Rockwell Automation 865 Differential Protection Relay User Manual

Page 141

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Communications

7-15

865-UM001A-EN-P – July 2009

Table 7.12 – IEC 60870-5-101 Parameters

Parameter

Value

Unit

Description

Note

bit/s 1200

2400
4800
9600

bps

Bitrate used for serial
communication.

Set

Parity None

Even
Odd

Parity used for serial communication

Set

LLAddr

1 – 65534

Link layer address

Set

LLAddrSize

1 – 2

bytes

Size of Link layer address

Set

ALAddr

1 – 65534

ASDU address

Set

ALAddrSize 1

2

Bytes

Size of ASDU address

Set

IOAddrSize

2 – 3

Bytes

Information object address size.
(3-octet addresses are created from
2-octet addresses by adding MSB
with value 0.)

Set

COTsize

1

Bytes

Cause of transmission size

TTFormat Short

Full

The parameter determines time tag
format: 3-octet time tag or 7-octet
time tag.

Set

MeasFormat Scaled

Normalized

The

parameter

determines

measurement data format:
normalized value or scaled value.

Set

DbandEna No

Yes

Dead-band calculation enable flag

Set

DbandCy

100 – 10000

ms

Dead-band calculation interval

Set

Set = An editable parameter (password needed)

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