Cooper SMP 4 - Figure 5 the Transparent SMP Gateway

12 • SMP Gateway User Manual
REAL-TIME
DATA EXCHANGE
MODBUS
SLAVE
MODBUS
MASTER
RS-232
CONNECTION
RS-232
CONNECTION
SCADA
DEVICE
Figure 5 The transparent SMP Gateway
In this configuration, the master component polls the device and stores the values in the RTDX.
The slave component processes the SCADA polling requests and sends the values provided by the
device.
There is not much use for a transparent gateway. However, it contains much more than the
components that we described previously. Simply by adding the SMP Gateway to the substation,
you now have access to the following advanced functions:
 Centralized automation functions, using the built-in Automation functions or the IEC 61131-3
Soft PLC logic processor.
 Real-time data display, using the built-in web server.
 Transparent access to devices, using the passthrough server, for local or remote IED
maintenance.