3.3.1 Setting Guidelines 349
4 Trip Circuit Supervision 350
4.1 Trip Circuit Supervision Scheme 1 350
4.1.1 Resistor Values 350
4.1.2 PSL for TCS Scheme 1 351
4.2 Trip Circuit Supervision Scheme 2 351
4.2.1 Resistor Values 352
4.2.2 PSL for TCS Scheme 2 352
4.3 Trip Circuit Supervision Scheme 3 352
4.3.1 Resistor Values 353
4.3.2 PSL for TCS Scheme 3 353
Chapter 16 Digital I/O and PSL Configuration 355
1 Chapter Overview 357
2 Configuring Digital Inputs and Outputs 358
3 Scheme Logic 359
3.1 PSL Editor 360
3.2 PSL Schemes 360
3.3 PSL Scheme Version Control 360
4 Configuring the Opto-Inputs 361
5 Assigning the Output Relays 362
6 Fixed Function LEDs 363
6.1 Trip LED Logic 363
7 Configuring Programmable LEDs 364
8 Function Keys 366
9 Control Inputs 367
Chapter 17 Electrical Teleprotection 369
1 Chapter Overview 371
2 Introduction 372
3 Teleprotection Scheme Principles 373
3.1 Direct Tripping 373
3.2 Permissive Tripping 373
4 Implementation 374
5 Configuration 375
6 Connecting to Electrical InterMiCOM 377
6.1 Short Distance 377
6.2 Long Distance 377
7 Application Notes 378
Chapter 18 Communications 381
1 Chapter Overview 383
2 Communication Interfaces 384
3 Serial Communication 385
3.1 EIA(RS)232 Bus 385
3.2 EIA(RS)485 Bus 385
3.2.1 EIA(RS)485 Biasing Requirements 386
3.3 K-Bus 386
4 Standard Ethernet Communication 388
4.1 Hot-Standby Ethernet Failover 388
5 Redundant Ethernet Communication 389
5.1 Supported Protocols 389
5.2 Parallel Redundancy Protocol 390
5.2.1 PRP Application in the Substation 391
P14x Contents
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