54
Converting from Previous Models Section 2-12
If the format change is from ETN11 mode to ETN21 mode, then there will be
no effect on previous applications. If the change is from ETN21 mode to
ETN11 mode, however, then certain limitations will go into effect.
The following table shows the limitations that apply when operating in ETN11
mode.
Note (1) These limitations do not apply when the CPU Bus Unit System Setup
Area format is in ETN21 mode.
(2) When I/O tables are created using one of the new Ethernet Unit models,
the CPU Bus Unit System Setup Area format is in ETN21 mode from the
beginning.
Item Specifications in ETN11 mode
Baud rate • Automatic detection (100Base-TX or
10Base-T)
FINS node address setting range • 1 to 254
IP address conversion: Automatic
generation method
• Dynamic only
TCP keep-alive • No time setting (Uses default setting)
FINS/TCP • Server only for all connections (Uses default
setting)
TCP socket services • Socket option (keep-alive setting): Yes
• Number of Bytes Received at TCP Socket
Nos. 1 to 8: Yes
• Data Received Flag: Yes
FTP server function • Port No. setting: No (Uses default setting)
Mail send function • The specifications for previous Units apply.
• The mail transmission status is as follows:
• Status of user mail transmission → Status
of transmission condition setting 5
• Status of periodic mail transmission → Sta-
tus of transmission condition setting 6
• Status of mail transmission when error
occurs → Status of transmission condition
setting 7
Mail receive function • Cannot be used
Automatic clock adjustment function • Cannot be used
DNS server host name • Cannot be used
