Remote Terminal Unit (RTU). Prior to the Initial Synchronization Date of the Generating Facility, a remote terminal unit, or equivalent data collection and transfer equipment acceptable to both Parties, shall be installed by Interconnection Customer, or by Transmission Owner at Interconnection Customer’s expense, to gather accumulated and instantaneous data to be telemetered to the location(s) designated by Transmission Owner and Transmission Provider through use of a dedicated point-to-point data circuit(s) as indicated in Article 8.1. The communication protocol for the data circuit(s) shall be specified by Transmission Owner and Transmission Provider. Instantaneous bi- directional analog real power and reactive power flow information must be telemetered directly to the location(s) specified by Transmission Provider and Transmission Owner. Each Party will promptly advise the other Parties if it detects or otherwise learns of any metering, telemetry or communications equipment errors or malfunctions that require the attention and/or correction. The Party owning such equipment shall correct such error or malfunction as soon as reasonably feasible.
Remote Terminal Unit (RTU). Prior to the Initial Synchronization Date of the Generating Facility, a remote terminal unit, or equivalent data collection and transfer equipment acceptable to both Parties, shall be installed by Interconnection Customer, or
Remote Terminal Unit (RTU). Database The EMS personnel are responsible for creating the database for the SCADA RTU for the NorthWestern Energy Substation at the point of interconnection. Most of the database is defined by the NorthWestern Energy Protective Relay Department. The NorthWestern Energy Telecommunications Department will specify the connection between the RTU and the NorthWestern Energy’s System Operation Control Center in Butte, Montana.
Remote Terminal Unit (RTU). The RTU is a small vulnerable part, making it a potentially easy prey to attackers. Therefore, to reduce its attack surface, the device should be hardened (4.1.8) and segregated as much from the other systems as possible (4.1.1). Segregation is also one way to protect data flow confidentiality; alternatively, the data may be encrypted (4.1.12.2). Also, to avoid spoofing, the connected device shout authenticate itself (4.1.12.4). Table 25 gives a structured overview of the requirements for the RTU. Table 25: RTU Requirements Requirement Building block reference Communications Segregation* 4.1.1 Device Hardening 4.1.8 Communications Encryption* 4.1.12.2 Device Authentication 4.1.12.4
