Prerequisites for local and remote updates - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Engineering Manual - REX640 Protection and control - PCL6 - IEC - ANSI - 16.02.2023

REX640 Engineering Manual

Local update

  • It is recommended to use the LHMI’s service port X1.2 or, if an LHMI is not used, the HMI port X0 of the communication module. The IED should be removed from the network especially with redundant network topologies (HSR or PRP).

Remote update

  • Communication should be secured either by setting up a VPN connection or by enabling secure communication in the IED via LHMI (Configuration > Communication > Protocols > Network1FTP or Configuration > Communication > Protocols > Network2 > FTP).
  • Remote update can be enabled in the IED either via the LHMI (Configuration > Authorization > Security > Remote Update) or by an administrator in Parameter Setting in PCM600 (IED Configuration > Configuration > Authorization > Remote Update. If the IED is in local control mode, remote update proceeds only after a confirmation is received from the user.
  • Remote update can be disabled manually after the update.
  • Remote update only works when the IED is connected from the Ethernet interface connector of the communication module with a custom IP address.
  • Remote update via a network gateway can be assigned either to Network 1 or Network 2.