
5 MODBUS/TCP (SLAVE)
5.1 System Configuration
61
5
5
MODBUS/TCP (SLAVE)
Since LE7-40GU supports the slave function of MODBUS/TCP communication which is an open FA network, it can
communicate with various MODBUS/TCP master equipment. Also, LE7-40GU (as a slave station) can perform data
monitoring and parameter writing from up to four master stations.
5.1
System Configuration
*1 Connect with MODBUS/TCP master equipment via a hub.
Use cables, connectors, and hubs that satisfy the IEEE 802.3 10BASE-T/100BASE-TX/1000BASE-T standard.
*2 When connecting LE7-40GU to 10BASE (-T/2/5) compliant equipment, please use it in a network environment where 10 Mbps/100
Mbps can be mixed using a switching hub.
*3 This is the length between the hub and the node.
The maximum distance depends on the Ethernet device used.
When using a repeater hub, the number of units that can be connected is as follows.
· 10BASE-T: Cascade connection up to 4 units (500 m)
· 100BASE-TX: Cascade connection up to 2 units (205 m)
When using a switching hub, the cascade connection between switching hubs has no theoretical limit on the number that can be
cascaded.
Please check with the manufacturer of the switching hub used for any restrictions.
*4 For the twisted pair cable, please use a straight cable.
*5 For details, refer to the manual of the MODBUS/TCP master equipment used.
Connection
equipment
Communic
ation form
Connection cable
External
device
Connection cable
Tension controller
Number of
connectable
devices
Cable type
name
Maximum
segment
length
Cable type
name
Maximum
segment
length
Optional
equipment
Main
unit
MODBUS/
TCP master
device
Ethernet
• 100BASE-TX
Category 5 or
more of shield
twisted pair
cable (STP) or
unshielded
twisted pair
cable (UTP)
• 10BASE-T
Category 3 or
more of shield
twisted pair
cable (STP) or
unshielded
twisted pair
cable (UTP)
100 m
Hub
• 100BASE-TX
Category 5 or
more of shield
twisted pair
cable (STP) or
unshielded
twisted pair
cable (UTP)
• 10BASE-T
Category 3 or
more of shield
twisted pair
cable (STP) or
unshielded
twisted pair
cable (UTP)
100 m
(Built-in to
main unit)
LE7-40GU
Master
equipment:
When LE7-
40GU is N:1,
four or less
master
equipment for
one LE7-
40GU)
Master
equipment:
When LE7-
40GU is 1:N,
the following
number of LE7-
40GU units for
one master
device.
Depending on
the MODBUS/
TCP master
equipment
used
MODBUS/TCP
master equipment
Hub
LE7-40GU
Connection Cable
Connection Cable
Содержание LE7-40GU
Страница 1: ...LE7 40GU INSTRUCTION MANUAL Communication ...
Страница 2: ......
Страница 10: ...8 TRADEMARKS 150 ...
Страница 11: ...9 CONTENTS ...
Страница 37: ...3 CC LINK IE FIELD NETWORK BASIC COMMUNICATION 3 3 Reference Program 35 3 ...
Страница 38: ...36 3 CC LINK IE FIELD NETWORK BASIC COMMUNICATION 3 3 Reference Program ...
Страница 39: ...3 CC LINK IE FIELD NETWORK BASIC COMMUNICATION 3 3 Reference Program 37 3 ...
Страница 40: ...38 3 CC LINK IE FIELD NETWORK BASIC COMMUNICATION 3 3 Reference Program ...
Страница 57: ...4 SLMP COMMUNICATION 4 3 Reference Program 55 4 Program example ...
Страница 58: ...56 4 SLMP COMMUNICATION 4 3 Reference Program ...
Страница 59: ...4 SLMP COMMUNICATION 4 3 Reference Program 57 4 ...
Страница 60: ...58 4 SLMP COMMUNICATION 4 3 Reference Program ...
Страница 61: ...4 SLMP COMMUNICATION 4 3 Reference Program 59 4 ...
Страница 82: ...80 5 MODBUS TCP SLAVE 5 3 Reference Program Program example ...
Страница 83: ...5 MODBUS TCP SLAVE 5 3 Reference Program 81 5 ...
Страница 84: ...82 5 MODBUS TCP SLAVE 5 3 Reference Program ...
Страница 85: ...5 MODBUS TCP SLAVE 5 3 Reference Program 83 5 ...
Страница 86: ...84 5 MODBUS TCP SLAVE 5 3 Reference Program ...
Страница 110: ...108 6 N N NETWORK 6 4 Reference Program Program example ...
Страница 111: ...6 N N NETWORK 6 4 Reference Program 109 6 ...
Страница 112: ...110 6 N N NETWORK 6 4 Reference Program ...
Страница 147: ...7 MODBUS RTU ASCII SLAVE 7 4 Reference Program 145 7 Function code H03 Read holding register ...
Страница 149: ...7 MODBUS RTU ASCII SLAVE 7 4 Reference Program 147 7 ...
Страница 153: ......