ABB REC 561 User Manual page 496

ABB Network Partner AB
Version 1.0-00
November 1996
Function:
1 Application
2 Design
2.1 General
2.2 Single Command
function
Command function
Optional
The REC 561 and REL 531 terminals may be provided with output func-
tions that can be controlled either from a Substation Automation System
or from the built-in MMI. The output functions can be used, for example,
to control high-voltage apparatuses in switchyards. For local control func-
tions, the built-in MMI can be used. Together with the configuration logic
circuits, the user can govern pulses or steady output signals for control
purposes within the terminal or via binary outputs. In the REC 561 control
terminal it is also possible to receive data from other contol terminals via
the LON bus.
Two types of command function blocks are available, Single Command
and Multiple Command. Eleven Single Command function blocks and 80
Multiple Command function blocks are available in the REC 561 control
terminal. One Single Command function block is available in the REL
531 line terminal.
The output signals can be of the types Off, Steady, or Pulse. The setting is
done on the MODE input, common for the whole block, from the CAP
531 configuration tool (for REC 561) or from SMS (for REL 531).
0=Off sets all outputs to 0, independent of the values sent from the station
level, that is, the operator station or remote-control gateway.
1=Steady sets the outputs to a steady signal 0 or 1, depending on the val-
ues sent from the station level.
2=Pulse gives a pulse with one execution cycle of typical 200 ms dura-
tion, if a value sent from the station level is changed from 0 to 1. That
means that the configured logic connected to the command function
blocks may not have a cycle time longer than 200 ms.
The Single Command function block has 16 outputs. The outputs can be
individually controlled from the operator station, remote-control gateway,
or from the built-in MMI. Each output signal can be given a name with a
maximum of 13 characters from the CAP 531 configuration tool (for REC
561) or from SMS (for REL 531).
The output signals, here CDxx-OUT1 to CDxx-OUT16, are then available
for configuration to built-in functions or via the configuration logic cir-
cuits to the binary outputs of the terminal.
The command functions can be connected according to the application
examples in Fig. 1 to Fig. 3. Note that the execution cyclicity of the con-
figured logic connected to the command function block cannot have a
cycle time longer than the command function block.
1MRK 580 165-XEN
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