Campbell CR5000 User Guide
CR5000 Measurement and
Control System Overview
Revision: 11/06
Copyright © 2000-2006
Campbell Scientific, Inc.
CR5000 MEASUREMENT AND CONTROL SYSTEM OVERVIEW
TABLE OF CONTENTS
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PAGE
OV1. PHYSICAL DESCRIPTION
OV1.1 Measurement Inputs ........................................................................................................... OV-1
OV1.2 Communication and Data Storage...................................................................................... OV-4
OV1.3 Power Supply and AC Adapter ........................................................................................... OV-5
OV2. MEMORY AND PROGRAMMING CONCEPTS
OV2.1 Memory ............................................................................................................................... OV-5
OV2.2 Measurements, Processing, Data Storage ......................................................................... OV-5
OV2.3 Data Tables......................................................................................................................... OV-6
OV3. PC9000 APPLICATION SOFTWARE
OV3.1 Hardware and Software Requirements .............................................................................. OV-6
OV3.2 PC9000 Installation............................................................................................................. OV-6
OV3.3 PC9000 Software Overview................................................................................................ OV-7
OV4. KEYBOARD DISPLAY
OV4.1 Data Display...................................................................................................................... OV-12
OV4.2 Run/Stop Program ............................................................................................................ OV-16
OV4.3 File Display........................................................................................................................ OV-17
OV4.4 Configure Display.............................................................................................................. OV-19
OV5. SPECIFICATIONS.......................................................................................................... OV-20
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CR5000 OVERVIEW TABLE OF CONTENTS
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CR5000 Overview
The CR5000 provides precision measurement capabilities in a rugged, battery-operated
package. The system makes measurements at a rate of up to 5,000 samples/second with
16-bit resolution. The CR5000 includes CPU, keyboard display, power supply, and analog
and digital inputs and outputs. The on-board, BASIC-like programming language includes
data processing and analysis routines. PC9000 Software provides program generation
and editing, data retrieval, and realtime monitoring.
19 20
17 18
15 16
13 14
11 12
910
56
34
12
SE
2
1
HL
HL
HL
DIFF
25
24
23
22
21
SE
12
11
H
L
H
L
H
DIFF
VX1
VX3
VX2
VX4
G
C6
C5
C7
G
C8
C
O
N
TR
O
L
I/O
PO
L
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g
a
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ta
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CR5000 MICROLOGGER
78
4
3
HL
28
27
26
14
13
HL
L
CAO1
CAO2
IX1
IX2
>2.0V
G
<0.8V
5V
5V
W
E
R
U
P
7
6
5
HL
HL
HL
34
33
32
31
30
29
17
16
15
L
H
HL
HL
CONTRO
IX3
IX4
IXR
P1
P1
C1C2C3
G
SDI-12
12V
G
SDM-C2
SDM-C1
SDM-C3
G
12V
P
O
W
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D E F
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ESC
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35
H
G
R
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36
18
L
L I/O
C4
SW-12
SW-12
T
CURSOR
ALPHA
SHIFT
Spc Cap
BKSPC
$ Q Z
ENTER
HL
37
H
G
G
POWER IN
11 - 16 VDC
9
38
19
L
CAUTION
DC ONLY
12V
G
12V
MADE IN USA
10
HL
CS I/O
40
39
20
L
H
RS-232
COMPUTER
(OPTICALLY ISOLATED)
GROUND
LUG
pc card
status
FIGURE OV1-1. CR5000 Measurement and Control System
OV1. Physical Description
Figure OV1-2 shows the CR5000 panel and the associated program
instructions. Unless otherwise noted, they are measurement instructions
(Section 7).
OV1.1 Measurement Inputs
OV1.1.1 Analog Inputs
There are 20 differential or 40 single-ended inputs for measuring voltages up
to ±5 V. A thermistor installed in the wiring panel can be used to measure the
reference temperature for thermocouple measurements, and a heavy copper
grounding bar and connectors combine with the case design to reduce
temperature gradients for accurate thermocouple measurements. Resolution on
the most sensitive range is 0.67 µV
OV-1
CR5000 Overview
t
SWITCHED
VOLTAGE
EXCITATION
(VX)
Excite
BrFull
BrFull6w
BrHalf
BrHalf3W
BrHalf4W
12
1
HL
21
11
HL
VX1
34
2
HL
22
23 24
12
HL
VX2
VX3
SE
DIFF
SE
DIFF
CONTINUOUS ANALOG
OUTPUTS (CAO)
ExciteCAO
SWITCHED CURRENT
EXCITATION (IX)
ExciteI
Resistance
56
78
910
3
4
HL
HL
25 26
27 28
13
14
HL
HL
VX4
CAO1
CAO2
IX1
IX2
IX3
5
HL
29 30
15
HL
IX4
11 12
6
HL
31 32
16
HL
IXR
P1
P2
13 14
7
HL
33 34
17
HL
PULSE INPUTS
PulseCount
PulseCountRese
15 16
17 18
8
HL
HL
35 36
37 38
18
HL
HL
CONTROL I/O
C1C2C3
C4
CONTROL I/O
PortGet
PortSet
ReadIO
TimerIO
WriteIO
19 20
9
10
HL
39 40
19
20
HL
COMPUTER RS-232
CS I/O
(OPTICALLY ISOLATED)
ANALOG INPUTS
Voltage
VoltDiff
VoltSE
Thermocouple
TCDiff
TCSE
Bridge measurements
(use VX)
BrFull
BrFull6W
BrHalf
BrHalf3W
BrHalf4W
Others
Resistance
PanelTemp
PeriodAvg
AM25T
SIGNAL
GROUND (
FOR
Analog
Pulse
Excitation
CS I/O
DSP4 (Data Tables and Output)
),
GC5C6C7C8G>2.0VG>0.8V5V5VGSDI-12
CONTROL I/O POWER
Logan, U
CR5000 MICROLOGGER
POWER UP
PowerOff
(program
control)
UP
tah
SDI-12 12 V
SDM CONNECTIONS
CS7500
CSAT3
SDMINT8
SDMSpeed
SDMTrigger
12VGSDM-C1
SDM-C2
SDM-C3G12VGSW-12
POWER OUT
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,
A
Hm
1
I
H
G
J K
Graph/
char
4
S
R
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P
End
7
(
- +
Del
SN:
SW-12
G
CAUTION
DC ONLY
G12V
POWER IN
11 - 16 VDC
GROUND
LUG
pc card
status
RS-232
CHARGER INPUT
GROUND LUG
F
C
E
B
D
CURSOR
PgUp
ALPHA
3
2
O
L
N
M
X
W
PgDn
< = >
ESC
6
Y
9
SHIFT
ap
pc C
S
BKSPC
Z
$ Q
ENTER
5
V
U
8
* / )
Ins
0
POWER IN
POWER GROUND (G),
FOR
5V
SW-12
12V
MADE IN USA
PCMCIA PC CARD
CardOut (Data Tables
and Output)
SWITCHED 12 VOLTS SW-12
PortSet
SW12
OV-2
FIGURE OV1-2. CR5000 Panel and Associated Instructions.
OV1.1.2 Signal Grounds ( )
The Signal Grounds ( ) should be used as the reference for Single-ended
Analog inputs, Excitation returns, and sensor shield wires.
Signal returns from the CAO and Pulse channels should use the
located on the CAO and Pulse terminal strip to minimize current flow through
grounds on the analog terminal strips.
the
OV1.1.3 Power Grounds (G)
The Power Grounds (G) should be used as the returns for the 5V, SW12, 12V,
and C1-C8 outputs. Use of the G grounds for these outputs with potentially
large currents will minimize current flow through the analog section, which
can cause Single-ended voltage measurement errors.
OV1.1.4 Ground Lug
The large ground lug is used to connect a heavy gage wire to earth ground. A
good earth connection is necessary fix the ground potential of the datalogger
and to send to earth transients that come in on either the G or
are shunted to ground via the spark gaps protecting other inputs.
CR5000 Overview
terminals
terminals or
OV1.1.5 Power In
The G and 12V terminals on the unplugable Power In connector are for
connecting power from an external battery to the CR5000. These are the only
terminals that can be used to input battery power; the other 12V and SW-12V
terminals are out only. Power from this input will not charge internal CR5000
batteries. Power to charge the internal batteries (17-28 VDC or 18 VRMS AC)
must be connected to the charger input on the side of the LA battery back.
OV1.1.6 Switched 12 Volts SW-12
The SW-12 terminals provide an unregulated 12 volts that can be switched on
and off under program control.
OV1.1.7 Switched Voltage Excitation (VX)
Four switched excitation channels provide precision programmable voltages
within the ±5 Volt range for bridge measurements. Each analog output will
provide up to 50 mA between ±5 V.
OV1.1.8 Switched Current Excitation (IX)
Four Switched Current Excitation channels provide precision current
excitations programmable within ±2.5 mA for resistance or bridge
measurements.
OV1.1.9 Continuous Analog Outputs (CAO)
Two Continuous Analog Outputs (CAO) with individual outputs under
program control for proportional control (e.g., PID algorithm) and waveform
generation. Each analog output will provide up to 15 mA between ±5 V.
OV-3
CR5000 Overview
OV1.1.10 Control I/O
OV1.1.11 Pulse Inputs
OV1.1.12 Power Up
There are 8 digital Input/Output channels (0 V low, 5 V high) for frequency
measurement, digital control, and triggering.
Two Pulse input channels can count pulses from high-level (5 V square wave),
switch closure, or low-level A/C signals.
The CR5000 allows shutting off power under program control. The Power Up
inputs allow an external signal to awaken the CR5000 from a powered down
state (PowerOff, Section 9). When the CR5000 is in this power off state the
ON Off switch is in the on position but the CR5000 is off. If the "<0.5 " input
is switched to ground or if the ">2" input has a voltage greater than 2 volts
applied, the CR5000 will awake, load and run the “run on power-up” program.
If the "< 0.5" input continues to be held at ground while the CR5000 is
powered on and goes through its 2-5 second initialization sequence, the
CR5000 will not run “run on power-up” program.
OV1.1.13 SDM Connections
The Synchronous Device for Measurement (SDM) connections C1,C2, and C3
along with the adjacent 12 volts and ground terminals are used to connect
SDM sensors and peripherals.
OV1.2 Communication and Data Storage
OV1.2.1 PCMCIA PC Card
One slot for a Type I/II/III PCMCIA card. The keyboard display is used to
check card status. The card must be powered down before removing it. The
card will be reactivated if not removed.
CAUTION
OV1.2.2 CS I/O
OV1.2.3 Computer RS-232
Removing a card while it is active can cause garbled data
and can actually damage the card. Do not switch off the
CR5000 power while the card is present and active.
A 9-pin serial I/O port supports CSI peripherals.
OV-4
RS-232 Port
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