GE Multilin L60 Line Phase Comparison Relay 5-2355 SETTINGS 5.7 INPUTS/OUTPUTS5b) DIRECT OUTPUTSPATH: SETTINGS ÖØ INPUTS/OUTPUTS ÖØ DIRECT OUTPUTS Ö DIRECT OUTPUT 1(32)The DIRECT OUT 1 NAME setting allows the user to assign a descriptive name to the direct output. The DIR OUT 1 OPERAND isthe FlexLogic™ operand that determines the state of this direct output.c) APPLICATION EXAMPLESThe examples introduced in the earlier Direct Inputs/Outputs section (part of the Product Setup section) direct inputs/out-puts are continued below to illustrate usage of the direct inputs and outputs.EXAMPLE 1: EXTENDING INPUT/OUTPUT CAPABILITIES OF A L60 RELAYConsider an application that requires additional quantities of digital inputs and/or output contacts and/or lines of program-mable logic that exceed the capabilities of a single UR-series chassis. The problem is solved by adding an extra UR-seriesIED, such as the C30, to satisfy the additional inputs/outputs and programmable logic requirements. The two IEDs are con-nected via single-channel digital communication cards as shown below.Figure 5–126: INPUT/OUTPUT EXTENSION VIA DIRECT INPUTS/OUTPUTSAssume contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings should be applied (Direct Input 5and bit number 12 are used, as an example):The Cont Ip 1 On operand of UR IED 2 is now available in UR IED 1 as DIRECT INPUT 5 ON.EXAMPLE 2: INTERLOCKING BUSBAR PROTECTIONA simple interlocking busbar protection scheme can be accomplished by sending a blocking signal from downstreamdevices, say 2, 3 and 4, to the upstream device that monitors a single incomer of the busbar, as shown in the figure below.Figure 5–127: SAMPLE INTERLOCKING BUSBAR PROTECTION SCHEME DIRECT OUTPUT 1DIRECT OUT 1 NAME:Dir Out 1Range: up to 12 alphanumeric charactersMESSAGE DIRECT OUT 1 OPERAND:OffRange: FlexLogic™ operandMESSAGE DIRECT OUTPUT 1EVENTS: DisabledRange: Enabled, DisabledUR IED 1: DIRECT INPUT 5 DEVICE ID = “2”DIRECT INPUT 5 BIT NUMBER = “12”UR IED 2: DIRECT OUT 12 OPERAND = “Cont Ip 1 On”UR IED 1TX1RX1UR IED 2TX1RX1842712A1.CDRUR IED 1UR IED 2 UR IED 4UR IED 3BLOCK
