ABB Relion 620 Series - Modbus Settings

3.1.15 Modbus settings
Table 21: Modbus settings
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
5=off Enable or disable
this protocol in-
stance
Port
1=COM 1
2=COM 2
3=Ethernet - TCP 1
3=Ethernet - TCP 1 Port selection for
this protocol in-
stance. Select be-
tween serial and
Ethernet based
communication.
Mapping selection 1...2 1 1 Chooses which
mapping scheme
will be used for this
protocol instance.
Address 1...254 1 1 Unit address
Link mode
1=RTU
2=ASCII
1=RTU Selects between
ASCII and RTU
mode. For TCP, this
should always be
RTU.
TCP port 1...65535 1 502 Defines the listen-
ing port for the
Modbus TCP serv-
er. Default = 502.
Parity
0=none
1=odd
2=even
2=even Parity for the serial
connection.
Start delay 0...20 1 4 Start delay in char-
acter times for seri-
al connection
End delay 0...20 1 4 End delay in char-
acter times for seri-
al connections
CRC order
0=Hi-Lo
1=Lo-Hi
0=Hi-Lo Selects between
normal or swap-
ped byte order for
checksum for seri-
al connection. De-
fault: Hi-Lo.
Client IP 0.0.0.0 Sets the IP address
of the client. If set
to zero, connection
from any client is
accepted.
Write authority
0=Read only
1=Disable 0x write
2=Full access
2=Full access Selects the control
authority scheme
Time format
0=UTC
1=Local
1=Local Selects between
UTC and local time
for events and
timestamps.
Event ID selection
0=Address
1=UID
0=Address Selects whether the
events are reported
using the MB ad-
dress or the UID
number.
Table continues on the next page
Basic functions 1MRS757644 H
62 620 series
Technical Manual