Mitsubishi Electric Melsec Q Series User Manual page 76

3 COMMUNICATIONS VIA OTHER NETWORKS
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(1) Station No. <-> IP information system (conversion method) (address:
4 ... b7, b6)
H
(a) There are four kinds of Station No. <-> IP information methods as shown
below.
(b) Select one of them according to Section 3.3.2 and make sure to set the
values on this screen using the method selected. (The default conversion
method is the Automatic response method.)
Conversion method
Automatic response system
IP address computation system
Table exchange system
Use-together system
(2) Net mask pattern (address: 3A9
Designate the mask value based on the guidelines given below. This pattern is
used in a logical sum with the local station's IP address when calculating the IP
address of the external device using the IP address computation system.
(a) When setting the sub-net mask, designate the target settings of the IP
address class, network address, and sub-net address so that all bits are "1"
in the mask pattern.
The mask pattern is designated with a decimal/hexadecimal value
obtained by dividing the 32-bit mask value into 8-bit segments.
(b) When the sub-net mask is not designated, the mask pattern designation is
not necessary.
When the mask pattern is not designated, the following mask value is
used as the mask pattern according to the local station IP Address class.
Class
Class A
Class B
Class C
(3) Conversion setup (conversion information) (address: 229
(a) The conversion setting is required to obtain the IP address from the Network
No. and station number using the table exchange system.
(b) If the local station is an Ethernet module and the next station to which the
communication request /response message is passed to access other
station is also an Ethernet module, designate the Network No., station
number, and IP address of the next station's Ethernet module.
Specify the values set on the network parameter setting screen.
(c) Designate the Network No. in the range of 1 to 239 (1
station number in the range of 1 to 64 (1
Parameter settings requirement
Net mask pattern
)
H
Mask value used
FF. 00. 00. 00
FF. FF. 00. 00
FF. FF. FF. 00
MELSEC-Q/L
Conversion setting
: Setting required : Setting not required
H
H
H
to EF
H H
to 40 ).
H H
to 3A8 )
H H
) and the
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