Technical information

3/19
Modicon M580 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 10/100BASE-TX port in network modules
b 10/100BASE-TX port integrated in CPUs
Number of
simultaneous
TCP/IP
connections
Modicon M340 BMX Modicon Premium TSX Modicon Quantum 140
NOC0401
NOE0110
P342020
P342030
ETY210
ETY110WS
ETC101
WMY100
P5710...5760
NOC77101/78ppp
CPU113/311pp
CPU434/53414B
CPU65ppp
CPU67ppp
NOC77101
NOC78p00
Client 16 16 32 16 (1) 16 (1) 16 (1) 16
Server 32 32 64 (1) 64 (1) 64 (1) 32
Bandwidth management for Ethernet Modbus/TCP modules
The bandwidth management service indicates the load level of the Ethernet network
module. This allows the user to monitor resource consumption and help ensure a
good module performance.
The Ethernet module load is indicated in one of three ways:
b Expected load in the Unity Pro conguration screen
b Actual load in the Unity Pro diagnostics/debug screen
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 Others
Ethernet solutions with Modicon M580 platforms
Modicon M580 platforms feature two types of connection to the Ethernet network:
b The 10/100BASE-TX port integrated in the CPUs, which also process the
application and exchange data with the other modules supported by the rack and
other communication ports (CANopen bus, Modbus serial link, etc.)
b The multiple 10/100BASE-TX port in dedicated Ethernet modules on which, unlike
the CPU with integrated Ethernet port, all the resources are allocated to Ethernet
Modbus/TCP and EtherNet/IP 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 user messages/s).
b Where there are a large number of exchanges, use of a dedicated Ethernet
network module is strongly recommended to help improve performance.
(1) With 64 TCP/IP connections maximum (cumulative total of client and server connections).
(2) The BMXNOC0402 communication module will be replaced by the BMENOC03p1 modules
during the 2nd quarter of 2014.
Performance (continued),
selection
Bandwidth management
Ethernet port integrated in
the CPU (for example with
BMEP584040 Modicon
M580 CPU)
Dedicated Ethernet
module (for example with
BMXNOC0402 Modicon
M580 module) (2)
or
Processors:
page 1/18
I/O architectures:
page 2/2
Software:
page 4/2
Ruggedized Modicon M580
modules: page 5/2
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