Configuration Of Hmi600; Logon To The Equipment; Element Management Networks; Rs-485 Station Bus - ABB ETL600 Instruction Manual

ETL600
4.4.5.2.2.

Configuration of HMI600

Refer to section 4.4.4.2.2: The Settings are identical to the ones for
communication via intranet/internet.
4.4.5.3.

Logon to the equipment

Refer to section 4.4.3.3: The Logon procedure is identical to the one
for direct connection via phone modems.
4.5.

Element management networks

4.5.1.

RS-485 station bus

If management access from one PC to several ETL600 terminals in a
substation is desired, the management HMI ports of these terminals
can be connected together via RS-485-bus available at the HMI port of
P4LT at the ETL600 front as shown in Fig. 4-5. The PC must be
connected via remote inquiry kit R7AP to the RS485 bus. Of course,
this network of terminals can also be reached from a remote location
according to Fig. 4-1, Fig. 4-2, Fig. 4-3 or Fig. 4-4, replacing the single
ETL600 terminals shown in these figures by the network of terminals
as depicted in Fig. 4-5.
HMI600
In order to distinguish the terminals from each other, a unique address
called 'equipment ID' must be given to all terminals participating in the
network. The equipment ID is a number between 1 and 65000. It has
to be configured for each terminal prior to connecting the management
ports together to form the network.
4.5.2.

Embedded operation channel (EOC)

The remote equipment of an ETL600 link can always be reached
without own equipment ID via the built in embedded operation channel
(EOC), which uses the pilot signal of the ETL600 terminals thus
occupying no additional bandwidth, refer to Fig. 4-6. However, the
transmission rate of the EOC is 100 bps, which is sufficient for alarm
monitoring, but might be tedious for more sophisticated tasks like
remote measurement of signals in the terminal, which involve a much
larger amount of data than alarm monitoring.
User Interface Program
1KHW001489-EN
RS232
connection
R7AP
Fig. 4-5 RS-485 station bus with R7AP
November 2005
ABB Switzerland Ltd
RS485
bus
ETL600 ETL600
ETL600
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