Communication Link Setup - ABB RELION 620 Series Communication Protocol Manual

Section 3
Vendor-specific implementation
3.2.1
10
Table 3: Serial data characteristics
Parameter
Com speed
Data bits
Parity
Start bits
Stop bits
Depending on the IED model and variant, the 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.
A function block represents the IEC 60870-5-103 protocol on the IED's application
configuration level. The block is named I3CLPRT1 or I3CLPRT2, depending on
which of the two protocol instances is in use.
I3CLPRT
EC_FRZ
STATUS
GUID-B230DC02-9257-4A70-A16D-2FC4A9D35CD6 V1 EN
Figure 2: Function block
By default, Instance 1 is active in the IED, but needs to be set "On" by the Operation
parameter. For additional clients, an instance has to be activated by dragging a
function block to the configuration in the Application Configuration tool of the
PCM600.

Communication link setup

Serial communication link setup in the IED is divided between serial driver setup and
protocol link setup. Serial drivers are related 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.
The COMn setting parameters are protocol-independent and related to the physical
link. The communication speed is set in the COMn parameters.
For the COM port parameter settings and hardware setup, see the
technical manual.
Value
9600 or 19200 bauds
8
Even
1
1
1MRS757647 C
620 series
Communication Protocol Manual