System Configuration; Connecting To Modbus(R)/Tcp Equipment - Mitsubishi Electric GOT2000 Series Connection Manual

6.2 System Configuration

6.2.1

Connecting to MODBUS(R)/TCP equipment

®
MODBUS /TCP
equipment
Connection cable
Connection cable
Commun
Controller ication
Cable model
Type
• 100BASE-TX
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 5 or
®
MODBUS
higher
Ethernet
/TCP
• 10BASE-T
equipment
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 3 or
higher
*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.
Hub
Connection cable
External
Maximum
device
*4 segment
Cable model
*3
length
• 100BASE-TX
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 5 or
higher
*1
100m
Hub
• 10BASE-T
Shielded twisted
pair cable (STP) or
unshielded twisted
pair cable (UTP) of
category 3 or
higher
®
/TCP equipment via a hub.
®
/TCP equipment manual.
GOT
Connection cable
Maximum
Option
*4 segment
device
*3
length
- (Built into
100m
GOT)
6. MODBUS(R)/TCP CONNECTION

6.2 System Configuration

*2
GOT
Number of connectable
GOT
equipment
model
When controller:GOT
is N:1 The number of
controllers for 1 GOT
is TCP: 128 or less.
When controller:GOT
is 1:N
The following shows
the number of GOTs
for 1 controller
Depends on the
®
MODBUS /TCP
*5
equipment used.
6 - 3
6
*6