Siemens GCP5000 Instruction & Installation Manual page 10

4.12.6 SEAR IIi Operation ....................................................................................................... 4-37
4.12.7 Verify Operation Of MTSS/Gate Tip/Bell Sensor: .......................................................... 4-37
4.12.8 Verify Operation of Ground Fault Testers (GFTs): ........................................................ 4-38
4.12.9 Verify Operation of iLOD .............................................................................................. 4-39
4.12.10 SEAR IIi Communication .............................................................................................. 4-39
4.12.11 SEAR IIi Alarms ........................................................................................................... 4-40
4.13 Crossing Monitoring by SEAR IIi ....................................................................................... 4-40
5 BASIC APPLICATION GUIDELINES AND PROGRAMMING .................................................. 5-1
5.1 Introduction and Overview ................................................................................................... 5-1
5.2 PSO Application and Programming ..................................................................................... 5-3
5.2.1 Introduction And Overview ............................................................................................. 5-3
5.2.2 Logic Programming ........................................................................................................ 5-3
5.2.2.1 Directional Stick Logic and Stick Cancel Timer .......................................................... 5-4
5.2.2.2 Stick Cancellation Timer ............................................................................................ 5-4
5.2.2.3 Typical Stick Operation and Logic ............................................................................. 5-4
5.2.3 External Track Circuit Replacing an Internal Receiver or Island .................................... 5-11
5.2.4 Multiple Track Circuits Used to form an Approach ........................................................ 5-11
5.2.5 Stick Cancel Input ........................................................................................................ 5-12
5.2.6 Out Of Service (OOS) Operations ................................................................................ 5-13
5.2.6.1 Component OOS Options ....................................................................................... 5-14
5.2.6.2 Returning an OOS Function to Service .................................................................... 5-17
5.2.7 Wrap Circuits ............................................................................................................... 5-17
5.2.8 Wrapped PSO module Operation ................................................................................. 5-17
5.2.8.1 When a Track is Wrapped ....................................................................................... 5-18
5.3 Logic Programming ........................................................................................................... 5-18
5.3.1 Logic: PSO ANDing...................................................................................................... 5-19
5.3.2 Logic: Features ............................................................................................................ 5-21
5.3.3 Logic: AND Gates ........................................................................................................ 5-22
5.3.4 Logic: OR Gates .......................................................................................................... 5-24
5.3.5 Logic: Equation ............................................................................................................ 5-25
5.3.6 Logic Timers ................................................................................................................ 5-26
5.3.7 Logic: Internal I/O ......................................................................................................... 5-27
5.3.8 General Purpose Logic Inputs and Outputs .................................................................. 5-29
5.4 Spread Spectrum Radio .................................................................................................... 5-30
5.5 Vital Link Communications ................................................................................................ 5-31
5.5.1 ATCS Addressing and ATCS Offsets............................................................................ 5-31
5.5.1.1 Setting the ATCS Address of the Remote Site ......................................................... 5-33
5.5.2 Message Update and Timeouts .................................................................................... 5-34
SIG-00-22-02
Version: B.1
x
JUNE 2022 (Revised September 2022)