GE M60 Instruction Manual page 395

CHAPTER 5: SETTINGS
• Latest/On — Freezes the input in case of lost communications. When the latest state is not known, such as after relay
power-up but before the first communication exchange, the input defaults to Logic 1. When communication resumes,
the input becomes fully operational.
• Latest/Off — Freezes the input in case of lost communications. When the latest state is not known, such as after relay
power-up but before the first communication exchange, the input defaults to Logic 0. When communication resumes,
the input becomes fully operational.
5.9.6.2 Direct outputs
SETTINGS  INPUTS/OUTPUTS  DIRECT OUTPUTS  DIRECT OUTPUT 1(32)
 DIRECT OUTPUT 1

— This setting allows the user to assign a descriptive name to the direct output.
DIRECT OUT 1 NAME
— This sets the FlexLogic operand that determines the state of this direct output.
DIR OUT 1 OPERAND
5.9.6.3 Application examples
The examples introduced in the earlier Direct Inputs and Outputs section (part of the Product Setup section) are continued
here to illustrate usage of the direct inputs and outputs.
Example 1: Extending input/output capabilities of a UR relay
Consider an application that requires additional quantities of contact inputs or output contacts or lines of programmable
logic that exceed the capabilities of a single UR-series chassis. The problem is solved by adding an extra UR-series IED,
such as the C30, to satisfy the additional inputs/outputs and programmable logic requirements. The figure shows that two
IEDs are connected via single-channel digital communication cards.
Figure 5-150: Input and output extension via direct inputs and outputs
Assume that contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings are applied (Direct Input 5 and
bit number 12 are used, as an example).
UR IED 1:
DIRECT INPUT 5 DEVICE ID
DIRECT INPUT 5 BIT NUMBER
UR IED 2:
=
DIRECT OUT 12 OPERAND
The operand of UR IED 2 is now available in UR IED 1 as
Cont Ip 1 On
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
DIRECT OUT 1 NAME:

Dir Out 1
DIRECT OUT 1 OPERAND:

Off
DIRECT OUTPUT 1

EVENTS: Disabled
UR IED 1
UR IED 2
= "2"
= "12"
"Cont Ip 1
On"
Range: up to 12 alphanumeric characters
Range: FlexLogic operand
Range: Enabled, Disabled
TX1
RX1
TX1
RX1
842711A1.CDR
.
DIRECT INPUT 5 ON
INPUTS/OUTPUTS
5
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