Communication Link Setup - ABB Relion 615 series Manual

Section 3
Vendor-specific implementation
3.2.1
12
Table 3: Serial data characteristics
Parameter
Com speed
Data bits
Parity
Start bits
Stop bits
Depending on the IED model and variant, the RE_615 serial communication cards
can host one or several serial channels. The IEC 60870-5-103 protocol can operate
in up to two instances and therefore supporting two IEC 60870-5-103 masters in
parallel. The two instances will share the same point configuration, but each
instance has its own independent Class 1 event buffer. Instances can also have
different Class 2 measurand frames. Separate link setting parameters exist for both
instances. Setting parameters have the suffixes 1 or 2 depending on the instance.

Communication link setup

Serial communication link setup in the IED is divided between serial driver setup
and protocol link setup. Serial drivers relate to the physical serial ports of the IED.
If the IED has two physical ports, they are named COM1 and COM2. Setting
parameters for COMn (n = 1 or 2) ports are found in Configuration/
Communication/COMn. COMn setting parameters are protocol independent and
relate to the physical link. The communication speed is set in the COMn parameters.
Once the COMn port is configured, the next step is to attach the IEC 60870-5-103
protocol to the port. This is done by the setting parameters of the communication
protocol in question. The IEC 60870-5-103 protocol setting parameters are located
in Configuration/Communication/IEC 60870-5-103.
For example, in order to attach the IEC 60870-5-103 instance 1 to the COM2 port
and assign the link unit address to 25, make the following settings:
• Serial port 1 = COM2
• Address 1 = 25
The suffix 1 in a parameter name relate to instance 1. With the communication
speed selection on COM2, these settings are enough in order to get the
communication link operating.
For the COM port parameter settings and hardware setup see the
technical manual.
Value
9600 or 19200 bauds
8
Even
1
1
1MRS756710 C
615 series
Communication Protocol Manual