System Configuration - Mitsubishi Electric GOT2000 Series Connection Manual

6.2

System Configuration

6.2.1 Connecting to MODBUS(R)/TCP equipment
®
MODBUS
equipment
Communication
Controller
Type
• 100BASE-TX
®
MODBUS
Ethernet
/TCP
• 10BASE-T
equipment
*1 Connect the GOT to the MODBUS
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
*6 In the case of GT21, 4 or less.
/TCP
Connection cable
Connection cable
External
Maximum
device
segment
*4
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
®
/TCP equipment via a hub.
®
/TCP equipment manual.
Hub
Connection cable
Connection cable
Maximum
segment
*4
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
GOT
*2
GOT
Number of
connectable
Option GOT
equipment
device model
*3
When
- (Built
controller:GOT is
into
N:1 The number of
GOT)
controllers for 1
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
equipment used.
6
®
/TCP
*5
6 - 3