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Functions and characteristics
Compact communication
Networks and sofware
Modbus
Modbus is the most widely used communication protocol in industrial networks.
It operates in master-slave mode. The devices (slaves) communicate one after the
other with a gateway (master).
Compact, Compact NSX, PowerLogic and Sepam products all operate with this
protocol. AModbus network is generally implemented on an LV or MV switchboard
scale. Depending on the data monitored and the desired refresh rate, a Modbus
network connected to a gateway can serve 4 to 16 devices. For larger installations, a
number of Modbus networks can be connected to an Ethernet network (TCP/IP/
Modbus protocol) via their gateways (EGX).
DB128054
Internet
Modbus
Modbus
EGX300
EGX100
FDM121
Masterpact
Compact NSX
Compact NS630b/3200
PowerMeter
Sepam
FDM121
FDM121
CCM
Firewall
Automatic
notification
Nomad
mode
Site Intranet
Ethernet (TCP/IP/Modbus)
Consultation
RSU
RCU
Consultation
RSU
RCU
Ethernet (TCP/IP/Modbus)
Modbus
ULP
Compact uses the Modbus communication protocol,
compatible with ION-E electrical engineering expert
system software.
Two downloadable sofware (RSU, RCU)
from schneider-electric.com facilitate implementation
of communication functions.