ABB Rellon 620 Series - Configuring IEC 60870-5-101; Configuring IEC 60870-5-104

Section 3 1MAC306892-MB C
Vendor-specific implementation
14 RER620
Communication Protocol Manual
3.2.1 Configuring IEC 60870-5-101
To configure one protocol instance to work as IEC 60870-5-101 slave, configure the
parameters to enable basic communication.
• Port

According to the physical wiring, set either to "IEC101-COM1" or "IEC101-
COM2". Set the correct serial mode and communication baud rate under COM1/
COM2 settings.
• Device Address

Set to match the address set in the master.
• ASDU Address

Usually ASDU Address is the same as link address.
• Link Mode

If the system is configured to use unbalanced communication, set Link Mode to
"Unbalanced". Otherwise, no change is needed.
• COT Length

Usually set to 1. This setting must have the same value in the master and slave
devices.
• IOA Length

Usually, set to 2. This setting must have the same value in the master and slave
devices.
• Link Address Length

Usually set to 1. This setting must have the same value in the master and slave
devices.
• ASDU Address Length

Usually set to 1. This setting must have the same value in the master and slave
devices.
3.2.2 Configuring IEC 60870-5-104
To configure one protocol instance to work as IEC 60870-5-104 server, configure the
parameters to enable basic communication.
• Port

Set to "IEC104 - Ethernet".
• Client IP

Set to match the IP address of the client device.
• ASDU Address

Set to match the address set in the master.
ICheck the communication card jumpers. Refer to applicable manual for
details.