System Configuration - Mitsubishi Electric GOT2000 Series Connection Manual

6.2

System Configuration

6.2.1 Connecting to MODBUS/TCP slave equipment
MODBUS/TCP
slave equipment
Connection cable
Communication
Controller
Type
• 100BASE-TX
MODBUS/
TCP Ethernet
• 10BASE-T
equipment
*1 Connect the GOT to the MODBUS/TCP equipment via a hub.
Use cables, connectors, and hubs that meet the IEEE802.3 10BASE-T/100BASE-TX standards.
*2 When connecting GT2000 to an equipment that meets the 10BASE (-T/2/5) standard, use the switching hub and operate in an
environment where 10Mbps and 100Mbps can be mixed.
*3 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.
*4 Use the straight cable.
*5 For details, refer to the MODBUS/TCP equipment manual.
*6 In the case of GT21, 4 or less.
*7 GT25-W does not support the option device.
Hub
Connection cable
External
Maximum
device
*4 segment
Cable model
*3
length
Shielded twisted
pair cable (STP)
or unshielded
twisted pair cable
(UTP) of category
5 or higher
100m
Hub
Shielded twisted
pair cable (STP)
or unshielded
twisted pair cable
(UTP) of category
3 or higher
GOT
Connection cable
Connection cable
Maximum
*4 segment
Cable model
length
• 100BASE-TX
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 5 or
higher
*1
100m
• 10BASE-T
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 3 or
higher
6.2 System Configuration
Communication driver
MODBUS/TCP Master, Gateway
*2
GOT
Number of
Option
connectable
GOT
device
equipment
model
*3 *7
When
controller:GOT is
- (Built
N:1 The number of
into
controllers for 1
GOT)
GOT is TCP: 128
*6
or less.
When
controller:GOT is
1:N
The following
GT25-
shows the number
J71E71
of GOTs for 1
-100
controller
Depends on the
MODBUS/TCP
equipment used.
6
*5
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