5 - 10 5 - 10
MELSEC-Q
5 ASSIGNMENT OF I/O NUMBERS
5.5.2 Remote station I/O number
It is possible to allocate High Performance model QCPU device input (X) and output
(Y) to remote station I/O modules and intelligent function modules and control the
modules in the MELSECNET/H remote network, the CC-Link and other remote I/O
systems.
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p
p
ly
Remote
station
MELSECNET/H
CC-Link
Allocation of
QCPU input (X) and
output (Y) possible
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Remote
station
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Q
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61
B
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11
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7
1
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21
QX
4
1
QY
4
1
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D
QY
4
1
QY
4
1
Q64A
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7
2
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25
QX
4
1
QX
4
1
When using High Performance model QCPU device input (X) and output (Y) in remote
stations, I/O numbers that succeed the numbers used by the main base unit and
extension base units' I/O modules and intelligent function modules will be allocated.
For example, if X/Y0 to X/Y3FF are being used by the main base unit and extension
base units' I/O modules and intelligent function modules, then numbers above X/Y400
can be used by the remote station.
However, the I/O numbers for remote stations should be set in consideration of
additions to the main base unit and extension base units' I/O modules and intelligent
function modules.
For example, if 1024 points from X/Y0 to X/Y3FF are being used by the main base unit
and extension base units, and 256 points from X/Y400 to X/Y4FF are to be held back
for use with future additions, then the situation shown in the diagram below is to be
observed.
X/Y0
X/Y3FF
X/Y400
X/Y4FF
X/Y500
X/Y1FFF
I/O (X/Y)
For MELSECNET/H
remote I/O station
For CC-Link remote
station
I/O numbers being used by the main base unit and
extension base units
Held back for future additions
I/O numbers that can be used by remote stations
to
to
to
POINT
If network parameter setting is not made in the CC-Link system, 2048 points in the
range from X/Y1000 to X/Y17FF are assigned to the master local module of the
CC-Link having the lowest number.
REMARK
There is restriction on the order of allocating I/O numbers for MELSECNET/H
remote I/O networks, CC-Link or other networks.
Содержание QCPU (Q Mode)
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