
Table of Contents
5.1.1.4 Communication Ports — Overview................................. 62
5.1.1.4.1 CS I/O Port............................................................ 63
5.1.1.4.2 RS-232 Ports......................................................... 63
5.1.1.4.3 Peripheral Port ...................................................... 63
5.1.1.4.4 SDI-12 Ports ......................................................... 64
5.1.1.4.5 SDM Port .............................................................. 64
5.1.1.4.6 CPI Port and CDM Devices — Overview ............ 64
5.1.1.4.7 Ethernet Port ......................................................... 64
5.1.1.5 Grounding — Overview .................................................. 64
5.2 Measurements — Overview .............................................................. 65
5.2.1 Time Keeping — Overview ....................................................... 65
5.2.2 Analog Measurements — Overview .......................................... 66
5.2.2.1 Voltage Measurements — Overview............................... 66
5.2.2.1.1 Single-Ended Measurements — Overview ........... 68
5.2.2.1.2 Differential Measurements — Overview .............. 69
5.2.2.2 Current Measurements — Overview ............................... 69
5.2.2.3 Resistance Measurements — Overview .......................... 70
5.2.2.3.1 Voltage Excitation ................................................ 70
5.2.2.4 Strain Measurements — Overview.................................. 71
5.2.3 Pulse Measurements — Overview ............................................. 71
5.2.3.1 Pulses Measured .............................................................. 72
5.2.3.2 Pulse Input Channels ....................................................... 72
5.2.3.3 Pulse Sensor Wiring......................................................... 73
5.2.4 Period Averaging — Overview .................................................. 74
5.2.5 Vibrating Wire Measurements — Overview.............................. 74
5.2.6 Reading Smart Sensors — Overview ......................................... 75
5.2.6.1 SDI-12 Sensor Support — Overview .............................. 75
5.2.6.2 RS-232 — Overview ....................................................... 76
5.2.7 Field Calibration — Overview ................................................... 77
5.2.8 Cabling Effects — Overview ..................................................... 77
5.2.9 Synchronizing Measurements — Overview............................... 77
5.2.9.1 Synchronizing Measurements in the CR1000 —
Overview...................................................................... 77
5.2.9.2 Synchronizing Measurements in a Datalogger
Network — Overview.................................................. 77
5.3 Data Retrieval and Comms — Overview .......................................... 77
5.3.1 Data File Formats in CR1000 Memory ...................................... 78
5.3.2 Data Format on Computer .......................................................... 78
5.3.3 Mass-Storage Device.................................................................. 78
5.3.4 Memory Card (CRD: Drive) — Overview................................. 78
5.3.4.1 Comms............................................................................. 79
5.3.4.2 Direct with Adapter to PC ............................................... 79
5.3.5 Comms Protocols ....................................................................... 79
5.3.5.1 PakBus Comms — Overview .......................................... 79
5.3.6 Alternate Comms Protocols — Overview .................................. 80
5.3.6.1 Modbus — Overview....................................................... 81
5.3.6.2 DNP3 — Overview.......................................................... 81
5.3.6.3 TCP/IP — Overview........................................................ 81
5.3.7 Comms Hardware — Overview ................................................. 82
5.3.8 Keyboard/Display — Overview ................................................. 82
5.3.8.1 Character Set.................................................................... 83
5.3.8.2 Custom Menus — Overview ........................................... 83
5.4 Measurement and Control Peripherals — Overview ......................... 84
5.5 Power Supplies — Overview ............................................................ 85
5.6 CR1000 Setup — Overview .............................................................. 85