Calculation Of Number Of Remote I/O Points - Mitsubishi Electric MELSEC iQ-F FX5U User Manual

Calculation of number of remote I/O points

If the master module of the network is used, calculate the number of remote I/O points connected on the network.
The total number of remote I/O points must not exceed 384 points.
Maximum number of
Remote I/O points
remote I/O points
384 points
≥
The maximum number of remote I/O points differs according to type of the network.
Precautions
Precautions when using CC-Link master (FX3U-16CCL-M) and AnyWireASLINK master (FX3U-128ASL-M) together
When using FX3U-16CCL-M and FX3U-128ASL-M together, connect FX3U-128ASL-M on the left side. In the FX5U CPU
module, FX3U-16CCL-M parameters are set up by PLC program and will occupy up to 256 remote I/O points. Therefore, the
remote I/O points of FX3U-128ASL-M that is connected to the right side may be less than 128 points when FX3U-16CCL-M is
connected to the left side.
Ex.
When input/output points are 160 points and CC-Link master are 256 points: 512 points - 160 points - 256 points = 96 points
Remote I/O points of AnyWireASLINK master are 96 points or less.
CC-Link remote I/O
Remote I/O points that are used in FX3U-16CCL-M are calculated as "number of stations X 32 points."
Even if using less than 32 remote I/O points, calculate as "number of stations X 32 points."
Maximum number of
CC-Link remote I/O points
256 points
≥
In the FX5U CPU module, FX3U-16CCL-M parameters are set up by PLC program and will occupy up to 256 remote I/O
points.
When the total number of the number of input/output points (including occupied input/output points) and the number of remote
I/O points of FX3U-128ASL-M that is connected to the left side exceeds 256 points, the difference of 512 minus that total can
be used as CC-Link remote I/O points.
The total number of remote I/O points
in CC-Link and AnyWireASLINK
(2)
=
The total number of the remote I/O
points connected on the network
Actually used CC-Link remote I/O points
(a)
=
(a) CC-Link remote The total number of the remote I/O
I/O points stations × 32 points
(a) + (b) points
(a): CC-Link remote I/O
(b): AnyWireASLINK remote I/O
× 32 points
station
4.3 Limitation on the Number of Input/Output Points
4 SYSTEM CONFIGURATION
4
55