FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
94
6 Examination of System Configuration
6.3 Number of Input/Output Points and Maximum Number of Input/Output Points
• FX
2N
-32ASI-M (AS-i master)
Only one FX
2N
-32ASI-M unit can be connected to a single PLC main unit.
This master cannot be used together with FX
3U
-16CCL-M and/or FX
2N
-16CCL-M.
• FX
3U
-64CCL
Only one FX
3U
-64CCL unit can be connected to a single PLC main unit.
4
Calculate the total number of input/output points.
Total the number of points counted in Steps 1, 2 and 3, and check that it does not exceed 256
points (maximum number of input/output points).
5
When CC-Link or AS-i master is used, count the remote I/O points.
When CC-Link or AS-i master is used, the total number of input/output points of the remote I/O sta-
tions connected on the network and the number of input/output points calculated in the previous
step are 384 or less.
For details, refer to the following subsection.
1. FX
3U
-16CCL-M, FX
2N
-16CCL-M (CC-Link master)
Calculate the number of remote I/O points connected on the network in the following step.
→
When CC-Link master is used, refer to Subsection 6.3.2.
2. FX
2N
-32ASI-M (AS-i master)
Calculate the number of remote I/O points connected on the network in the following step.
→
When AS-i master is used, refer to Subsection 6.3.3.
≥
Maximum number of
input/output points
256 points
Maximum number of
points controllable on
system
Number of input/output points
+
Total number of input/output points of input/output powered
extension units and input/output extension blocks
(A): Number of input/output points of main unit
(B): Number of input/output points of input/output
powered extension units
(C): Number of input/output points of input/output
extension blocks
(D): Number of remote I/O points of FX
2N
-64CL-M or FX
2N
-
16LNK-M
(E): Number of special function units/blocks
(A)
+
(B)
(C)
+
Number of input/output occupied
points
(E) units
×
8 points
Each special function unit/block
used for FROM/TO instructions
occupies eight input or output
points.
(D)
+
Summary of Contents for FX2-16E series
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Page 8: ... 6 Safety Precautions Read these precautions before use MEMO ...
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