System Configuration - Mitsubishi Electric GOT2000 Series Connection Manual

8.2

System Configuration

8.2.1 Connecting to MODBUS/TCP master equipment
MODBUS/TCP
master equipment
Connection cable
Communication
Controller
Type
• 100BASE-TX
MODBUS/
TCP
Ethernet
master • 10BASE-T
equipment
*1 Connect the GOT to the MODBUS/TCP master 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 hub s 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 master equipment manual.
*6 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
8.2 System Configuration
Communication driver
MODBUS/TCP Slave, Gateway
*2
GOT
Number of
Option
connectable
GOT
device
equipment
model
*3 *6
When master
equipment: GOT is
- (Built
N:1
into
The number of
GOT)
master equipment
for 1 GOT is 16 or
less (For GT21, 4
or less).
When master
equipment: GOT is
1:N
The following
GT25-
shows the number
J71E71
of GOTs for 1
-100
master equipment
Depends on the
MODBUS/TCP
master equipment
*5
used .
8
8 - 3