Number Of Cc-Link Communication Connectable Units And Precautions - Mitsubishi Electric MDU-BN Instruction Manual

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.
30