DBK208

Relay Carrier Board
For Opto-22 Compatible Solid-State-Relays
Overview …… 1Warnings, Cautions, and Tips …… 3Power …… 4
External Power Watchdog …… 5Operation …… 5
Software Setup …… 7
DBK208 – Specifications …… 9Note:

The DBK208 provides: (a) two P2 connectors, (b) footprints for sixteen optically-isolated SolidState-Relay (SSR) Modules, and (c) 16 dual-screw terminal blocks. DBK208 includes a 100-pin P4
connector for use with DaqBook/2000 Series Devices, DaqBoard/2000 Series Boards, and /2000cSeries Boards.
This product is not used with:LogBook
DaqBook/100 Series devices
DaqBoard/100 (ISA-type) Series devices
Reference Notes:
In regard to calculating system power requirements refer to the DBK Basics section.
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to yoursystem, as needed.
For a quick comparison of all DBK200 Series boards, refer to the DBK200 Series Matrix.
The matrix is located just before this DBK200 section.
Refer to the DaqBoard/2000 Series and cPCI DaqBoard/2000c Series User’s Manual(p/n 1033-0901) or the DaqBook/2000 Series User’s Manual (p/n 1103-0901) for information
pertaining to those products, as needed.

Overview

DBK208 Carrier Board for Opto-22 Compatible Solid-State-Relays
DaqBoard/2000 Series and cPCI DaqBoard/2000c Series boards communicate [external from the host PC]
through a 100-pin P4 connector. The P1, P2, and P3 connectors discussed in association with these boards
are subset connectors of the 100-pin P4 connector. Chapter System Connections and Pinouts, includes
pinouts for P1, P2, P3, and P4.
The information included in this section, when combined with that found in the related DBK option cardsand modules subsections should enable you to set up your desired configuration.
DBK208 is a two-bank carrier board for optically-isolated Solid-State-Relay (SSR) modules. Each banksupports up to eight digital I/O modules. The banks can be independently set as “input” or “output” via
jumpers (JP0 for Bank 0, and JP1 for Bank 1). The I/O modules are industry standard Opto-22 compatible,
5-volt logic level modules.
DBK Option Cards and Modules

987594

DBK208, pg. 1

WARNING
Ensure that hard-wire emergency over-ride circuitry exists for all applications thatmake use of dangerous switch-loads. Do not operate such switch-loads unlessemergency over-ride circuitry is present.
Note 1: DBK208 is not used with DaqBoard/2003.
Note 2: DBK208 can be used with DaqBook/200 and Daqboard/200 (ISA-type) series devices;
but should not be used with DaqBook/100 or DaqBoard/100 (ISA-type) series devices.

DBK208 Block Diagram
DBK208 boards are typically installed in NEMA-type panels; however, they may alternatively be installedon DIN rails. Separate mounting instructions are included with Rack Mount Kit (part no. Rack-DBK-3)
and with DIN-rail Mount Kit (part no. DIN-DBK-1).
DBK208 is controlled digitally from the Daq device (DaqBook or DaqBoard) through one of twoconnectors, as follows:
DaqBook/200 Series Devices – control is through the 37-pin P2 digital port of the DaqBook and one of two DBK208
P2 connectors.
DaqBoard/200 Series boards [ISA-type] - control is through the 37-pin P2 digital port of the DaqBoard and one of
the DBK208 P2 connectors.
DaqBook/2000 Series Devices, DaqBoard/2000 Series boards, and cPCI DaqBoard/2000c Series boards – control
originates in the board’s 100-pin P4 connector. Connection of these boards to DBK208 can be made directly or
indirectly as follows:DBK208, pg. 2•

Direct connection can be made from the 2000 series board’s 100-pin P4 connector to a DBK208’s P4
connector via a CA-195 cable.

•Indirect connection can be made using one of the DBK200 Series P4-adapters that includes a 37-pin P2
connector (DBK201, DBK202, DBK203, DBK204, DBK206, DBK209, or another DBK208). CA-37
cables are used to connect from P2 to P2.

987594

DBK Option Cards and Modules

Note that a single Daq-based data acquisition system can support up to 16 DBK208 boards, providing atotal of 256 channels. DBK208 boards contain two DB37 P2 connectors for the purpose of daisy-chaining
to other DBK208s or to other P2-supported devices.
The following illustration is an example of a Data Acquisition System that includes two DBK208 boardsfor digital I/O. The two DBK208 boards are daisy-chained to a DBK209 P2 connector. The DBK209 isconnected to a DaqBoard/2000 Series board via a CA-195 cable.

Warnings, Cautions, and Tips
WARNING
Ensure that hard-wire emergency over-ride circuitry exists for all applications thatmake use of dangerous switch-loads. Do not operate such switch-loads unlessemergency over-ride circuitry is present.

CAUTION
Turn off power to the host PC and externally connected equipment prior to connecting
cables or signal lines to the DBK. Electric shock or damage to equipment can result
even under low-voltage conditions.
Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)
Use care to avoid touching board surfaces and onboard components. Only handle
boards by their edges (or ORBs, if applicable). Ensure boards do not come into contact
with foreign elements such as oils, water, and industrial particulate.
Do not confuse connectors. Ensure that you only connect P1 I/Os to P1,P2 I/Os to P2, and P3 I/Os to P3. Improper connection may result in equipment
damage.

DBK Option Cards and Modules

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DBK208, pg. 3

1.

Provide raceways (protective wiring routes) for all external I/O wiring.

2.

Keep external I/O wiring away from ribbon cables.

3.

Keep external I/O wiring away from low-voltage signal wiring.

4.

Provide appropriate strain-relief and physical restraint to ensure that the wiring is held securely in theintended position, and without strain.

5.

Ensure that all wiring with >50V potential is identified by the appropriate color codes and thatwarning labels are clearly visible.

6.

Provide physical protection for the I/O interface board. The level of protection is dependent upon theboard’s operating environment.

Partial DBK208

PowerThe DBK208 requires an external isolated 5 volt DC supply
with at least 0.25 amp current capacity. External power attaches
to the DBK208 via on-board screw terminal connections. The
board contains capacitors to filter input noise from the power
supply.
Over-current protection is provided by an on-board 0.5 amp
reset fuse in series with the 5 volt supply. Protection fromover-voltage and reverse polarity power conditions is provided
by a 6.8V zener diode.

DBK208, pg. 4987594

DBK Option Cards and Modules

External Power Watchdog
The External Power Watchdog is governed by the setting of the JP2 jumper. This jumper allows the userto determine the behavior of the digital output latches in the event of a loss and recovery of the external
power supply.
With the jumper in the ENABLE position, the loss of external power will cause the output latches to bereset into a high-impedance condition. Even with a recovery of the external power, all output modules will
be disabled until a write is done to the data bus. This setting is useful in an application that requires a
serial enabling of output loads.
With the jumper in the DISABLE position, the loss of external power will have no effect on the state orcontinued control of the output latches. That is, data that is written to the output modules will continue tobe latches as normal. A recovery of the external power would then cause the output modules to reflect thecurrent state of the output latches. This setting is useful in the case where the operator halts the transfer ofdata and turns off the external power on purpose and then wants the system to assume the same state uponrecovery of the external power.
The setting of the JP2 jumper has no effect on input modules with regards to external power. While a lossof external power will result in corruption of the data being read, the data bus will be valid again
immediately upon the recovery of the external power. The default setting of the JP2 jumper is theENABLE position.

Operation
The DBK208 P2 expansion protocol makes use of a 4-bit dip switch (S1) to configure the board’saddresses. Addresses are seen as XXXX + 0 for Bank 0’s set of eight modules and as XXXX + 1 for Bank
1’s set of eight modules, where the four Xs represent the DIP switch settings of 16 8 4 and 2. With all
four S1 micro-switches OFF (open), the first system board (designate as “0”) has Bank 0 registered as 0and Bank 1 registered as 1. With S1’s micro-switch “2” closed, we would see Bank 0 registered as 2 andBank 1 registered as 3. The following table portrays the addressing scheme and includes DaqView
designations.
The following breakdown is provided to indicate the relationship of DaqView channels to DBK208 boards
and banks. More detailed information follows.

Simplified Channel-to-DBK208 Relationship

DBK Option Cards and Modules

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DBK208, pg. 5

DBK208
Board #Switch S1 Configurations

Address

Designation in DaqView(see notes 2 & 3)

16842Bank 0Bank 1

Expanded Digital I/O inAsync Digital I/O window

0OFFOFFOFFOFF

01

P2 0-A

P2 0-B

1OFF

OFF

OFF

ON

23

P2 0-CP2 0-D

2OFF

OFF

ONOFF

45

P2 1-AP2 1-B

3OFF

OFF

ONON

67

P2 1-CP2 1-D

4OFFONOFFOFF89

P2 2-AP2 2-B

5OFFON

OFFON

1011

P2 2-CP2 2-D

6OFF

ONONOFF

1213

P2 3-A

P2 3-B

7OFFONONON

14

15

P2 3-CP2 3-D

8ONOFFOFFOFF

1617

P2 4-A

P2 4-B

9ON

OFFOFFON

18

19

P2 4-CP2 4-D

10

ONOFFONOFF

20

21

P2 5-A

P2 5-B

11

ON

OFFON

ON

22

23

P2 5-CP2 5-D

12

ON

ON

OFFOFF

24

25

P2 6-A

P2 6-B

13

ON

ON

OFFON

26

27

P2 6-CP2 6-D

14

ON

ON

ON

OFF

28

29

P2 7-A

P2 7-B

15

ON

ON

ON

ON

30

31

P2 7-CP2 7-D

Channel01234567Notes: (1) Switch S1 settings are made physically on the DBK208 boards and are checked in DaqView (see thefollowing screen capture). The software aspect is detailed on the following page.
(2) The Digital Option Cards External Connection section of DaqView’s Configure System Hardware
window lists 8 channels (0 through 7) as shown in the following screen image.
(3) Each of the 8 channels can represent 2 DBK208 boards. For example, as seen in the table, System Board
0 and System Board 1 would both show up in DaqView’s channel 0.
(4) In the Async Digital I/O window, each active channel (representing 2 boards) has divisions of A, B, C,and D. A represents Bank 0 of the first board. B represents Bank 1 of the first board.
C represents Bank 0 of the second board. D represents Bank 1 of the second board.

(5) Banks are selected to be “Input” or “Output” via jumpers. Jumper JP0 applies to Bank 0, JP1 applies toBank 1.

Logic outputs provide signals for clocking data to registers for the Opto-22 SSR type modules. On-board
jumpers (JP0 and JP1) are used to set the banks for “input” or “output.” The banks can be set
independently, however, all modules within a bank will have the same setting. For example, JP0 could be
set to “Input,” configuring all 8 modules of Bank 0 to Input; and JP1 could be set to “Output,” configuring
all Bank 1 modules to “Output.”
Each Opto-22 module has a 2-connector terminal block for signal connections.

DBK208, pg. 6987594

DBK Option Cards and Modules

Software Setup
Note: DBK208 is not applicable to LogBook or LogView.

To use DBK208 from within DaqView, you must first configure the DaqView software to match thehardware setup.

1.

From DaqView’s main window, select the Device pull-down menu.

2.

Select Configure Hardware Settings.
The Digital Option Cards External Connection section of DaqView’s Configure System Hardware
window lists 8 channels (0 through 7) as shown in the following screen image.

3. Under Digital Option cards (on right side of screen), select DBK208. A DBK208 Configuration
Settings window will appear. The window includes a “Switch Settings” section (see following figure).
4.

Select the S1 switch settings that apply to your configuration. In the above screen example
DaqView’s Digital Channel 0 consists of two boards. Note that no more than two DBK208 boards arepermitted per DaqView Channel. Both S1 check boxes are selected when two boards are used in achannel.

5.

Check (or uncheck) JP-0 and JP-1 to match your hardware. A checked jumper indicates that theassociated bank is digital Input. An unchecked jumper indicates Output. The first board in thechannel has its banks designated as P2 0-A and P2 0-B. The second board’s banks are designated asP2 0-C and P2 0-D.
6. After S1, JP-0, and JP-1 settings are complete, click the OK button.
7. Select the Digital I/O icon from DaqView’s main window toolbar. The Async Digital I/O window willappear.
With the P2 Digital I/O tab selected in the Async Digital I/O window, each active channel(representing 2 boards) has divisions of A, B, C, and D.

DBK Option Cards and Modules•“A” represents the 8-bit Bank 0 of the first board.

•“B” represents the 8-bit Bank 1 of the first board.

•“C” represents the 8-bit Bank 0 of the second board.

•“D” represents the 8-bit Bank 1 of the second board.

987594

DBK208, pg. 7

Switch Settings
For Digital Output

The switch settings must
agree with those on theactual DBK208 board.
Refer to pages 5 and 6 ofthis section for configuration details.

Ensure the JP0 and JP1
boxes are checked for eachport configured as DigitalOutput.

For Digital Input
Ensure the JP0 and JP1
boxes are not checked foreach port configured as
Digital Input.

Configure System Hardware and DBK208 Configuration Settings Windows

Async Digital I/O Window – P2 Digital I/O Tab Selected
In the above screen shot of the Digital I/O Window, channel 0 represents two DBK208 boards. The
first board consists of banks A and B, the second board consists of banks C and D. In this example all
four banks are seen as Input. The input determination was made by the physical positions of hardware
jumpers (JP0 and JP1) and software selections for JP-0 and JP-1, i.e., that for Digital Input they were
not checked.
Note: When Output is selected, hexadecimal values must be entered in the “O” block for theapplicable bank.
8.

DBK208, pg. 8

Upon completion of the configuration click the Execute button.

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DBK Option Cards and Modules

DBK208 – Specifications
Name/Function: Carrier Board for Opto-22 Compatible Solid-State-Relays
Module Capacity: 16, Opto-22 Solid-State-Relays
Cable (optional): CA-37-×
DC Input Fuse: 0.5A, re-set type
Power Requirement: 5 VDC, regulated. 0.25 amp minimum.
Operating Environment:
Temperature: 0°C to 70°C
Relative Humidity: 95% RH, non-condensing
Connectors:
P4 – 100-pin connector provides for connection to a DaqBook/2000 Series device’s,
DaqBoard/2000 Series board’s or cPCI DaqBoard/2000c Series board’sP4 connector via a CA-195 cable.
P2 – Two P2 (DB37) connectors provide for digital expansion via CA-37-x cable.
Screw Terminals – 16 sets of 2-connector blocks for I/O signals.
Isolation:
Channel-to-System: 500 V
Channel-to-Channel: 500 V

DBK Option Cards and Modules

987594

DBK208, pg. 9

DBK208, pg. 10987594

DBK Option Cards and Modules