Safety Notes and Access Rights
Safety Notes
DANGER
Hazard due to high voltage
Non-observance will lead to death or serious injury.
Work may only be carried out by trained personnel who are familiar with and observe the safety require-
ments and precautions.
²
Work may never be carried out if there is any hazardous voltage present.
²
De-energize the device.
²
Isolating device: Connect a suitable isolating device upstream to de-energize the device. The isolating
device must be installed near the device, it must be easily accessible to the user and it must be marked
as an isolating device for the device.
²
Secure the supply voltage with an approved (UL/IEC) fuse: 1.6 A, type C.
²
If a melting fuse is used, a suitable approved (UL/IEC) fuse holder has to be used.
NOTE
For electrical installations you have to observe and comply with the national and international provisions
concerning the installation of electric power installation and the low-voltage directive 2006/95/EG.
Access Rights
Access Rights for Configuration and Maintenance
To determine access rights, you have to set up passwords when configuring the device. You have to specify an
activation password and a maintenance password (see 2.2.2 Password Management).
The activation password is required to enable parameter changes in the device.
The maintenance password is required to make changes in the device using the Maintenance tab.
NOTE
If you do not specify new passwords, the factory-set default passwords (see 2.2.2 Password Management)
are valid.
Access Rights for Communication
The access rights for the communication via Ethernet with Modbus TCP protocol are made for port 502 and
for the user port. You can assign either full access rights or read-only authorization (see Table 2-19).
You can also determine the access rights for serial communication using the Modbus RTU protocol. You can
assign either full access rights or read-only authorization (see Table 2-21).
Communication via Ethernet with IEC 61850 server protocol and serial communication with IEC
60870-5-103 protocol do not require any access rights.
9.1
Commissioning and First Steps
9.1 Safety Notes and Access Rights
188 SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022
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