30
5.4 Number of CC-Link communication connectable units and precautions
The MDU is a remote device station that occupies a single station. The number of connectable units and combinations with other devices must
satisfy both “number of connectable units in condition 1” and “number of connectable units in condition 2” below.
Number of connectable units in condition 1
{(1
×
a) + (2
×
b) + (3
×
c) + (4
×
d)} ≤ 64
a : Number of units occupying one station (this applies to the MDU)
b : Number of units occupying two stations
c : Number of units occupying three stations
d : Number of units occupying four stations
Number of connectable units in condition 2
{(16
×
A) + (54
×
B) + (88
×
C)} ≤ 2304
A : Number of remote I/O single stations ≤ 64
B : Number of remote device stations ≤ 42 (this applies to the MDU)
C : Number of local stations ≤ 26
If only MDUs are connected, up to 42 devices can be connected.
Number of connectable units in condition 1...... {(1
×
42) + (2
×
0) + (3
×
0) + (4
×
0)} = 42 ≤ 64
Number of connectable units in condition 2...... {(16
×
0) + (54
×
42) + (88
×
0)} = 2268 ≤ 2304
For the MDU panel mounting specification, the terminal block on the panel mounting bracket and the terminal block on the MDU are connected with
a special CC-Link cable (15 cm one-way, 30 cm two-way), so keep the following three points in mind.
(1) The one-way 15 cm length of the special CC-Link cable mentioned above is included in the distance between each station.
(2) The two-way 30 cm length of the special CC-Link cable mentioned above is included in the maximum transmission distance (total length
distance).
(3) The CC-Link version is “
CC-Link Ver. 1.10.
”
The special CC-Link cable mentioned above is the cable of part no. FANC-110SBH
manufactured by Kuramo Electric Co., LTD.
Summary of Contents for NF250-HEV
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