9-14 Database Date Code 20010518
SEL-2020 Instruction Manual
Row 3: Message trigger elements, D9 to D12, and Archive region trigger elements,
ARCH1 to ARCH3, set when the associated trigger operation is pending or in
progress. M settings element, MSET, is asserted while the Math/Move
equations for the port are executing.
Row 4: Message trigger delay elements, DLY1 to DLY8, assert when the associated
message trigger element, D1 to D8, does not reset before the next trigger
condition occurs, indicating a possible data collection delay or message error.
Row 5: Message trigger delay elements, DLY9 to DLY12 and DLYA1 to DLYA3,
assert when the associated message trigger element, D9 to D12 or ARCH1 to
ARCH3, does not reset before the next trigger condition occurs, indicating a
possible data collection delay or message error.
Rows 6 - 7: Breaker bits (BR1 - BR16) may be associated with issuing breaker operate
commands (OPEN/CLOSE) or may be used as latches for intermediate
SEL
OGIC Control Equations. These bits are set by the SBR1 - SBR16 elements
and cleared by the CBR1 - CBR16 elements.
Rows 8 - 9: Remote bits (RB1 - RB16) may be associated with issuing remote bit
commands (CONTROL) or may be used as latches for intermediate SEL
OGIC
Control Equations. These bits are set by the SRB1 - SRB16 elements and
cleared by the CRB1 - CRB16 elements.
Rows 10 - 13: Set breaker (SBR1 - SBR16) and set remote bit (SRB1 - SRB16) set the
corresponding breaker and remote bit elements, but may also be used as
intermediate terms for SEL
OGIC Control Equations. These bits are controlled
by logic equations (SET L) and by receipt of master port Fast Operate
commands.
Rows 14 - 17: Clear breaker (CBR1 - CBR16) and clear remote bit (CRB1 - CRB16) clear the
corresponding breaker and remote bit elements, but may also be used as
intermediate terms for SEL
OGIC Control Equations. These bits are controlled
by SEL
OGIC Control Equations (SET L) and by receipt of master port Fast
Operate commands.
You can use the VIEW or TARGET command to show Local element status. The SEL-2020
TARGET command response will also display the status of relay elements received from an
attached SEL relay in rows 18 and up, as if they were appended to the Local elements.
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