Measurement WiFi-500 User Manual
WBK40 and WBK41
Thermocouple & Multi-Function I/O Modules
For use with WaveBook/516E and WBK25
Overview ….. 1
What are WBK40 and WBK41? …… 1
Front Panel Connectors …… 2
Rear Panel Connectors ….. 4
Setup …… 5
Hardware Setup …… 5
Software Setup …… 14
Operational Aspects ...... 14
Block Diagrams …… 14
Thermocouple Measurements …… 15
Digital I/O, WBK41 Only …… 16
Synchronous Input Operations …… 16
Output Channel Configuration …… 17
Asynchronous I/O Operations …… 18
Analog Outputs, WBK41 Only (DBK46 Required) …… 19
Using a Temperature Calibrator …… 20
CE Compliance …… 21
Fuse Replacement …… 23
P1 - DB37 Connector Pinout …… 26
P2 – DB37 Connector Pinout (WBK41 Only) …… 27
Specifications …… 28
WBK40 & WBK41 Installation Guide
(p/n 1066-0901)
14 Channel Thermocouple Input Module,
WBK40
Front & Rear Views
WBK41
Multi-Function Thermocouple I/O Module,
Front & Rear Views
Overview
What are WBK40 and WBK41?
The WBK40 is a 14-Channel Thermocouple Input Module. The WBK41 is a Multi-Functional I/O Module. The
latter includes the thermocouple functionality of the WBK40 and additional features, as will be discussed shortly.
Both the WBK40 and WBK41 attach to any one of the three DB25 parallel expansion ports on a WaveBook/516E
or WBK25. Because the modules each have a built-in 16 bit, 200-kHz A/D converter, measurements do not
consume valuable sampling time from the host WaveBook’s 1-MHz A/D converter. For this reason, there are no
speed implications to WaveBook [or other WBK] measurements when a WBK40 or a WBK41 is attached.
Measurements can be made synchronous with the WaveBook/516E, providing precise time correlation between
readings from both measurement devices.
Features common to WBK40 and WBK41
Provides a means of adding from 14 to 224 thermocouple inputs to the WaveBook/516E or WBK25
•
Provides linearized and cold-junction compensated readings for all thermocouple types
•
Exhibits 1.0°C [or better] accuracy for most ranges and TC types
•
Consumes no measurement bandwidth from the WaveBook/516E
•
Detects open thermocouples
•
Additional features of the WBK41
16 Digital I/O Lines (via front panel screw-terminal blocks)
•
24 Digital I/O Lines (via a rear panel 37-pin connector, P2)
•
4 Counter Inputs (via front panel screw-terminal blocks)
•
2 Timer Outputs (via front panel screw-terminal blocks)
•
4 Channel, 16-bit, 100 kHz Analog Output (via front panel screw-terminal
•
blocks; but only when a factory-installed DBK46 option is in place)
Thermocouple & Multifunctional Modules
WBK40 & WBK41, pg. 1
926896
Front Panel Connectors
WBK41 Front Panel
Note that the WBK40’s Front Panel is identical, except it has no Screw-Terminal Blocks (see pg. 3).
WBK41, Front Panel Connectors
DIGITAL I/O
POWER
COUNTER /
TIMER
DACs
pg. 2, WBK40 & WBK41
DCOM
DCOM
Digital I/O, CH0
Digital I/O, CH1
Digital I/O, CH2
Digital I/O, CH3
Digital I/O, CH4
Digital I/O, CH5
Digital I/O, CH6
Digital I/O, CH7
DCOM
DCOM
Digital I/O, CH8
Digital I/O, CH9
Digital I/O, CH10
Digital I/O, CH11
Digital I/O, CH12
Digital I/O, CH13
Digital I/O, CH14
Digital I/O, CH15
DCOM
DCOM
+5V
+5V
ACOM
ACOM
+15V
+15V
-15V
-15V
DCOM
DCOM
Counter Input 0
Counter Input 1
Counter Input 2
Counter Input 3
Timer Output 0
Timer Output 1
DCOM
DPCR
ACOM
ACOM
ACOM
DAC0
ACOM
DAC1
ACOM
DAC2
ACOM
DAC3
The first two terminal blocks include connections
for DCOM (Digital Common) and Digital I/O
channels 0 through 15. 24 additional Digital I/O
lines are available from P2 on the rear panel
(WBK41 only), providing that P2 is not used for
DBK20 Series expansion.
In addition to DCOM (Digital Common) and ACOM
(Analog Common) Connections, the Power
terminal block provides general use power
connections of the following values: +5V, +15V,
and -15V. Power drawn from this terminal block
reduces the total power available for expansion
options.
The Counter/Timer terminal block provides three
Digital Common connectors, four Counter Input
connectors, two Timer Output Connectors, and
one connector for an External DAC Pacer Clock
(DPCR).
The DPCR connection allows the user to supply
an external input clock to pace the DACs.
The DACs terminal block includes six ACOM
(Analog Common) connectors and four connectors
for DACs (Digital-to-Analog Converters). The
DACs are designated:
DAC0, DAC1, DAC2, and DAC3. They are only
available if the DBK46 analog output option is
installed. Note that the DBK46 option is a Factoryinstall option only. Refer to the DBK46 section of
this document module for additional information.
Thermocouple and Multifunctional Modules
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WBK40 Front Panel
WBK40 Front Panel Connectors
The Mini-TC and Analog Common Connectors exist on both the WBK40 and WBK41 Modules.
Item Description (Applies to both WBK40 and WBK41)
through
CH1
Mini-TC Connectors
Analog
Common
CH15
This row contains 14 mini-TC connectors. These are for connecting thermocouples to channels 1 through
7 and to channels 9 through 15. Channels 0 and 8 have no mini-TC connectors, as these two channels
are used for cold-junction compensation (CJC).
Analog Common. This is a dual-pin receptacle located next to the Channel 15 TC connector.
A typical use of the ACOM connection would be to attach the shield of a shielded thermocouple.
If a thermocouple shield is connected to a WBK40 [or WBK41] module, leave the shield
unconnected at the other end of the thermocouple to avoid a ground loop.
The modules’ built-in TC channels are accessed via mini-TC connectors on the front panel. This is true for both the
WBK40 and the WBK41. The 14 built-in TC channels can accept any type of thermocouple, including types J, K, S,
T, E, B, R, and N. The units can be expanded in 14-channel increments using DBK84 TC expansion modules. A
total of 15 DBK84s can be attached to one WBK40 [or WBK41], for a total TC channel capacity of 224 channels.
If more than eight DBK84 modules are to be connected to one WBK40 [or WBK41], additional
power must be supplied. The power can be obtained from DBK32A or DBK33 Auxiliary Power
Supply Cards, housed within a DBK10 expansion chassis.
WBK41’s Counter/Timer functions and 16 bits of Digital I/O are accessed via removable front panel screw-terminal
connectors (see previous figure). Additional Digital I/O and expansion connectors are located at the rear of the
WBK41, as indicated in the following figure.
The WBK41 can be easily expanded beyond its built-in channel capacity. WBK41 systems can include:
up to 224 TC Input Channels by connecting to 15 DBK84 modules •
•
up to 208 Digital I/O Channels by connecting to 4 DBK20 Series cards or up to
272 Digital I/O channels by connecting to 8 DBK208 expansion boards
•
4 Analog Output channels when a DBK46 DAC option card is installed
•
4 Counter Input channels and 2 Timer Output channels
Thermocouple & Multifunctional Modules
WBK40 & WBK41, pg. 3
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Rear Panel Connectors
:
Note
The P2 Connector
does not apply to
WBK40.
Note that WBK40’s Rear Panel is identical, except it has no P2 connector. Page 1 includes a photo of the WBK40 rear panel.
WBK41, Rear Panel Connectors
Item Description
P1
(see page 26 for
pinout)
(WBK41 Only)
P2
(see page 27 for
pinout)
POWER [switch]
POWER IN
LEDs
SYNC Ports (2)
PARALLEL PORT
P1 is an Analog Expansion Port. This DB37 connector is used to connect the WBK40 or WBK41 to an
optional DBK84, 14-Channel Thermocouple Module. The connection is typically made via a CA-37-x
ribbon cable, where “x” equals the number of analog expansion devices.
P2 is a Digital Expansion Port, which is available on the WBK41, but not on the WBK40. This DB37
connector can be used to connect the WBK41 to an optional DBK20 Series device. The connection is
typically made via a CA-37-x ribbon cable, where “x” equals the number of digital expansion devices.
If P2 is not used for DBK20 Series expansion, it allows for 24 bits of Digital I/O, which is in addition to the
16 bits of Digital I/O that are provided by front panel terminal blocks.
Two-position rocker switch with labels “0” for “Power OFF” and “1” for “Power ON.”
A DIN5 connector which accepts power of +10 to +30 VDC. Power is typically supplied via a
TR-40U power adapter.
ACTIVE – Lights when a sample is being converted by the Analog-to-Digital Converter (ADC) that resides
inside the WBK40 or WBK41.
ONLINE – Lights when software is communicating with the WBK40 or WBK41.
POWER – Lights when power is available to the WBK40 or WBK41, and the Power switch is in
the “1” (Power ON) position.
Two SYNC Ports are available to synchronize sampling with other connected devices that have SYNC
ports, for example, the WaveBook/516E. Cable CA-74-1 or CA-74-5 is typically used to provide
a synchronization link from a WBK40 [or WBK41] module to another device.
The Parallel Port is a DB25 connector that is used to connect the WBK40 [or WBK41] to a
WaveBook/516E or WBK25 Ethernet Interface Module.
DBK84
DBK84
WBK41
WaveBook/516E
Channel Input Side Device Interface Side
One of Many Possible WBK41-Based Systems
Note 1: Each DBK84 module requires a unique address setting as explained on page 13.
pg. 4, WBK40 & WBK41
(Note 1)
CA-35-12
CA-37-1T
CA-37-1T
CA-74-1
DBK84
DBK84
WBK41
WaveBook/516E
Thermocouple and Multifunctional Modules
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Setup
Reference Note
For a quick set up involving connecting a WBK40 or a WBK41 to a WaveBook/516E or to a
WBK25, refer to the WBK40 & WBK41 Installation Guide (p/n 1066-0901). For convenience,
a copy has been placed after the specifications section of this document.
Hardware Setup, for WBK40 and WBK41
Electrical Shock Hazard! To avoid possible injury and equipment damage, turn off power to
devices and connected equipment prior to setup.
Connecting to the Channel Input Side
WBK40 and WBK41 each have a row of 14 mini-TC connectors. These are for connecting thermocouples to
channels 1 through 7 and to channels 9 through 15. Channels 0 and 8 have no mini-TC connectors, as these two
channels are used for cold-junction compensation (CJC). The connection information regarding thermocouples is
included in the upcoming sub-sections, Thermocouple Connections (page 6) and Open Thermocouple Detection
(page 7).
In addition to thermocouple connections, the WBK41 can accept signal lines for the following:
WARNING
16 Digital I/O Lines (via front panel screw-terminal blocks)
•
24 Digital I/O Lines (via a rear panel 37-pin connector, P2)
•
4 Counter Inputs (via front panel screw-terminal blocks)
•
2 Timer Outputs (via front panel screw-terminal blocks)
•
4 Channel, 16-bit, 100 kHz Analog Output (via front panel screw-terminal blocks;
•
but only when a factory-installed DBK46 option is in place)
System Example
144 Digital I/O
(via 3 DBK21 Cards in a DBK10 Chassis)
14 Thermocouples
each DBK84 and to the WBK41 (or WBK40).
For WBK41
(CNTR), Timer Output (TMR), and Analog
Output (DACS) lines can be connected to
the associated terminal block screw
connectors. (See following photo.)
can be connected to
: Digital I/O, Counter Input
DBK10 with
3 DBK21 Cards
DBK84
(Note 1)
DBK84
WBK41
WaveBook/516E
Channel Input Side Device Interface Side
One of Many Possible WBK41-Based Systems
Note 1: Each DBK84 module requires a unique address setting as explained on page 13.
Thermocouple & Multifunctional Modules
WBK40 & WBK41, pg. 5
926896
:
Note
The row of terminal
blocks does not
apply to WBK40.
DIGITAL I/O (2 Terminal Blocks) POWER [Out] COUNTER - TMR D/A (DAC0, DAC1, DAC2, DAC3)
WBK41, Front Panel Connectors
Note that WBK40’s Front Panel is identical, except it has no screw-terminal blocks. Page 1 includes a photo of WBK40.
Page 2 includes a table that describes each item found on the front panel.
Thermocouple Connections
The WBK40 and WBK41 each accept up to 14 thermocouples [with mini-TC plugs] via channels 1
through 7 and 9 through 15. All channels have the same level of functionality.
Thermocouple wire is standardized, color-coded, and polarized, as noted in the following table.
Mini-TC plugs are type-specific, and for best
measurement operation the plug TC type should match
the wire TC type. If necessary, copper/copper (Type U)
plugs may be used, but measurement stability will be
slightly degraded. Mini-TC plugs are polarized as well,
and it is critical for proper measurement operation that
this polarity be followed when connecting the
thermocouple wire. Once wired, the TC plugs will only
mate into the unit’s TC connectors in one orientation,
thus ensuring a correct connection.
T/C
Type
N28 Orange Red
N14 Orange Red
Thermocouple Standards
(+) Lead to
Channel High
J White Red
K Yellow Red
T Blue Red
E Violet Red
S Black Red
R Black Red
B Gray Red
(-) Lead to
Channel Low
It should be noted that thermocouples output very small voltages and that long thermocouple leads can
pickup a large amount of noise. However, both the WBK40 and WBK41 inherently provide a high level of
noise immunity via their 4 Hz signal bandwidth and input filtering. If desired, further noise reduction can
be achieved through the use of shielded thermocouples and/or averaging.
You can minimize the effect of noise by:
(1) using shielded thermocouples
(2) averaging readings
(3) employing both of the above practices
To accommodate shielding, grounded connections, labeled “Analog Common,” are provided. A typical
use of the connection would be to attach the shield of a shielded thermocouple. Note that the Analog
Common connector is removable to facilitate wiring.
If a thermocouple shield is connected to a WBK40, or WBK41 module, leave the shield
unconnected at the other end of the thermocouple.
pg. 6, WBK40 & WBK41
Thermocouple and Multifunctional Modules
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Open Thermocouple Detection
The WBK40, WBK41, and DBK84 modules are equipped with open thermocouple detection for each
channel. This means that a broken thermocouple wire [or otherwise unconnected input] that is measured
will result in an off-scale reading. This is accomplished by applying a small bias current to each of the
channel inputs. Whenever a valid input is absent, the bias current saturates the input amplifier, resulting in
the off-scale reading. When in this “off-scale” state, however, the input amplifier draws more current from
the power supply. Specifically, the power draw of the module from ±15 V will increase by 0.75 mA for
each open channel.
If available power is limited, insert shorted TC plugs into unused channels. This will
minimize power consumption. Note that it is not enough to simply avoid scanning unused
channels; to minimize power consumption the channels must be physically shorted in the
hardware.
The power requirements, detailed in the product specification, assume worst case
connection conditions.
Digital I/O, Power, Counter/Timer, and DAC Connections (WBK41 Only)
The front panel of the WBK41 includes removable plug-in screw-terminal blocks for Digital I/O, Power,
Counter/Timer, and DAC (see following picture). Note that the DACs are only available if the DBK46
option is installed. Signal assignments are provided on page 2.
DIGITAL I/O (2 Terminal Blocks) POWER [Out] COUNTER - TMR D/A (DAC0, DAC1, DAC2, DAC3)
WBK41, Front Panel Connectors
CAUTION
Signal mix-up will result in erroneous readings and can damage equipment. Be sure to
connect signal lines to the proper screw-terminal connections.
Never move a wired terminal block from its intended terminal block socket to another.
The improperly routed signals, which result, can cause equipment damage.
Thermocouple & Multifunctional Modules
WBK40 & WBK41, pg. 7
926896
Connecting to the Device Interface Side –
WARNING
Electrical Shock Hazard! To avoid possible injury and equipment damage, turn off power to
devices and connected equipment prior to setup.
DBK84
DBK84
WBK40
WaveBook/516E
WBK40 System Examples
Note 1
Channel Input Side Device Interface Side
A WaveBook/516E with a WBK40 and two DBK84 Modules
Note 1: Each DBK84 module requires a unique address setting as explained on page 13.
Device Interface Connections (seen in the above example):
1.
From the WBK40 P1 connector to two DBK84 Modules via two CA-37-1T cables.
(Page 10 discusses T-Cables)
2. From a WBK40 SYNC port to a WaveBook/516E SYNC Port via a CA-74-1 cable.
3. From a WaveBook/516E EXPANSION PORT to the WBK40 PARALLEL PORT
via a CA-35-12 cable.
4. From the WaveBook/516E ETHERNET port to the Ethernet via a CA-242 cable.
5. Power Supply – a TR-40U was connected to the POWER IN [DIN 5] connector to supply power
at +10 VDC to +30 VDC for the WBK40 and for the WaveBook/516E.
Using Fastener Panels to Stack Modules:
Fastener Panels, sometimes referred to as “splice plates” (p/n 262-0801 and p/n 232-0810) are
typically used to stack modules to WaveBooks, and/or other modules. Optional handles
(p/n HA-111) may also be attached to a system. The following figure illustrates the simplicity
of the mounting process.
The fastener panels and associated screws are from
fastener panel kit p/n 262-0801 for connecting WBK
modules or p/n 232-0810 for connecting DBK84
modules.
Fastener Panels
Using Fastener Panels to Stack a WaveBook and two WBK Modules (use of the handle is optional)
Note:
When used with a WBK16, WaveBook/516, WaveBook/516A, or WaveBook/512A, fastener
panels will partially block the vents on the side of the module. This partial blocking of vents
does not jeopardize the cooling process.
pg. 8, WBK40 & WBK41
The optional handle is p/n HA-111.
Thermocouple and Multifunctional Modules
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DBK84
DBK84
DBK84
WBK40
WaveBook/516E
WBK17
WBK10A
Channel Input Side Device Interface Side
A WaveBook/516E with a WBK17, WBK10A, WBK40, and three DBK84 Modules
Device Interface Connections (seen in the above example):
1. From the WBK40 P1 connector to three DBK84 Modules via three CA-37-1T cables.*
2. From the WBK40 SYNC port to WaveBook/516E SYNC Port via a CA-74-1 cable.
3. From the WBK40 PARALLEL PORT to the WaveBook/516E Expansion Port via a CA-35-12 cable.
4. From the WaveBook/516E’s ETHERNET port to the Ethernet via a CA-242 cable.
5. From the WaveBook/516E EXTERNAL CONTROL connector to the WBK17’s EXPANSION
CONTROL IN connector, via a CA-129 cable.
6. From the WaveBook/516E EXTERNAL SIGNAL IN connector to the WBK17 EXTERNAL
SIGNAL OUT connector via a CA-150 cable.
7. From the WaveBook/516E Channel Input Side’s DIGITAL I/O AND TRIGGER connector to the
WBK17 DIGITAL EXPANSION IN connector via a CA-217 cable.
8. From the WBK17 EXPANSION CONTROL OUT connector to the WBK10A EXPANSION
CONTROL IN connector via a CA-129 cable.
9. From the WBK17’s EXPANSION SIGNAL IN connector to the WBK10A’s EXPANSION SIGNAL
OUT connector via a CA-150 cable.
10. Power Supply – a TR-40U was connected to the POWER IN [DIN 5] connector to supply power at
+10 VDC to +30 VDC for the WBK40, WaveBook/516E, and WBK17.
Note 1
11. Power Supply – From the WBK17 POWER OUT [DIN 5] +10 VDC to +30 VDC connector to the
WBK10A POWER IN [DIN 5] connector via a CA-115 power cable. The CA-115 is a 6-inch long
cable which has a 5-pin DIN male connector at each end.
An incorrect use of power can damage equipment or degrade performance. Prior to
connecting your devices to power, calculate your system’s power requirements.
Reference Note
Information pertaining to connecting the system to power and calculating the amount of
power needed can be found in the WaveBook User’s Manual. A PDF version is included on
the data acquisition CD and can be accessed from the CD’s intro-screen by using the <View
PDFs> button.
* Information regarding the use of CA-37-T cables is provided on page 10.
Using Fastener Panels to Stack Modules:
Fastener panels are illustrated and discussed on page 8.
Note 1: Each DBK84 module requires a unique address setting as explained on page 13.
Thermocouple & Multifunctional Modules
CAUTION
WBK40 & WBK41, pg. 9
926896
What are “T-Cables” and how are they used?
D
y
A T-Cable is a ribbon cable that extends the connections of one of the ports it plugs into, thus allowing a
second cable to plug into that port. The following figure clarifies the concept.
T-Cables are available in different lengths and can be used for linking two or more compatible devices
together via the device’s 37-pin connectors.
The bottom-end of the T-Cable is a dual-connector, consisting of both a female connector, and a 37-pin
(male) connector. As seen in the following illustration, the T-Cable’s 37-pin (male) connector can be used
for “Daisy-Chain” applications.
Each T-Cable comes with three sets of screws. These are designated (in the diagram) as: short, medium,
and long. Use the short screws to secure the single, female-end of the cable to the device; and use the
medium length screws to secure a cable’s “dual-end” connector. Use the long screws for daisy-chain
applications (when you are connecting one T-Cable to another T-Cable).
Turn power OFF to the acquisition devices and to externally connected equipment
prior to connecting cables. Electrical shock or damage to equipment can result even
under low-voltage conditions.
Tighten screws snug only; do not over-tighten!
CAUTION
ais
-Chain Example, Using Tw
Using two T-Cables to Connect Three Devices
Daisy-Chain Example
o T-Cables
pg. 10, WBK40 & WBK41
Thermocouple and Multifunctional Modules
926896
Connecting to the Device Interface Side –
Electrical Shock Hazard! To avoid possible injury and equipment damage, turn off power to
devices and connected equipment prior to setup.
WBK41 System Examples
WARNING
3 DBK21 Cards in a DBK10
DBK84
DBK84
WBK41
WaveBook/516E
A WaveBook/516E with a WBK41, two DBK84 Modules, & three DBK21 Cards (in a DBK10)
Device Interface Connections (seen in the above example):
1. From the WBK41 P1 connector to two DBK84 Modules via two CA-37-1T Cables.*
2. From a WBK41 SYNC port to a WaveBook/516E SYNC Port via CA-74-1 Cable.
3. From the WaveBook/516E EXPANSION port to the WBK41 PARALLEL PORT via a
CA-35-12 cable.
4. From the WaveBook/516E ETHERNET port to the Ethernet via a CA-242 cable.
5. From the WBK41 P2 connector to three DBK21 Cards (in a DBK10 Chassis) via a
CA-37-3 cable.
6. Power Supply – a TR-40U was connected to the POWER IN [DIN 5] connector to supply
power at +10 VDC to +30 VDC for each of the following devices:
* Information regarding the use of CA-37-T cables is provided on page 10.
Note 1
Channel Input Side Device Interface Side
• • WBK41
WaveBook/516E
Using Fastener Panels to Stack Modules:
Fastener Panels are discussed on page 7.
Note 1: Each DBK84 module requires a unique address setting as explained on page 13 of this document
module and in the DBK Options User’s Manual (p/n 457-0905). Each DBK21 card also requires a
unique address as dicsussed in the DBK Options User’s Manual.
Thermocouple & Multifunctional Modules
WBK40 & WBK41, pg. 11
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