Alstom MiCOM P54 Series - Function key properties; Fault recorder trigger properties; LED signal properties; Contact signal properties

P54x/EN PL/La4 Programmable Logic
(PL) 7-12 MiCOM P543, P544, P545 & P546
1.6.9 Function key properties
Function Ke
y
Each function key can be selected and used for programming in PSL. Activation of the
function key will drive an associated DDB signal and the DDB signal will remain active
depending on the programmed setting i.e. toggled or normal. Toggled mode means the
DDB signal will remain latched or unlatched on key press and normal means the DDB will
only be active for the duration of the key press.
For example operate function key 1 to assert DDB 1096 in the PSL.
1.6.10
Fault recorder trigger properties
Fault Record
Trigger
The fault recording facility can be activated, by driving the fault recorder trigger DDB signal.
For example assert DDB 702 to activate the fault recording in the PSL.
1.6.11 LED signal properties
LED
All programm
able LEDs will drive associated DDB signal when the LED is activated.
For example DDB 1036 will be asserted when LED 7 is activated.
PL
1.6.12 Contact signal properties
Con
tact Signal
All relay output contacts will drive associated DDB signal when the output contact is
activated.
For example DDB 009 will be asserted when output R10 is activated.