Mitsubishi Electric FX3U-ENET User Manual page 67

4 SETTINGS AND PROCEDURES PRIOR TO OPERATION
4 - 11
(2) TCP Existence confirmation setting (BFM #24 b4)
Select the existence check method for TCP communication.
For the existence check function, refer to Subsection 5.2.2.
Name of setting
Use the KeepAlive
Use the Ping
POINT
(1) "Operational settings" parameters must always be set.
If the settings are changed, the power to the PLC and the Ethernet module
must be turned off once and then turned on again.
(2) If re-initialization of the Ethernet module is required due to the occurrence of
an error, perform re-initialization using a sequence program.
NOTE
When adjusting settings with FX Configurator-EN, select "Operating Settings" at the
initial screen and adjust the settings at the "Ethernet Operating Settings" screen.
(3) Send frame setting (BFM #24 b5)
(a) Select the frame of the Ethernet header for the data link layer to be sent by
the Ethernet module.
Setting item
Ethernet (V2.0)
IEEE802.3
(b) When receiving data from the external device, reception should occur
regardless of whether the Ethernet frame or IEEE802.3 frame is used
NOTE
(1) Transmission using Ethernet frames is generally recommended.
(2) When communication with the external device fails, check whether or not
communication is possible using a PING command.
Description of setting
Checks connection status with KeepAlive.
Checks connection status with Ping.
Description of setting
Transmits using an Ethernet frame.
Transmits using an IEEE802.3 frame.
MELSEC-F
4 - 11