Suitable for use in utilities and industrial environments, the SEL-3505 Real-Time Automation Controller (RTAC) is a lower-voltage version of the SEL-3530 RTAC. The SEL-3505 RTAC is compact and delivers all the standard features of an RTAC, making it an excellent option for protocol conversion and secure communication when space is limited.
Low-Cost Protocol Converter—With the RTAC, you can exchange data through DNP3, Modbus, IEC 61850 GOOSE, IEC 60870-5-101/104, LG 8979, SES-92, IEEE C37.118 for synchrophasors, SEL Fast Messaging, and Mirrored Bits communications. The RTAC also allows you to execute output logic for automation, perform math and logic functions, and convert data between protocols.
Dial-Up Engineering Access and SCADA Communications—The RTAC's serial ports, dial-up modem, and high-speed network connection give you several ways to gain secure, remote access.
IED Event Collection With Optional acSELerator Team SEL-5045 Software—By having all of the information from each intelligent electronic device (IED), filtered and processed through the RTAC, you get immediate notification of any issues through the alarms, Sequence of Events logs, and/or email messages. The optional integrated modem in the SEL-3505 expands your communications for SCADA and engineering access.
Time Synchronization—Implement time-code inputs, such as IRIG-B and Network Time Protocol (NTP), to distribute precise time to connected. In the absence of an external time source, use the internal information processor clock to generate IRIG-B for connected devices.
Integrate Power Management With Industrial Control—Provide a powerful gateway between the substation and the factory using EtherNet/IP. This popular industrial protocol facilitates reliable communication between electronic devices in industrial automation systems. Use the RTAC EtherNet/IP adapter to exchange critical data for real-time monitoring, process control, and power system integration.
Built-in accelerometer for intrusion detection
Built-in optical sensor detects opened cabinet door
LEDs simplify diagnostics by indicating transmitted and received activity on each port
Programmable bicolor LEDs
Demodulated IRIG-B input and output for high-accuracy time synchronization
Rugged enclosure withstands EMI, RFI, shock, and vibration
Optional integrated 56 kbps dial-up modem
Wide operating temperature range of –40° to +85°C (–40° to +185°F)
Four EIA-232 serial ports (two EIA-485 software-selectable)
Independent Ethernet ports can be RJ45 or LC fiber
Programmable input, output, and alarm contact
Built-in accelerometer for intrusion detection
LEDs simplify diagnostics by indicating transmitted and received activity on each port
Eight digital input points
Programmable bicolor LEDs
Rugged enclosure withstands EMI, RFI, shock, and vibration
Built-in optical sensor detects opened cabinet door
Wide operating temperature range of –40° to +85°C (–40° to +185°F)
Demodulated IRIG-B input and output for high-accuracy time synchronization
Three serial ports (one in front) are EIA-232/EIA-485 software-selectable
Three programmable Form C binary outputs
Three programmable Form C binary outputs
Three programmable Form C binary outputs
Power
Independent Ethernet ports can be RJ45 or LC fiber
Integrated Security
Make the RTAC the secure access point into your substation or plant using LDAP central authentication, local role-based user authentication, access logs, and secure engineering access. This increases your system security and helps meet regulatory standards.
Simple, Seamless Configuration
Quickly design an integrated automation system that includes protocol conversion, SCADA communications, synchrophasors, time synchronization, data management, and programmable logic. See how easy it is to set up and start using the SEL RTAC with our "How to" video series.
Renowned SEL Reliability and Support
The RTAC is designed and tested to meet or exceed IEEE 1613 and protective relay specifications for harsh environments and to withstand vibration, electrical surges, fast transients, and extreme temperatures. The SEL RTAC operates reliably, even in challenging environments.
Custom Logic
Create your logic solutions in the embedded IEC 61131 logic engine, which comes standard with every automation controller. Build custom user logic and access all system tags, including diagnostics, contact I/O, protocol data, and communications statistics, to provide unparalleled control flexibility.
Protocols
Concentrate and manage data from new and legacy relays and other IEDs using our extensive set of protocols.
Download the acSELerator RTAC library extensions, and take advantage of the flexibility that the SEL RTAC product line provides for your automation and integration applications. These library extensions are prebuilt code components for the advanced users of the SEL RTAC. Once downloaded, the instruction manuals for each of the library extensions will be accessible via the acSELerator RTAC help menu.
You can find the instruction manuals for the general purpose and optional libraries in the Programming Reference.
Library | Application |
---|---|
AnalogCond | Process analog quantities and digital filtering. |
CrossTaskData | Share data between Main and Automation tasks. |
ChannelMonitoring | Provide alerts when a channel deviates from user-defined parameters. |
Dictionaries | Create lookup tables for fast data retrieval. |
DynamicVectors | Store an arbitrary number of items, such as an automatically resizing array. |
Send alerts and notifications from an RTAC to a mail server. | |
IPAliasRedundancy | Share a single IP between two RTACs in a redundancy scheme by using an IP alias. |
MathComplex | Perform mathematical operations on values with real and imaginary components. |
MathMatrix | Perform common matrix operations. |
PacketEncodings | Serialize and deserialize information to/from a socket connection. |
PowerMetering | Perform energy and demand calculations. |
PowerSystemAutomation | Detect synchrony between two independent voltage sources. |
PowerSystemProtection | Identify fault conditions, and unlock the potential of the SEL-2245-42 AC Protection Module. |
Queue | Keep track of ordered lists of objects. |
QuickSort | Sort objects. |
RecordingTriggers | Detect specific conditions in analog and digital signals to initiate the capture of data. |
SELEthernetController | Manage both UDP and TCP raw socket connections. |
SELRand | Generate random numbers. |
SELServerSimulators | Simulate an SEL-351 client. |
SELString | Combine and split strings in constant time. |
SnmpLite | Identify and troubleshoot network connectivity. |
SyslogCollector | Receive Syslog messages from other devices. |
To select any of the following libraries, choose the library as an option in the RTAC hardware configuration.
Library | Application/Details | Dependency Libraries |
---|---|---|
Grid Connection Control | Control the point of common coupling (PCC) between the utility and renewable power generation sources. | Dynamic Disturbance Recorder, File I/O |
Horizon SVP Plus | Turn the RTAC into a synchrophasor vector processor. Detect the onset of uncontrolled wide-area oscillations with SVPplus modal analysis. | None |
Horizon Power System Model | Resolve synchrophasor data streams using a model of the power system. | File I/O |
Dynamic Disturbance Recorder | Collect data from within the logic engine to generate Sequence of Events (SOE), time-aligned CSV, and COMTRADE files in the RTAC. | File I/O |
Meter Trend Recorder | Record analog data in the RTAC, and send data to acSELerator Team SEL-5045 and acSELerator Meter Reports SEL-5630 Software for analysis. | File I/O |
Report Generator/EmailPlus Client | Generate custom reports from data available from the RTAC's logic engine. It is bundled with a fully featured email client that integrates into secure email systems. | File I/O |
FTP Sync | Connect to established S/FTP server infrastructure and automatically push files from the RTAC file system to remote destinations. | File I/O |
File I/O | Read and write files to the RTAC file system. It includes a built-in SFTP/FTP client for sending and receiving files and provides programmatic access to fault and SOE records. | None |
Library | Application |
---|---|
Distribution Automation | Fault location, isolation, restoration, and volt-VAR control of distribution feeders |
Automated System Verification and Monitoring | Protection system monitoring and verification (NERC PRC-005) |
Ground Fault Detection | Ground fault identification for ungrounded power systems |
Product | Revision | Firmware ID | Date Available | Serial Number |
---|---|---|---|---|
SEL-3505 | R148-V1 | SEL-3505-R148-V1-Z000012-D20210320 | 3/24/21 | ~1210830001 |
SEL-3505-3 | R148-V1 | SEL-3505-3-R148-V1-Z000012-D20210320 | 3/24/21 | ~1210830001 |
The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.
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