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17. CNC CONNECTION
17.2 System Configuration
17.2.4 Ethernet connection
*1 The destination connected with the twisted pair cable varies with the configuration of the applicable Ethernet network system.
Connect to the Ethernet module, hub, transceiver or other system equipment corresponding to the applicable Ethernet network
system.
Use cables, connectors, and hubs that meet the IEEE802.3 10BASE-T/100BASE-TX standards.
A cross cable is available for connecting the GOT to the Ethernet module.
*2 A length between a hub and a node.
The maximum distance differs depending on the Ethernet device to be used.
The following shows the number of the connectable nodes when a repeater hub is used.
• 10BASE-T: Max. 4 nodes for a cascade connection (500m)
• 100BASE-TX: Max. 2 nodes for a cascade connection (205m)
When switching hubs are used, the cascade connection between the switching hubs has no logical limit for the number of
cascades.
For the limit, contact the switching hub manufacturer.
*3 For the system configuration of the expansion unit, refer to the following manuals.
C6/C64/C64T CONNECTION AND MAINTENANCE MANUAL BNP-B2255
C6/C64/C64T NETWORK INSTRUCTION MANUAL BNP-B2373
*4 Select [AJ71QE71] for [Controller Type] in [Ethernet] of GT Designer3.
For [Ethernet] of GT Designer3, refer to the following.
17.4.4 Ethernet setting
Expansion
unit
GOT
Connection cable
MELDAS
C6/C64
Ethernet (MELSEC), Q17nNC,
CRnD-700, and gateway
Communication driver
CNC
Connection cable
*1
GOT
Number of
connectable
equipment
Model name Expansion unit
Commun
ication
type
Cable model
Maximum
segment
length
*2
Option device Model
MELDAS C6/C64
FUC6-EX875
*2*4
Ethernet
• 100BASE-TX
Shielded twisted pair cable
(STP) or unshielded twisted
pair cable (UTP) of category
5 or higher
• 10BASE-T
Shielded twisted pair cable
(STP) or unshielded twisted
pair cable (UTP) of category
3 or higher
100m - (Built into GOT)
128 GOTs
(recommended to
16 units or less)
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