4390 to Un\G4391)
This area stores DNS server address 1.
• 0.0.0.1 to 223.255.255.254
■DNS server address 2 (Un\G4392 to Un\G4393)
This area stores DNS server address 2.
• 0.0.0.1 to 223.255.255.254
■DNS server address 3 (Un\G4394 to Un\G4395)
This area stores DNS server address 3.
• 0.0.0.1 to 223.255.255.254
■DNS server address 4 (Un\G4396 to Un\G4397)
This area stores DNS server address 4.
• 0.0.0.1 to 223.255.255.254
DNS setting change function
■DNS setting storage area write request (Un\G4398)
When this area is changed from 0 to 1, the DNS settings stored in the DNS server address areas (Un\G4390 to Un\G4397)
are written to the external flash ROM.
• 0: No write request
• 1: Requesting write
■DNS setting storage area write status (Un\G4399)
This area stores the DNS setting write request result.
DNS setting storage area write completed (Un\G4399.b0)
The status will be 1 (Completed) when writing to the DNS setting storage area completes or fails.
The status will be 0 (Not completed) when DNS setting storage area write request (Un\G4398) is changed from 1 to 0.
• 0: Not completed
• 1: Completed
DNS setting storage area write error (Un\G4399.b1)
The status will be 1 (Error) when writing to the DNS setting storage area fails.
Also, the status will be 1 (Error) if there is a problem in contents of the DNS setting storage area when the power supply is
turned from off to on.
The status will be 0 (Normal) when 'DNS setting storage area write request' (Un\G4398) is changed from 1 to 0.
• 0: Normal
• 1: Error
■DNS setting storage area clear request (Un\G4400)
When this area is changed from 0 to 1, the DNS settings are cleared from the external flash ROM.
• 0: No clear request
• 1: Requesting clear
APPX
Appendix 4 Buffer Memory
A
161