3: C
OMMUNICATION
S
ETTINGS
3-4 FC6A S
ERIES
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OMMUNICATION
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ANUAL
FC9Y-B1730
Network settings by special data registers
When IP Settings is set to "Use special data registers to configure the IP address" and DNS Settings is set to "Use special data
registers to configure the DNS server addresses" in the function area settings, the values that are set on the FC6A Series
MicroSmart when the FC6A Series MicroSmart power is turned on and when special internal relay M8190 (CPU module network
settings changed trigger) is turned on are stored in the following special data registers.
Checking the network settings
The current FC6A Series MicroSmart IP address, subnet mask, default gateway, and DNS server addresses can be checked with
special data registers.
Special Data Register Description Read/Write
D8304-D8307
The FC6A Series MicroSmart IP address setting value.
Example: When the IP address is 192.168.0.1
D8304=192, D8305=168, D8306=0, D8307=1
R/W
D8308-D8311
The FC6A Series MicroSmart subnet mask setting value.
Example: When the subnet mask is 255.255.255.0
D8308=255, D8309=255, D8310=255, D8311=0
R/W
D8312-D8315
The FC6A Series MicroSmart default gateway setting value.
Example: When the default gateway is 192.168.0.24
D8312=192, D8313=168, D8314=0, D8315=24
R/W
D8316-D8319
The setting value of the preferred DNS server address used by the FC6A Series MicroSmart.
Example: When the preferred DNS address is 192.168.0.100
D8316=192, D8317=168, D8318=0, D8319=100
R/W
D8320-D8323
The setting value of the alternate DNS server address used by the FC6A Series MicroSmart.
Example: When the alternate DNS address is 192.168.0.101
D8320=192, D8321=168, D8322=0, D8323=101
R/W
Special Data Register Description Read/Write
D8330-D8333
The FC6A Series MicroSmart IP address current value.
Example: When the IP address is 192.168.0.1
D8330=192, D8331=168, D8332=0, D8333=1
R
D8334-D8337
The FC6A Series MicroSmart subnet mask current value.
Example: When the subnet mask is 255.255.255.0
D8334=255, D8335=255, D8336=255, D8337=0
R
D8338-D8341
The FC6A Series MicroSmart default gateway current value.
Example: When the default gateway is 192.168.0.24
D8338=192, D8339=168, D8340=0, D8341=24
R
D8342-D8345
The current value of the preferred DNS server address used by the FC6A Series MicroSmart.
Example: When the preferred DNS address is 192.168.0.100
D8342=192, D8343=168, D8344=0, D8345=100
R
D8346-D8349
The current value of the alternate DNS server address used by the FC6A Series MicroSmart.
Example: When the alternate DNS address is 192.168.0.101
D8346=192, D8347=168, D8348=0, D8349=101
R