Pulsar blackbox 134, Instruction Manual

Page: 7 / 121

Error Checking ................................................................................................................................................ 84
Message Timings .................................................................................................................................................... 86
Mode of Transmission ................................................................................................................................... 86
Wait Period ...................................................................................................................................................... 86
Latency ............................................................................................................................................................. 87
Message Transmission Time ........................................................................................................................ 87
Modbus Functions ................................................................................................................................................... 88
Function 1: Read Output Status ............................................................................................................................ 88
Example: Query: reading relay 2 to 4 .......................................................................................................... 88
Function 2: Read Input Status .............................................................................................................................. 89
Example: Query: reading digital inputs 3-7 ................................................................................................ 89
Function 3: Read Holding Registers (Static Parameters) .................................................................................. 90
Example: Query: reading parameter P856 .................................................................................................. 90
Function 4: Read Input Registers (Common Dynamic Variables).................................................................. 91
List of Common Dynamic Variables........................................................................................................... 91
Example: Query: reading level 1 (current level on transducer 1) ............................................................ 92
Function 5: Force Single Coil................................................................................................................................ 93
Example: Query: Force coil 2 to be ON ...................................................................................................... 93
Function 6: Write Single Register (Static Parameters) ...................................................................................... 94
Example: Query: writing to P100 = 1 .......................................................................................................... 94
Function 8: Diagnostic Loopback......................................................................................................................... 95
Example: Command....................................................................................................................................... 95
Example: Reply ............................................................................................................................................... 95
Function 16: Write Multiple Registers (Static Parameters) .............................................................................. 96
Example: Query: writing to P100 = 1, P101=2 .......................................................................................... 96
Chapter 7 List Of Static Parameters............................................................................................................................ 97
Application ............................................................................................................................................................... 97
Operation .......................................................................................................................................................... 97
Distances .......................................................................................................................................................... 97
Remote Alarm ................................................................................................................................................. 97
Relays Set up............................................................................................................................................................ 97
Relay 1 .............................................................................................................................................................. 97
Relay 2 .............................................................................................................................................................. 98
Data Logs ................................................................................................................................................................. 98
Temperature Log ............................................................................................................................................ 98
Volume ..................................................................................................................................................................... 98
Conversion ....................................................................................................................................................... 98
Volume Break points...................................................................................................................................... 99
Display .................................................................................................................................................................... 100
Options ........................................................................................................................................................... 100
Fail Safe .......................................................................................................................................................... 100
Compensation ........................................................................................................................................................ 101
Offset .............................................................................................................................................................. 101
Temperature ................................................................................................................................................... 101
Stability ................................................................................................................................................................... 101
Damping ......................................................................................................................................................... 101
Filters .............................................................................................................................................................. 101
Echo Processing .................................................................................................................................................... 101
Transducer 1 .................................................................................................................................................. 101
System ..................................................................................................................................................................... 102
Passcode ......................................................................................................................................................... 102
System Information ...................................................................................................................................... 102
Date and Time ............................................................................................................................................... 102
Daylight Saving............................................................................................................................................. 102
Chapter 8 Troubleshooting ....................................................................................................................................... 103