PFEA112-20 3BSE050091R20 ABB Tension sensor amplifier (sold from stock)

PFEA112-20 3BSE050091R20 ABB Tension sensor amplifier (sold from stock)

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The relay supports the IEC 60870-5-103 remote communication protocol in the

unbalanced transmission mode. The IEC 60870-5-103 protocol is used to transfer

measurand and status data from the slave to the master. However, the IEC 60870-5-

103 protocol cannot be used to transfer disturbance recorder data.

The IEC 60870-5-103 protocol can be used only through the rear connection of the

relay on the optional communication module. Connecting the relay to a fibre-optic

communication bus requires a fibre-optic communication module. The line-idle

state of the fibre-optic communication module can be selected either via the HMI or

the SPA bus. According to the IEC 60870-5-103 standard, the line-idle state is “light

on”. To ensure communication, the line-idle state should be the same for both the

master and the slave device. The connection topology can be selected to be either

loop or star, the default being loop, and either via the HMI or the SPA bus. The

selected line-idle state and connection topology apply irrespective of which rear

communication protocol is active.

The relay uses the SPA bus protocol as default when the optional communication

module is in use. The protocol selection is memorized and is therefore always

activated when the rear connection is in use. The baud rate can be selected either via

the HMI or the SPA bus. According to the IEC 60870-5-103 standard, the baud rate

is 9.6 kbps. When the IEC 60870-5-103 protocol is active, event masks are not in

use. Consequently, all events in the selected configuration set are included in the

event reporting.

The relay is provided with two different selectable configuration sets, of which

configuration set 1 is used by default.

Configuration set 1 is intended to be used when the optional I/O module is not

installed. Configuration set 2 includes additional information, for example output

contact events 6...8 (SO3...SO5) and digital input events 3...5 (DI3...DI5), provided

that the optional I/O module is installed.

Function type and information number are mapped into configuration sets according

to the IEC 60870-5-103 standard to the extent that these have been defined by the

standard. If not defined by the standard, the type of function and/or the information

number are/is mapped into a private range.