Operation P54x/EN OP/La4
MiCOM P543, P544, P545 & P546
(OP) 5-131
OP
3.6 Control inputs
The control inputs function as software switches that can be set or reset either locally or
remotely. These inputs can be used to trigger any function that they are connected to as
part of the PSL. There are three setting columns associated with the control inputs that are:
CONTROL INPUTS, CTRL. I/P CONFIG. and CTRL. I/P LABELS. The function of these
columns is described below:
Menu text Default setting Setting range Step size
CONTROL INPUTS
Ctrl I/P Status 00000000000000000000000000000000
Control Input 1 No Operation No Operation, Set, Reset
Control Input 2 to 32 No Operation No Operation, Set, Reset
The Control Input commands can be found in the ‘Control Input’ menu. In the ‘Ctrl. /P
status’ menu cell there is a 32 bit word which represent the 32 control input commands. The
status of the 32 control inputs can be read from this 32-bit word. The 32 control inputs can
also be set and reset from this cell by setting a 1 to set or 0 to reset a particular control input.
Alternatively, each of the 32 Control Inputs can be set and reset using the individual menu
setting cells ‘Control Input 1, 2, 3’ etc. The Control Inputs are available through the relay
menu as described above and also via the rear communications.
In the programmable scheme logic editor 32 Control Input signals, DDB 191 - 223, which can
be set to a logic 1 or On state, as described above, are available to perform control functions
defined by the user.
Menu text Default setting Setting range Step size
CTRL. I/P CONFIG.
Hotkey Enabled 11111111111111111111111111111111
Control Input 1 Latched Latched, Pulsed
Ctrl Command 1 Set/Reset
Set/Reset, In/Out, Enabled/Disabled,
On/Off
Control Input 2 to 32 Latched Latched, Pulsed
Ctrl Command 2 to 32 Set/Reset
Set/Reset, In/Out, Enabled/Disabled,
On/Off
Menu text Default setting Setting range Step size
CTRL. I/P LABELS
Control Input 1 Control Input 1 16 character text
Control Input 2 to 32 Control Input 2 to 32 16 character text
The CTRL. I/P CONFIG. column has several functions one of which allows the user to
configure the control inputs as either ‘latched’ or ‘pulsed’. A latched control input will remain
in the set state until a reset command is given, either by the menu or the serial
communications. A pulsed control input, however, will remain energized for 10 ms after the
set command is given and will then reset automatically (i.e. no reset command required).
In addition to the latched/pulsed option this column also allows the control inputs to be
individually assigned to the Hotkey menu by setting ‘1’ in the appropriate bit in the Hotkey
Enabled cell. The hotkey menu allows the control inputs to be set, reset or pulsed without
the need to enter the CONTROL INPUTS column. The Ctrl. Command cell also allows the
SET/RESET text, displayed in the hotkey menu, to be changed to something more suitable
for the application of an individual control input, such as ON/OFF, IN/OUT etc.
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