Mitsubishi Electric FR-E800 Instruction Manual (Communication page 134

 Communication speed and full-duplex/half-duplex selection (Pr.1426)
Use Pr.1426 Link speed and duplex mode selection to set the communication speed and the full-duplex or half-duplex
system. If the operation is not performed properly in the initial setting (Pr.1426 = "0"), set Pr.1426 according to the
specifications of the connected device.
Communication
Pr.1426 setting
speed
Automatic
0 (initial value)
negotiation
1 100 Mbps
2 100 Mbps
3 10 Mbps
4 10 Mbps
 IP filtering function (Ethernet) (Pr.1442 to Pr.1448)
• Set the IP address range for connectable network devices (Pr.1442 to Pr.1448) to limit the connectable devices. The
setting range for IP address of connectable network devices depends on the settings in Pr.1443 and Pr.1446, Pr.1444 and
Pr.1447, and Pr.1445 and Pr.1448. (Either of the settings can be larger than the other in Pr.1443 and Pr.1446, Pr.1444
and Pr.1447, and Pr.1445 and Pr.1448.)
[Setting example 1]
IP filter address (Ethernet)
IP filter address range specification
(Ethernet)
In this case, the IP address range in which Ethernet communication is permitted is "192.168.x (1 to 3).xxx (100 to 150)".
[Setting example 2]
IP filter address (Ethernet)
IP filter address range specification
(Ethernet)
In this case, the IP address range in which Ethernet communication is permitted is "192.168.2.xxx (50 to 100)".
• When Pr.1442 to Pr.1445 = "0 (initial value)", the function is invalid.
• When "9999 (initial value)" is set in Pr.1446 to Pr.1448, the range is invalid.
CAUTION
• The IP filtering function (Ethernet) (Pr.1442 to Pr.1448) is provided as a means to prevent unauthorized access, DoS
attacks, computer viruses, or other cyberattacks from external devices, but the function does not prevent such access
completely. In order to protect the inverter and the system against unauthorized access by external systems, take
additional security measures. We shall have no responsibility or liability for any problems involving inverter trouble and
system trouble by DoS attacks, unauthorized access, computer viruses, and other cyberattacks. The following are
examples of measures to prevent them.
- Install a firewall.
- Install a personal computer as a relay station, and control the relaying of transmission data using an application
program.
- Install an external device as a relay station to control access rights. (For the details of external devices used to control
access rights, contact the distributors of the external devices.)
Full-duplex/half-
duplex system
The communication speed and the communication mode (half-duplex/full-
Automatic duplex) are automatically negotiated to ensure the optimum setting. To set
negotiation automatic negotiation, auto negotiation setting is required also in the master
station.
Full duplex —
Half duplex —
Full duplex —
Half duplex —
Pr.1442 Pr.1443
192 168
The range is between
the values set in both
parameters.
Pr.1446
― 9999
Pr.1442 Pr.1443
192 168
The range is between
the values set in both
parameters.
Pr.1446
― 9999
Remarks
Pr.1444 Pr.1445
1 100
The range is between
the values set in both
parameters.
Pr.1447 Pr.1448
3 150
Pr.1444 Pr.1445
2 100
Pr.1447 Pr.1448
9999 50
133
2. Ethernet Communication
2.11 EtherNet/IP
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