Alstom MiCOM P846, Technical Manual

Page: 132 / 298

P846/EN PL/D Programmable Logic
(PL) 7-8
MiCOM P846
1.6.5 Control in signal properties
Control In
There are 32 control inputs which can be activated via the relay menu or rear
communications. When the control input is activated an associated DDB within the PSL will
be asserted high.
For example, if Control Input 1 is activated, DDB 160 is asserted in the PSL.
1.6.6 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 691 to activate the fault recording in the PSL.
1.6.7 LED signal properties
LED
All programmable LEDs will drive an associated DDB signal when the LED is activated.
For example DDB 64 will be asserted when LED 1 is activated.
PL
1.6.8 Contact signal properties
Contact Signal
All relay output contacts will drive an associated DDB signal when the output contact is
activated.
For example DDB 009 will be asserted when output R10 is activated.