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Performance
(
continued),
selection
Bandwidth management
Modicon Premium automation
platform
Ethernet Modbus/TCP network
Performance
Processing capacities of Modicon platforms
(
continued)
Number of simultaneous TCP/IP connections
The number of simultaneous TCP/IP connections depends on the platform as well as
the type of connection to the Ethernet network:
b
10/100
BASE-TX port in network modules
b
10/100
BASE-TX port integrated in processors
Number of
simultaneous TCP/IP
connections
Modicon M340
Modicon Premium
Modicon Quantum
BMX NOE 0100
BMX NOE 0110
BMX NOC 0401
BMX NOR 0200H
BMX P34 2020
BMX P34 20302
TSX ETY 110WS TSX ETY 4103/5103
TSX WMY 100
TSX ETC 101
TSX P57 10...60
140
NOE 771 00/10
140
NOE 771 01/11
140
NWM 100 00
140
NOC 771 01
140
CPU 311 10
140
CPU 434 12U
140
CPU 651 50/60
140
CPU 652 60
Client
16
16
32
16
(1
)
16
(1
)
16
(1
)
Server
32
32
64
(1
)
64
(1
)
64
(1
)
Bandwidth management for Ethernet Modbus/TCP modules
The bandwidth management service indicates the load level of the Ethernet network
module. This enables the user to monitor any drift and anticipate possible problems.
The Ethernet module load is indicated in one of three ways:
b
Expected load in the Unity Pro/PL7 configuration screen
b
Actual load in the Unity Pro/PL7 diagnostics/debug screen, as well as in the
diagnostics pages via the Web. This is displayed in the form of a bar chart animated
in real time.
b
In the SNMP interface for access by the SNMP network manager
The bandwidth is shown as a percentage for each of the following services:
b
Modbus (and Uni-TE) messaging
b
I/O Scanning
b
Global Data
b
Others
Ethernet solutions with Modicon M340 platforms
Modicon platforms feature two types of connection to the Ethernet network:
b
The 10/100BASE-TX port integrated in the processors, which also process the
application and ensure exchanges with the other modules supported by the rack and
other communication ports (CANopen bus, Modbus serial link, etc.).
b
The 10/100BASE-TX port in dedicated Ethernet modules on which, unlike the
processor with integrated Ethernet port, all the resources are allocated to Ethernet
Modbus/TCP communication.
These fundamentally different hardware characteristics result in equally different
capacities in terms of services and performance:
b
The integrated port is a low-cost way of satisfying applications that are not too
demanding in terms of communication (
y
500
useful messages/s).
b
Where there are a large number of exchanges, use of a dedicated Ethernet
network module becomes essential.
(1)
With 64 TCP/IP connections maximum (cumulative total of client and server connections)
Ethernet port integrated in
the processor (for example
with Modicon M340
processor
BMX P34 2020/2030)
Dedicated Ethernet
module (for example with
Modicon M340 module
BMX NOE 0100/0110)
or
2
1
3
4
5
6
7
8
9
10