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Campbell DS 70 manual available for free PDF download: Operator's Manual
Campbell DS 70 Operator's Manual (253 pages)
DS 70;
Brand:
Campbell
| Category:
Controller
| Size: 2.02 MB
Table of Contents
Table of Contents
5
Instruction Set Basics
6
Pin Serial Input/Output
6
Telecommunications
6
Appendix B. Cr10 Prom Signature and Optional Software
8
Cr10 Measurements
8
Appendix G. Changing Ram or Prom Chips
8
Ov1. Physical Description
13
OV1.1 Wiring Panel
13
OV1.2 Connecting Power to the CR10
19
Ov2. Memory and Programming Concepts
19
OV2.1 Internal Memory
19
Input/Output Instructions
20
OV2.2 CR10 Instruction Types
21
OV2.3 Program Tables, Execution Interval and Output Intervals
21
Ov3. Communicating with Cr10
22
OV3.1 CR10 Keyboard/Display
23
OV3.2 Using the PC208 Terminal Emulator (Graphterm
23
OV3.3 ASCII Terminal or Computer with Terminal Emulator
23
Ov4. Programming the Cr10
24
OV4.1 Functional Modes
24
OV4.2 Key Definition
25
OV4.3 Programming Sequence
25
OV4.4 Instruction Format
26
OV4.5 Entering a Program
26
Ov5. Programming Examples
27
OV5.1 Sample Program 1
28
OV5.2 Sample Program 2
29
OV5.3 Editing an Existing Program
30
Ov6. Data Retrieval Options
32
Ov7. Specifications
36
1 Functional Modes
39
Program Tables - *1, *2, and *3 Modes
39
Setting and Displaying the Clock - *5 Mode
40
Displaying/Altering Input Memory, Flags, and Ports - *6 Mode
41
Sequence of Time Parameters in *5 Mode
41
Mode Commands
41
Compiling and Logging Data - *0 Mode
42
Memory Allocation - *A
42
Memory Allocation in CR10
44
Description of *A Mode Data
44
Memory Testing and System Status - *B
46
Description of *B Mode Data
46
C Mode -- Security
47
D Mode -- Save or Load Program
47
C Mode Entries
47
D Mode Commands
47
ASCII and Storage Module Command Options
49
Program Load Error Codes
49
2 Internal Data Storage
52
Final Storage Areas, Output Arrays, and Memory Pointers
52
Ring Memory Representation of Final Data Storage
52
Output Array ID
54
Data Output Format and Range Limits
55
Displaying Stored Data on Keyboard/Display - *7 Mode
55
Resolution Range Limits of CR10 Data
55
Parameter Data Types
57
Repetitions
57
Entering Negative Numbers
57
Indexing Input Locations and Ports
57
Instruction Set Basics
57
Voltage Range and Overrange Detection
58
Output Processing
58
Input Voltage Ranges and Codes
58
Use of Flags: Output and Program Control
59
Flag Description
59
Program Control Logical Constructions
60
If Then/Else Execution Sequence
60
Instruction Memory and Execution Time
61
Logical and Construction
61
Logical or Construction
61
Processing Instruction Memory and Execution Times
64
Output Instruction Memory and Execution Times
64
Error Codes
66
Program Control Instruction Memory and Execution Times
66
4 External Storage Peripherals
69
On-Line Data Transfer - Instruction 96
69
Output Device Codes for Instruction 96 and *8 Mode
70
Manually Initiated Data Output - *8 Mode
71
Cassette Tape Option
71
Mode Entries
71
Cassette Recorder Specifications
72
Printer Output Formats
73
Format 2 Specifications
73
Storage Module (SM192/716)
75
Example of CR10 Printable ASCII Output Format
75
Mode -- Storage Module Commands
76
Telecommunications Commands
80
5 TELECOMMUNICATIONS Telecommunications Commands
83
Remote Programming of the CR10
83
Pin Serial Input/Output
84
Pin Description
84
Enabling and Addressing Peripherals
85
Hardware Enabled and Synchronously Addressed Peripherals
85
Ring Interrupts
86
Interrupts During Data Transfer
86
Servicing of Ring Interrupts
86
Modem/Terminal Peripherals
87
Synchronous Device Communication
87
Addressing Sequence for the RF Modem
88
Modem/Terminal and Computer Requirements
89
SD Addresses
89
SC32A Pin Description
90
DTE Pin Configuration
90
7 Measurement Programming Examples
94
Single-Ended Voltage - LI200S Silicon Pyranometer
94
Wiring Diagram for LI200S
94
Differential Voltage Measurement
95
Typical Connection for Active Sensor with External Battery
95
Thermocouple Temperatures Using the Optional CR10TCR to Measure the Reference Temperature
96
Thermocouple Temperatures Using an External Reference Junction
96
CR10TCR Mounted on the CR10 Wiring Panel
96
Temperature Probe
97
Temperature and RH Probe
97
Thermocouples with External Reference Junction
97
Anemometer with Photochopper Output
98
Wiring Diagram for Anemometer
98
Tipping Bucket Rain Gage with Long Leads
99
Ohm PRT in 4 Wire Half Bridge
99
Wiring Diagram for Rain Gage with Long Leads
99
Wiring Diagram for PRT in 4 Wire Half Bridge
100
Ohm PRT in 3 Wire Half Bridge
101
Wire Half Bridge Used to Measure 100 Ohm PRT
101
Ohm PRT in 4 Wire Full Bridge
102
Full Bridge Schematic for 100 Ohm PRT
102
Lysimeter - 6 Wire Full Bridge
104
Wiring Diagram for Full Bridge Pressure Transducer
104
Lysimeter Weighing Mechanism
104
Wire Full Bridge Connection for Load Cell
105
Gypsum Soil Moisture Block
106
Nonlinear Thermistor in Half Bridge (Model 101 Probe)
107
Thermistor Probes Connected to CR10
107
Water Level - Geokon'svibrating Wire Pressure Sensor
108
A Vibrating Wire Sensor
108
Calibration Data for Sensor 3998
109
Well Monitoring Example
109
Hook up to AVW1
111
Paroscientific "T" Series Pressure Transducer
112
Input Frequency Gain Codes
112
Cr10/Paroscientific "T" Series Transducer Wiring Diagram
114
SDM Peripherals
117
Paroscientific Pressure Transducer Processing
117
Computation of Running Average
120
Processing and Program Control Examples
120
Rainfall Intensity
121
Processing and Program Control Examples
122
AM416 Wiring Diagram for Thermocouple and Soil Moisture Block Measurements
123
Sub 1 Minute Output Interval Synched to Real Time
124
Interrupt Subroutine Used to Count Switch Closures (Rain Gage)
124
Connections for Rain Gage
125
SDM-A04 Analog Output Multiplexer to Strip Chart
126
Converting 0-360 Wind Direction Output to 0-540 for Strip Chart
127
Use of 2 Final Storage Areas - Saving Data Prior to Event
128
Logarithmic Sampling Using Loops
129
9 Input/Output Instructions
133
Pulse Count Configuration Codes
135
Thermocouple Type Codes
140
Voltage and Temperature Ranges for Thermocouples if the Reference Is 20°C
140
Port Configuration Option Codes
142
11 Output Processing Instructions
162
12 Program Control Instructions
170
Flag Description
170
Loop Example: Block Data Transform
173
Example: Loop with Delay
174
Comparison Codes
174
Fast and Slow Measurement Sequence
180
Cr10 Measurements
180
Single-Ended and Differential Voltage Measurements
181
Timing of Single-Ended Measurement
181
Differential Voltage Measurement Sequence
181
The Effect of Sensor Lead Length on the Signal Settling Time
182
Exponential Decay, Percent of Maximum Error Vs. Time in Units of Τ
183
Input Voltage Rise and Transient Decay
183
Typical Resistive Half Bridge
184
Source Resistance Model for Half Bridge Connected to the CR10
184
Properties of Three Belden Lead Wires Used by Campbell Scientific
185
Model 024A Wind Direction Sensor
185
Settling Error, in Degrees, for 024A Wind Direction Sensor Vs. Lead Length
186
Resistive Half Bridge Connected to Single-Ended CR10 Input
186
Measured Peak Excitation Transients for 1000 Foot Lengths of Three Belden Lead Wires Used by Campbell Scientific
187
Summary of Input Settling Data for Campbell Scientific Resistive Sensors
188
Maximum Lead Length Vs. Error for Campbell Scientific Resistive Sensors
188
Source Resistances and Signal Levels for YSI #44032 Thermistor
189
Half Bridge Configuration for YSI #44032 Thermistor Connected to CR10
190
Thermocouple Measurements
191
Measuring Input Settling Error with the CR10
191
Incorrect Lead Wire Extension on Model 107 Temperature Sensor
191
Limits of Error for Thermocouple Wire
192
Thermistor Polynomial Error
193
Example of Errors in Thermocouple Temperature
195
Bridge Resistance Measurements
196
Diagram of Junction Box
196
Excitation and Measurement Sequence for 4 Wire Full Bridge
198
Calculating Resistance Values from Bridge Measurement
199
Resistance Measurements Requiring AC Excitation
200
AC Excitation and Measurement Sequence for AC Half Bridge
200
Calibration Process
201
Model of Resistive Sensor with Ground Loop
201
14 Installation and Maintenance
204
Protection from the Environment
204
Power Requirements
204
Typical Current Drain for Common CR10 Peripherals
204
Campbell Scientific Power Supplies
205
Typical Alkaline Battery Service and Temperature
207
PS12 12 Volt Power Supply and Charging Regulator
207
PS12LA Battery and AC Transformer Specifications
209
Solar Panels
210
Direct Battery Connection to the CR10WP Wiring Panel
210
Vehicle Power Supply Connections
210
Grounding
211
Wiring Panel Grounding Diagram and Excitation Control
211
Wiring Panel
212
Switched 12 Volt
212
Use of Digital I/O Ports for Switching Relays
212
Relay Driver Circuit with Relay
213
Power Switching Without Relay
213
Maintenance
214
Glossary
216
PROM Signature and Version
221
Available Proms/Library Options
221
B.2 Available Proms/Library Options
221
Description of Library Options Not in Standard Manual
221
CR10 Library Options
221
CR10 PROM Signature
222
Telecommunications Command with Binary Responses
223
Final Storage Format
225
Generation of Signature
227
C.3 Generation of Signature
227
D. Cr10 37 Pin Port Description
229
Ascii Table
231
Disassembling the CR10
233
Installing New RAM Chips in Cr10S with 16K RAM
233
Installing New PROM
233
Installing 4K Program Memory PROM
233
Disassembling CR10
234
Jumper Settings for Different RAM Configurations
235
Jumper Settings and Locations
236
List of Tables
238
List of Figures
242
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