Siemens 7SR224 - IEC60870-5-101 Settings

7SR224 Argus Data Comms
©2010 Siemens Protection Devices Limited Chapter 4 Page 5 of 76
2.1.2 IEC60870-5-101 Settings
The following relay settings are provided for configuration of the IEC60870-5-101 implementation when available
and are common to all ports using this protocol.
Setting name Range Default Setting Notes
I101 Link Mode
Balanced, Unbalanced Unbalanced As Required
Balanced transmission is
used for point to point
connection to one device.
The controlled station
(slave) may send link
messages at any time.
Unbalanced transmission
is used for multi-drop
connection, e.g. RS485,
to one or more devices.
The controlling station
(master) send class 1
and 2 polls to each slave
station.
I101 Link Address
Field
Not Present, 1 Octet, 2
Octets
1 Octet As Required
Size of link address in
octets.
Not Present – Only used
with balanced
transmission.
1 octet address range 0 –
254
2 octets address range 0
- 65534
I101 Common Address
of ASDU
1 Octet, 2 Octets 2 Octet As Required
Size of common address
in octets.
1 octet address range 0 –
254
2 octets address range 0
- 65534
I101 Cause of Trans
(COT)
1 Octet, 2 Octets 1 Octet As Required
Size of cause of
transmission in octets.
1 octet – COT code
2 octets – COT code +
originator address or 0.
I101 Info Obj Add (IOA)
1 Octet, 2 Octets, 3
Octets
2 Octet As Required
Size of Info Object
address in octets.
1 octet address range 1 –
255
2 octets address range 1
– 65535
3 octets used to generate
structured address
format.
I101 ASDU Address
0 .. 65535 3 As Required
Address to use to identify
ASDU layer
I101 Cyclic Period
Off, 1 ..3600 seconds 60 Seconds As Required
Period device will
generate cyclic data. Set
to Off to disable
generating of cyclic data.
Only data points with the
cyclic flag set will be
generated cyclically.