Input Signal Properties; Output Signal Properties; Goose Input Signal Properties; Goose Output Signal Properties - GE P741 Technical Manual

P74x/EN PL/Na7
(PL) 7-8
1.6.3

Input signal properties

Input Signal
Relay logic functions provide logic output signals that can be used for programming in PSL.
Depending on the relay functionality, operation of an active relay function will drive an
associated DDB signal in PSL.
For example DDB 261 will be asserted in the PSL should the active earth fault 1, stage 1
protection operate/trip.
1.6.4

Output signal properties

Output Signal
Relay logic functions provide logic input signals that can be used for programming in PSL.
Depending on the relay functionality, activation of the output signal will drive an associated
DDB signal in PSL and cause an associated response to the relay function
For example, if DDB 216 is asserted in the PSL, it will block the sensitive earth function
stage 1 timer.
PL
1.6.5

GOOSE input signal properties

GOOSE In
The Programmable Scheme Logic interfaces with the GOOSE Scheme Logic (see S1 users
manual) by means of 32 Virtual inputs. The Virtual Inputs can be used in much the same
way as the Opto Input signals.
The logic that drives each of the Virtual Inputs is contained within the relay's GOOSE
Scheme Logic file. It is possible to map any number of bit-pairs, from any
using logic gates onto a Virtual Input (see S1 Users manual for more details).
For example DDB 832 will be asserted in PSL should virtual input 1 operate.
1.6.6

GOOSE output signal properties

GOOSE Out
The Programmable Scheme Logic interfaces with the GOOSE Scheme Logic by means of
32 Virtual outputs.
It is possible to map virtual outputs to bit-pairs for transmitting to any
(see S1 Users manual for more details).
For example if DDB 865 is asserted in PSL, Virtual Output 32 and its associated mappings
will operate.
Programmable Logic
MiCOM P741, P742, P743
subscribed device,
subscribed devices