SEL-3505/SEL-3505-3 Real-Time Automation Controller (RTAC)
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SEL-3505/SEL-3505-3 Real-Time Automation Controller Major Features and Benefits The SEL-3505 and SEL-3505-3 Real-Time Automation Controllers (RTAC) combine the power of IEC 61131 PLC logic with the best features of a communications processor in a small, low-power package. With eight digital inputs, three form C digital outputs, three serial ports, and industry protocols, the SEL-3505-3 is perfect for adding automation to recloser cabinets and other space-limited locations. The SEL-3505 offers four serial ports, one input and one output with an optional internal modem. In this data sheet, SEL-3505 refers to both the SEL-3505 and the SEL-3505-3, unless otherwise specified. ➤ Simple Setup. Build a system quickly using ACSELERATOR RTAC® SEL-5033 Software preconfigured templates for SEL relays and other communications connections. The Tag Processor provides methods for visually mapping data relationships between communications protocols. ➤ Multiple Functions in One Reliable Device. Use a single SEL-3505 as a remote terminal unit (RTU), protocol gateway, logic processor, PAC, engineering port server, event processor, and SER logger/viewer. ➤ Proven Reliability. Depend on a rugged device designed and tested to meet or exceed protective relay standards for vibration, electrical surges, fast transients, and extreme temperatures, as well as meet or exceed IEEE 1613, Standard Environmental and Testing Requirements for Communications Networking Devices in Electric Power Substations. ➤ IEC 61850. Integrate high-speed control schemes between the SEL-3505 and relays with IEC 61850 GOOSE peer-to-peer messaging. ➤ Standard I/O. Wire loose field I/O, with as many as eight binary inputs and as many as three binary outputs, directly to the SEL-3505. Schweitzer Engineering Laboratories, Inc.

Protection Against Malware and Other Cybersecurity Threats. Protect your RTAC system with exe-GUARD®, which uses advanced cryptographic algorithms to authorize the execution of any program or service on the system. Any tasks not approved by the whitelist are blocked from operation. User Security. Assign individual user and role-based account authentication and strong passwords. Use Lightweight Directory Access Protocol (LDAP) for central user authentication. Integrated Security Management. Comply with NERC/CIP user authentication, logging, and port control requirements. Use the integrated...

SCAD A_1_D N P.BO_Q QOO.operCI c DNP Server Tags Source Expression Figure 2 Map Synchrophasor Data Seamlessly Into SCADA Connections Functional Diagram IEC 61131 Logic Engine As depicted in the functional diagram, each SEL-3505 includes an IEC 61131 logic engine that is preconfigured to have access for all system tags, IED data, diagnostics, alarms, security events, and communications statistics for use in integrating your system. The system has no functional separation between those tags mapped for communications protocols and those used in programmable logic. This architecture greatly...

Manage User Accounts and Alarms in Web Server The built-in SEL-3505 web interface provides the ability to manage user accounts and system alarms remotely. Each user account has a unique user name, password, and assigned role that defines system permissions. You can also configure the SEL-3505 to use LDAP central authentication for user account management. The system includes web pages for monitoring user logs and maintaining network policies. Logged tag values and system events provide a systemwide Sequence of Events report. View the logs online or use ODBC connectivity to download them to...

Synchrophasor Integration and Control The SEL-3505 can integrate synchrophasor messages from the IEEE C37.118 protocol into SCADA protocols, such as DNP3 or Modbus. Easily include the source PMU time stamps and time quality attributes in the SCADA message to allow for system-wide usage of synchrophasor data. Within the SEL-3505 logic engine, you can perform complex math and logic calculations on synchrophasor data from C37.118-compliant devices. The SEL-3505 also synchronizes the time clocks in attached devices that accept a demodulated IRIG-B time signal. The SEL-3505 regenerates the...

Secure Communication and User Management The SEL-3505 and SEL accessories offer security for your automation network. Peruser security profiles provide compliance with role-based requirements. The system can employ intrusion detection, notification, and logging to help maintain perimeter integrity. The SEL-3505 includes security features so that your system complies with NERC/CIP requirements for auditing, logging, port control, web authentication, and password restrictions. The SEL-3505 also supports central authentication through your existing LDAP server. By including SEL serial and...

Control Systems The custom logic, communications protocols, and I/O in the SEL-3505, SEL-2411, and SEL-2440 permit you to implement complete control systems, whether you perform discrete sequences, continuous control, monitoring, or asset management. SEL subjects its products to tests for harsh environments, so you can be confident that your control system will work reliably in tough applications. Minimize loop wiring and simplify commissioning by installing controls close to process equipment and integrating them with industry standard communications protocols. Additionally, the SEL-3355...

LEDs simplify diagnostics by indicating transmitted and received activity on each port Rugged enclosure withstands EMI, RFI, shock, and vibration Built-in accelerometer for programmable — intrusion detection Built-in optical sensor detects opened cabinet door Programmable bicolor LEDs with configurable labels provide custom annunciation Demodulated IRIG-B input and output for high-accuracy time synchronization Independent Ethernet ports may be RJ45 or LC fiber LEDs simplify diagnostics by indicating transmitted and received activity on each port Wide operating temperature range Programmable...

Three serial ports (one in front) are EIA-232/EIA-485 software selectable Independent Ethernet ports may be RJ45 or LC Demodulated IRIG-B input and output for high-accuracy time synchronization Three programmable Form C binary outputs Figure 6 SEL-3505-3 Rear-Panel View Figure 7 SEL-3505 Surface-Mount Dimensions LEGEND in (mm) Figure 8 SEL-3505 DIN-Mount Dimensions Schweitzer Engineering Laboratories, Inc.