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Introduction
System Configuration
1.3
1.3.1
Overview
A slave station set-up with the MELSEC ST series is connected to a PROFIBUS/DP network.
Use is not limited to networks with a MELSEC PLC as master station, but is also possible in net-
works with devices from "third-party" manufacturers.
Populating the stations with ST modules is based on the requirements of the application. Analog
modules for capture or output of voltages or currents are available, in addition to digital input and
output modules.
"ST" means "Slice Type terminal", and refers to the narrow width of the modules (only 12.6 mm!).
In addition to the narrow modules, cost-saving modules with 16 digital inputs or outputs are also
available.
An ST series slave station always consists of a head station, which establishes the connection
to the PROFIEBUS/DP network. At least one power distribution module, and the digital and/or
analog I/O modules are connected to the head station.
GX Configurator DP
The I/O modules consist of an electronics module and a base module, which establishes the
connection to the head station via screw clamp terminals, or spring clamp terminals. The elec-
tronics modules are simply plugged onto the base module, which in turn is mounted on a DIN
rail. It is not necessary to disconnect the wiring when swapping out a module because the sig-
nals are connected to the base module.
8
Master station (QJ71PB92D
Y10
0
Bus terminator
GX Configurator ST
Slave station (MELSEC ST series)
Slave station
Slave station
Slave station
MITSUBISHI ELECTRIC
Slave station
(MELSEC ST series)
Slave station
Bus terminator
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