C.7
Date Code 20090730 Instruction Manual SEL-734 Meter
SEL Communications Processors
SEL Communications Processor Example
SEL Communications Processor Example
This example demonstrates the data and control points available in the SEL
communications processor when you connect an SEL-734. Figure C.4 shows
the physical configuration this example uses.
Figure C.4 Example SEL Meter and SEL Communications Processor
Configuration
Table C.4 shows the Port 1 settings for the SEL communications processor.
Data Collection
The SEL communications processor is configured to collect data from the
SEL-734 through use of the auto-messages listed in Tab l e C.5 . Disable
auto-messages with the FMR1–FMR4 settings if eight or more SEL-734
meters are connected to an SEL communications processor, and the
communications processor issues the following report:
Attempting auto-configuration...
FAILED, auto-configuration error
This error indicates that the amount of data that the SEL-734 meters are
sending during an auto configuration attempt exceeds the capability of the
communications processor. See Fast Message Settings on page SET.6 for
additional details about the FMR1–FMR4 settings.
Table C.4 SEL Communications Processor Port 1 Settings
Setting Name Setting Description
DEVICE S Connected device is an SEL device
CONFIG Y Allow auto-configuration for this device
PORTID “Meter 1” Name of connected meter
a
a
Automatically collected by the SEL communications processor during auto-configuration.
BAUD 19200 Channel speed of 19200 bits per second
a
DATABIT 8 Eight data bits
a
STOPBIT 1 One stop bit
PARITY N No parity
RTS_CTS Y Hardware flow control enabled
TIMEOUT 5 Idle time-out that terminates transparent connections of 5
minutes
SEL Communications
Processor
SEL-734 Meter
Personal
Computer
Port F
Port 1
Cable C273A
Cable C234A
Courtesy of NationalSwitchgear.com
To Next Page
Loading...