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MELSEC-Q
3 SPECIFICATIONS
(3) Address information area (Buffer memory address: 1920 (780
H
) to
2039 (7F7
H
))
This area shows the station address, input byte length, and output byte length for
each slave station. This allocation is set by the GX Configrator-DP. The station
addresses for the 1st through the 60th stations are stored in the order of
registration in the GX Configrator-DP. (Station addresses: 1 to 126, do not need
to be sequential numbers.)
The address information area configuration is shown below. For details refer to
Section 3.4.2 (4).
1920(780
H
)
1921(781
H
)
1922(782
H
)
1923(783
H
)
2036(7F4
H
)
2037(7F5
H
)
2038(7F6
H
)
2039(7F7
H
)
Station address of 1st station
1st station input byte length
1st station output byte length
Station address of n station
n th station input byte length
n th station output byte length
Station address of 59th station
59th station input byte length
59th station output byte length
Station address of 60th station
60th station input byte length
60th station output byte length
2nd station input byte length
2nd station output byte length
Station address of 2nd station
Buffer memory
address demical
(Hexadecimal)
(a) The station address of unallocated stations is FFFF
H
, and the I/O byte is
FF
H
.
(b) When the I/O byte length of allocated stations is 0, a 0 is stored for the byte
length.
(c) The n does not show the station address but represents a number (the nth
number) used for the input/output area.
