Table of Contents
8.1.8.5 SDI-12 Sensor Cabling .................................................. 422
8.1.9 Synchronizing Measurements — Details ................................. 422
8.1.9.1 Synchronizing Measurement in the CR3000 —
Details ........................................................................ 422
8.1.9.2 Synchronizing Measurements in a Datalogger
Network — Details .................................................... 422
8.2 Switched-Voltage Output — Details ............................................... 424
8.2.1 Switched-Voltage Excitation .................................................... 425
8.2.2 Switched-Current Excitation (IX Terminals) ........................... 425
8.2.3 Continuous-Regulated (5V Terminal) ...................................... 426
8.2.4 Continuous-Analog Out (CAO Terminal) ................................ 426
8.2.5 Continuous-Unregulated Voltage (12V Terminal) ................... 426
8.2.6 Switched-Unregulated Voltage (SW12 Terminal) ................... 426
8.3 PLC Control — Details ................................................................... 427
8.3.1 Terminals Configured for Control ............................................ 428
8.4 Measurement and Control Peripherals — Details ........................... 429
8.4.1 Analog Input Modules .............................................................. 429
8.4.2 Analog Output Modules ........................................................... 430
8.4.3 PLC Control Modules — Overview ......................................... 430
8.4.3.1 Relays and Relay Drivers .............................................. 430
8.4.3.2 Component-Built Relays ................................................ 430
8.4.4 Pulse Input Modules ................................................................. 431
8.4.4.1 Low-Level Ac Input Modules — Overview .................. 431
8.4.5 Serial I/O Modules — Details .................................................. 432
8.4.6 Terminal-Input Modules ........................................................... 432
8.4.7 Vibrating Wire Modules ........................................................... 432
8.5 Datalogger Support Software — Details ......................................... 432
8.6 Program and OS File Compression Q and A ................................... 433
8.7 Security — Details .......................................................................... 436
8.7.1 Vulnerabilities .......................................................................... 437
8.7.2 Pass-Code Lockout ................................................................... 438
8.7.3 Passwords ................................................................................. 439
8.7.3.1 .csipasswd ...................................................................... 439
8.7.3.2 PakBus Instructions ....................................................... 439
8.7.3.3 TCP/IP Instructions........................................................ 440
8.7.3.4 Settings — Passwords .................................................... 440
8.7.4 File Encryption ......................................................................... 440
8.7.5 Communication Encryption...................................................... 441
8.7.6 Hiding Files .............................................................................. 441
8.7.7 Signatures ................................................................................. 441
8.7.8 Read Only Variables ................................................................ 441
8.8 Memory — Details .......................................................................... 442
8.8.1 Storage Media .......................................................................... 442
8.8.1.1 Memory Drives — On-Board ........................................ 445
8.8.1.1.1 Data Table SRAM............................................... 445
8.8.1.1.2 CPU: Drive ......................................................... 446
8.8.1.1.3 USR: Drive ......................................................... 446
8.8.1.1.4 USB: Drive ......................................................... 447
8.8.1.2 Memory Card (CRD: Drive) .......................................... 447
8.8.2 Data File Formats ..................................................................... 449
8.8.3 Memory Cards and Record Numbers ....................................... 453
8.8.4 Resetting the CR3000 ............................................................... 454
8.8.4.1 Full Memory Reset ........................................................ 455
8.8.4.2 Program Send Reset ....................................................... 455
8.8.4.3 Manual Data-Table Reset .............................................. 455