Bristol Babcock ControlWave BB-8DI2-8DO2-H User manual

Ethernet Distributed (Remote) I/O MODULES
BB-8DI2-8DO2-H, BB-16DI2-H & BB-8CNT
BB-16DO2-H
BB-8DI2-8AI2-H & BB-4RTD-4DI2-U
BB-16AI2-H & BB-8INS-U
BB-8AI2-4AO2-H
Discrete I/O Modules:
Discrete Output Modules:
Discrete / Analog Modules:
Analog Input Modules:
Analog I/O Modules:
ControlWave
Bristol Babcock
Instruction Manual
Issue: 08/2001
TM
CI-ControlWave RI/OWave
ControlWave Ethernet I/O

NOTICE
Copyright Notice
The information in this document is subject to change without notice. Every effort has been
made to supply complete and accurate information. However, Bristol Babcock assumes no
responsibility for any errors that may appear in this document.
Request for Additional Instructions
Additional copies of instruction manuals may be ordered from the address below per
attention of the Sales Order Processing Department. List the instruction book numbers or
give complete model number, serial or software version number. Furnish a return address
that includes the name of the person who will receive the material. Billing for extra copies
will be according to current pricing schedules.
ControlWaveTM is a trademark of Bristol Babcock. Other trademarks or copy-righted
products mentioned in this document are for information only, and belong to their respective
companies, or trademark holders.
Copyright (c) 2001 Bristol Babcock, 1100 Buckingham St., Watertown, CT 06795. No part of
this manual may be reproduced in any form without the express written permission of
Bristol Babcock.

IMPORTANT! READ INSTRUCTIONS BEFORE STARTING!
Be sure that these instructions are carefully read and understood before any
operation is attempted. Improper use of this device in some applications may result
in damage or injury. The user is urged to keep this book filed in a convenient
location for future reference.
These instructions may not cover all details or variations in equipment or cover
every possible situation to be met in connection with installation, operation or
maintenance. Should problems arise that are not covered sufficiently in the text, the
purchaser is advised to contact Bristol Babcock for further information.
EQUIPMENT APPLICATION WARNING
The customer should note that a failure of this instrument or system, for
whatever reason, may leave an operating process without protection. Depending
upon the application, this could result in possible damage to property or injury to
persons. It is suggested that the purchaser review the need for additional backup
equipment or provide alternate means of protection such as alarm devices, output
limiting, fail-safe valves, relief valves, emergency shutoffs, emergency switches, etc.
If additional information is required, the purchaser is advised to contact Bristol
Babcock.
RETURNED EQUIPMENT WARNING
When returning any equipment to Bristol Babcock for repairs or evaluation,
please note the following: The party sending such materials is responsible to ensure
that the materials returned to Bristol Babcock are clean to safe levels, as such levels
are defined and/or determined by applicable federal, state and/or local law
regulations or codes. Such party agrees to indemnify Bristol Babcock and save
Bristol Babcock harmless from any liability or damage which Bristol Babcock may
incur or suffer due to such party's failure to so act.
ELECTRICAL GROUNDING
Metal enclosures and exposed metal parts of electrical instruments must be
grounded in accordance with OSHA rules and regulations pertaining to "Design
Safety Standards for Electrical Systems," 29 CFR, Part 1910, Subpart S, dated: April
16, 1981 (OSHA rulings are in agreement with the National Electrical Code).
The grounding requirement is also applicable to mechanical or pneumatic
instruments that include electrically-operated devices such as lights, switches, relays,
alarms, or chart drives.
EQUIPMENT DAMAGE FROM ELECTROSTATIC DISCHARGE VOLTAGE
This product contains sensitive electronic components that can be damaged by
exposure to an electrostatic discharge (ESD) voltage. Depending on the magnitude
and duration of the ESD, this can result in erratic operation or complete failure of the
equipment.
Bristol Babcock 1100 Buckingham Street, Watertown, CT 06795
Telephone [phone]

WARRANTY
A. Bristol warrants that goods described herein and manufactured by Bristol are free
from defects in material and workmanship for one year from the date of shipment
unless otherwise agreed to by Bristol in writing.
B. Bristol warrants that goods repaired by it pursuant to the warranty are free from
defects in material and workmanship for a period to the end of the original warranty
or ninety (90) days from the date of delivery of repaired goods, whichever is longer.
C. Warranties on goods sold by, but not manufactured by Bristol are expressly limited
to the terms of the warranties given by the manufacturer of such goods.
D. All warranties are terminated in the event that the goods or systems or any part
thereof are (i) misused, abused or otherwise damaged, (ii) repaired, altered or
modified without Bristol's consent, (iii) not installed, maintained and operated in
strict compliance with instructions furnished by Bristol, or (iv) worn, injured or
damaged from abnormal or abusive use in service time.
E. THESE WARRANTIES ARE EXPRESSLY IN LIEU OF ALL OTHER WAR-
RANTIES EXPRESS OR IMPLIED (INCLUDING WITHOUT LIMITATION WAR-
RANTIES AS TO MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE), AND NO WARRANTIES, EXPRESS OR IMPLIED, NOR ANY REP-
RESENTATIONS, PROMISES, OR STATEMENTS HAVE BEEN MADE BY BRIS-
TOL UNLESS ENDORSED HEREIN IN WRITING. FURTHER, THERE ARE NO
WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THE FACE
HEREOF.
F. No agent of Bristol is authorized to assume any liability for it or to make any written
or oral warranties beyond those set forth herein.
REMEDIES
A. Buyer's sole remedy for breach of any warranty is limited exclusively to repair or
replacement without cost to Buyer of any goods or parts found by Seller to be
defective if Buyer notifies Bristol in writing of the alleged defect within ten (10) days
of discovery of the alleged defect and within the warranty period stated above, and if
the Buyer returns such goods to Bristol's Watertown office, unless Bristol's Water-
town office designates a different location, transportation prepaid, within thirty (30)
days of the sending of such notification and which upon examination by Bristol
proves to be defective in material and workmanship. Bristol is not responsible for
any costs of removal, dismantling or reinstallation of allegedly defective or defective
goods. If a Buyer does not wish to ship the product back to Bristol, the Buyer can ar-
range to have a Bristol service person come to the site. The Service person's
transportation time and expenses will be for the account of the Buyer. However,
labor for warranty work during normal working hours is not chargeable.
B. Under no circumstances will Bristol be liable for incidental or consequential damages
resulting from breach of any agreement relating to items included in this quotation
from use of the information herein or from the purchase or use by Buyer, its
employees or other parties of goods sold under said agreement.

How to return material for Repair or Exchange
Before a product can be returned to Bristol Babcock for repair, upgrade, exchange, or to
verify proper operation, form (GBU 13.01) must be completed in order to obtain a RA
(Return Authorization) number and thus ensure an optimal lead time. Completing the form
is very important since the information permits the Bristol Babcock Repair Dept. to
effectively and efficiently process the repair order.
You can easily obtain a RA number by:
A. FAX
Completing the form (GBU 13.01) and faxing it to [phone]. A BBI Repair
Dept. representative will return call (or other requested method) with a RA number.
B. E-MAIL
Accessing the form (GBU 13.01) via the Bristol Babcock Web site
(www.bristolbabcock.com) and sending it via E-Mail to [email protected].
A BBI Repair Dept. representative will return E-Mail (or other requested method)
with a RA number.
C. Mail
Mail the form (GBU 13.01) to
Bristol Babcock Inc.
Repair Dept.
1100 Buckingham Street
Watertown, CT 06795
A BBI Repair Dept. representative will return call (or other requested method) with
a RA number.
D. Phone
Calling the BBI Repair Department at [phone]. A BBI Repair Department
representative will record a RA number on the form and complete Part I, then send
the form to the Customer via fax (or other requested method) for Customer
completion of Parts II & III.
A copy of the completed Repair Authorization Form with issued RA number should be in-
cluded with the product being returned. This will allow us to quickly track, repair, and
return your product to you.

Bristol Babcock Inc. Repair Authorization Form
(Providing this information will permit BBI to effectively and efficiently process your return. Completion is required to
receive optimal lead time. Lack of information may result in increased lead times.)
Date___________________ RA #___________________SH_ Line No.____________
Form GBU 13.01 Rev. A
Standard Repair Practice is as follows: Variations to this is
practice may be requested in the “Special Requests” section.
•Evaluate / Test / Verify Discrepancy
•Repair / Replace / etc. in accordance with this form
•Return to Customer
Please be aware of the Non warranty standard charge:
•There is a $100 minimum evaluation charge, which is
applied to the repair if applicable (√in “returned” B,C,
or D of part III below)
Part I Please complete the following information for single unit or multiple unit returns
Address No. (office use only) Address No. (office use only)
Bill to : Ship to:
Purchase Order: Contact Name:____________________________________
Phone: Fax: E-Mail:
Part II Please complete Parts II & III for each unit returned
Model No./Part No. Description
Range/Calibration S/N
Reason for return : Failure Upgrade Verify Operation Other
1. Describe the conditions of the failure (Frequency/Intermittent, Physical Damage, Environmental Conditions,
Communication, CPU watchdog, etc.)
(Attach a separate sheet if necessary)
2. Comm. interface used: Standalone RS-485 Ethernet Modem (PLM (2W or 4W) or SNW) Other:______________
3. What is the Firmware revision? _____________________ What is the Software &version?
Part III If checking “replaced” for any question below, check an alternate option if replacement is not available
A. If product is within the warranty time period but is excluded due
to BBI’s warranty clause, would you like the product: repaired returned replaced scrapped?
B. If product were found to exceed the warranty period,
would you like the product: repaired returned replaced scrapped?
C. If product is deemed not repairable would you like your product: returned replaced scrapped?
D. If BBI is unable to verify the discrepancy, would you like the product: returned replaced *see below?
* Continue investigating by contacting the customer to learn more about the problem experienced? The person to contact that
has the most knowledge of the problem is: _______________________________ phone
If we are unable to contact this person the backup person is: _________________________ phone
Special Requests:
Ship prepaid to: Bristol Babcock Inc., Repair Dept., 1100 Buckingham Street, Watertown, CT 06795
Phone: [phone] Fax: [phone]

Bristol Babcock
Training
GET THE MOST FROM YOUR BRISTOL
BABCOCK INSTRUMENT OR SYSTEM
●Avoid Delays and problems in getting your system on-line
●Minimize installation, start-up and maintenance costs.
●Make the most effective use of our hardware and software.
●Know your system.
As you know, a well-trained staff is essential to your operation. Bristol Babcock offers a full
schedule of classes conducted by full-time, professional instructors. Classes are offered
throughout the year at four locations: Houston, Birmingham, Orlando and our Watertown,
CT headquarters. By participating in our training, your personnel can learn how to install,
calibrate, configure, program and maintain any and all Bristol Babcock products and realize
the full potential of your system.
For information or to enroll in any class, contact our training department in Watertown at
[phone]. For Houston classes, you can also contact our Houston office, at (713) 685-
6200.

BLANK PAGE

A Few Words About Bristol Babcock
For over 100 years, Bristol7has been providing innovative solutions for the measurement
and control industry. Our product lines range from simple analog chart recorders, to
sophisticated digital remote process controllers and flow computers, all the way to turnkey
SCADA systems. Over the years, we have become a leading supplier to the electronic gas
measurement, water purification, and wastewater treatment industries.
On off-shore oil platforms, on natural gas pipelines, and maybe even at your local water
company, there are Bristol Babcock instruments, controllers, and systems running year-in
and year-out to provide accurate and timely data to our customers.
Getting Additional Information
In addition to the information contained in this manual, you may receive additional assis-
tance in using this product from the following sources:
Contacting Bristol Babcock Directly
Bristol Babcock's world headquarters are located at 1100 Buckingham Street, Watertown,
Connecticut 06795, U.S.A.
Our main phone numbers are:
[phone]
[phone] (FAX)
Regular office hours are Monday through Friday, 8:00AM to 4:30PM Eastern Time,
excluding holidays and scheduled factory shutdowns. During other hours, callers may leave
messages using Bristol's voice mail system.
Telephone Support - Technical Questions
During regular business hours, Bristol Babcock's Application Support Group can provide
telephone support for your technical questions.
For technical questions about TeleFlowÔproducts call [phone].
For technical questions about ControlWave call [phone] or [phone].
For technical questions regarding Bristol’s OpenEnterprise product, call [phone] or
e-mail: [e-mail]
For technical questions regarding ACCOL products, Open BSI Utilities, as well as
Bristol's Enterprise Server7/Enterprise Workstation7products, call [phone].
For technical questions about Network 3000 hardware, call [phone].
You can e-mail the Application Support Group at: [email protected]

The Application Support Group also maintains a service area within our main web site.
Technical information, as well as software updates are available in this area. To access our
web site, go to: bristolbabcock.com/services/techsupport/
For assistance in interfacing Bristol Babcock hardware to radios, contact Communication
Technologies in Orlando, FL at [phone] or [phone].
Telephone Support - Non-Technical Questions, Product Orders, etc.
Questions of a non-technical nature (product orders, literature requests, price and delivery
information, etc.) should be directed to the nearest sales office (listed below) or to your
Bristol-authorized sales representative.
Major U.S. Sales Offices Major International Sales Offices:
Watertown, CT [phone] Bristol Babcock Ltd (UK): (441) 562-820-001
Birmingham, AL [phone] Bristol of Canada: [phone]
Ontario, CA [phone] Bristol Babcock Asia Pacific 61 8-9455-9955
Farmington, NM [phone] BBI, S.A. de C.V. (Mexico) [phone]
Houston, TX [phone]
Richardson, TX [phone]
Please call the main Bristol Babcock number (860-945-2200) if you are unsure which office
covers your particular area.
Visit our Site on the World Wide Web
For general information about Bristol Babcock and its products, please visit our site on the
World Wide Web at: www.bristolbabcock.com

CI-ControlWaveRI/O Table Of Contents 1
Instruction Manual
ControlWave
Ethernet Distributed
(Remote) I/O Modules Control Wave Ethernet I/O
Contents at a Glance:
Section 1
General Information EthernetI/O modules
2
Section 2
Ethernetand RS485 Wiring RemoteI/O, Ethernet I/O Expansion
3
Section 3
Configuration Tools BB-232-SETUPand WindowsTools
4
Section 4
Discrete I/O Modules BB-8DI2-8DO2-H, BB-16DI2-H, BB-8CNT
7
Section 5
DiscreteOutput Module BB-16DO2-H
10
Section 6
Discrete/Analog Modules BB-8DI2-8AI2-H, BB-4RTD-4DI2-U
11
Section 7
Analog Input Modules BB-16AI2-H, BB-8INS-U
13
Section 8
Section 9
Analog I/OModule
Modbus Communications
BB-8AI2-4AO2-H
SchemeConfiguration Notes
15
16
Supplements & Appendices
SpecialInstructionsfor ClassI,Division 2HazardousLocations......................... Appendix A
Class I, Division 2,
Groups A, B, C, and D
Hazardous Locations

Section 1 General Information 2
Section 1 General Information
Overview This manual will help you install and maintain Ethernet Remote I/O Modules and
gateways. In summary, wiring for power, communications and I/O is connected to each
module’s base. Then, setup choices are entered using the Remote I/O Tool Kit software
and the system will be ready to run. Shown below are some typical system configurations
using Ethernet I/O:
Distributed Ethernet and serial I/O
General
Specifications These general specifications apply to all Ethernet I/O modules. More detailed product
specifications may be found in the online help system of the Remote I/O Toolkit
configuration utility.
Supply Voltage 10 - 30 Vdc, 1.2 Watt typical per module
(48 mA @ 24 Vdc - varies by module and load).
RS485 Expansion Connect up to 32 Remote I/O modules using RS485
Ethernet Isolation 1200 Volts RMS (for 1 minute)
Operating Temperature -30 to 70 °C
Storage Temperature -40 to 85 °C
Humidity 5 to 95% (non-condensing)
Protocols Supported Open Modbus/TCP, Serial Modbus RTU & ASCII
Universal
RS 485
Ethernet Hub
ControlWave Ethernet I/OControlWave Ethernet I/OControlWave Ethernet I/O

Section 2 Ethernet and RS485 Wiring 3
Section 2 Ethernet and RS485 Wiring
DC Power
Overview Ethernet I/O modules can be powered from the same DC source that is used to power
your I/O devices. No separate power supply is required. Typically, 10 to 30 VDC power
is applied to terminals 24 and 25 on the base of each module. Refer to the upcoming
wiring diagram for each module for power connections.
RS485 Wiring
Guidelines The RS485 party-line consists of two wires and an isolated ground wire. It is
recommended that the ground wire be connected to all stations to provide a common
return. The RS485 port on all Ethernet I/O modules is isolated from its internal circuitry,
local power source, and I/O wiring to improve communications reliability. It is
recommended that only 32 Remote I/O modules be connected on any RS485 party-line,
and that the termination jumper be installed on the last module on each end of the RS485
network. Limiting the cabling to two network arms (segments) radiating from the master
controller will yield the best signal results.
Screw Torque All the screw terminals on the base should be tightened to a maximum of 3.48 in-lbs.
19 20 21 22 23
G + - T1 T2 19 20 21 22 23 G + - T1 T2 19 20 21 22 23 G + - T1 T2
First Node Middle Node End Node

Section 3 Configuration Tools 4
Section 3 Configuration Tools
BB-232-SETUP Remote I/O Setup Module
Operation This setup tool is recommended to initially configure each Ethernet Remote I/O module.
To use the setup module, simply unplug any Ethernet I/O module from its base and insert
the setup module into the base.
Note: Ethernet I/O “smart bases” allow hot swap of live modules -- an exclusive feature
that makes it permissible to configure Ethernet I/O modules in live systems.
The Ethernet I/O module configuration you created using the Remote I/O Tool Kit
program will be written into permanent memory in the module’s base. When the Ethernet
I/O module is reinserted into its base, the module will find and upload the configuration
information, instantly configure itself and begin scanning I/O.
Once an Ethernet I/O module has been configured with an appropriate station address and
IP address (Ethernet I/O only), modified configuration data can be downloaded through
the Ethernet port or RS485 port into the module base.
More information on the Remote I/O Setup Module can be found in the online help
system of the Remote I/O Toolkit.
RS232 Wiring Connect the setup module to your Windows PC using a standard BB ST-CABLE-PF
RS232 cable. Only the transmit (TD), receive (RD) and common return (GND) signals
are actively used. The RS232 port on this configuration tool is electrically isolated to
protect your computer in the event of field wiring errors. The setup module runs on the
DC power connected to terminals 17 and 18 of the module base it is plugged into. No
other connections are required. (I/O wiring can be left undisturbed.)
RS232 Mode
Selection This module always communicates to the host PC at 9600 baud, with no parity and eight
data bits. Be sure to select “Use Setup Module’s Settings” as the communication device
selection in the Remote I/O Tool Kit program.

Section 3 Configuration Tools 5
Remote I/O
Tool Kit Ethernet I/O modules are configured using the Remote I/O Tool Kit software.
Configuration parameters are written over Ethernet, RS485 or RS232 (setup module only)
into permanent memory in the module’s base. Refer to the Remote I/O Tool Kit help for
details.
Here are the basic steps for configuring an Ethernet I/O module.
1. Connect DC power to the module.
2. Connect an Ethernet cable to the module. Use a straight-through cable if you are
connecting to an Ethernet hub or switch. Use a cross-wired cable if you are connecting
directly to a PC. Make sure the LNK LED on the module is on solid (not blinking).
3. Run the Remote I/O Tool Kit. You can use the Plug & Play Wizard to define the
parameters for the module. Be sure to do the following:
•Choose an IP address that is appropriate for your network. See the help file for
details.
•Enter in the serial number that is printed on a label on the module.
•Choose a station (slave) number for the module. This number must be unique
from other modules and the device to which you are interfacing.
•Select the appropriate RS232 or RS485 com parameters (protocol, baud rate, etc.)
to match the device to which you are interfacing.
4. Once you’ve completed the wizard, save your project file. Go to the Device
menu and choose the appropriate communication device. Then go to the
Operations menu and select Load. This should set the IP address in the
module and then load down your other parameters.
If this load fails for some reason, here are some items to check:
•Make sure the LNK LED is on solid. If it is off or blinking then a typical cause is
a bad cable, an incorrect cable, or you are plugged into the wrong port on your
hub/switch.
•Try to “ping” the module. Ping is a utility that comes with your PC. Start an
MSDOS prompt and type “ping” followed by the IP address of the gateway and
then hit <CR>. For example, “ping 10.1.0.1” (do not type the quotes). If you get
an “unknown command” error then you will need to install the TCP/IP Ethernet
protocol on your computer. If you get “destination unreachable” then make sure
the gateway’s IP address is valid with respect to the IP address and subnet mask
of your computer. If you get “request timeout” then check all the items above.
Note: Information on Ethernet networking can be found in the online help
system for the Remote I/O Toolkit.
5. Once you establish that you can communicate with the module from the Remote I/O
Tool Kit you then should attempt to communicate with your device using your
ControlWave master.

Section 3 Configuration Tools 6
Ethernet I/O
LEDs Every Ethernet I/O module has a number of LEDs. These LEDs can be useful for system
diagnostics. These LEDs can be observed in the following states:
I/O Module
Status LED On, with a quick “OFF” BLINK (1.9 seconds ON, .1 seconds OFF) - The module is
configured and fully operational, but has not received a valid request from the host for a
time longer than the specified time out period. A communication time out has occurred.
Full ON - The module is configured, fully operational, and has received communication
from the host device before the timeout period expired. This is the desired LED
indication during system operation.
HALF BLINK (1 second ON, 1 second OFF) - The module is not adequately configured
and requires a download from the Remote I/O Tool Kit program.
Full OFF - There is no power to the module, or the status LED is being turned off
intentionally by the Remote I/O Tool Kit during the module loading operation.
Off, with a quick “ON” BLINK (1.9 seconds OFF, .1 seconds ON ) - The module failed
self-test at initialization. It will not attempt communication and should be replaced.
Status LED
Wink Feature The “Status” LED of an I/O module can be intentionally winked (10 blinks/ second) by
the Remote I/O Tool Kit program to visually identify the module when other modules are
present.
ACT / LNK
LEDs The activity (ACT) LED on an Ethernet I/O module will flicker anytime there is traffic on
the Ethernet network, regardless of whom the network messages are intended for. The
link (LNK) LED will be ON whenever a valid link to another Ethernet device is detected.
The best troubleshooting tools for Ethernet I/O modules are the Status, ACT, and LNK
LEDs on each module. Each Ethernet I/O Status LED indicates the health of the module
and also the status of communication from the host device. You can use the Wink feature
to provide continuous transmission to an Ethernet I/O. Note that an Ethernet I/O module
does not send a reply in response to a Wink command.

Section 4 Discrete I/O Modules 7
Section 4 Discrete I/O Modules
BB-8DI2-8DO2-H 8 Discrete Inputs and 8 Discrete Outputs
BB-16DI2-H 16 Discrete Inputs
BB-8DI2-
8DO2
Overview
This module provides one terminal for each input or output channel. All inputs may be
wired as sourcing or sinking. Outputs are wired in a sourcing (power switching)
configuration only. An input count feature uses analog input registers to accumulate the
positive transitions of each input. More information may be found in the on-line help in the
Remote I/O Tool Kit program.
Number of Channels 8 discrete inputs, 8 discrete outputs (BB-8DI2-8DO2 only)
Input Voltage Range 12/24 VDC/VAC
Input Current @ 24Vdc 6.7 mA
Output Voltage Range 10 – 30 VDC
Maximum Count Rate 100 Hz (6000 / minute) each input, plus selectable 2KHz
(120,000 / minute) mode for input 1 only
Wiring and
Jumpers One wire from each sourcing field input should be bussed together and connected to
terminal 17 (DC +). One wire from each sourcing field output and/or or sinking field input
should be bussed together and connected to terminal 18 (DC GND). Refer to the wiring
diagram below. Set jumper W1 to match the wiring configuration of the inputs.
TPO Feature Time proportioned outputs pulse ON and OFF with a duty cycle proportional to an analog
value stored in an analog output register. TPO outputs are a low cost way to get smooth
proportional control of heaters and other process variables. Typically, TPO analog output
registers are assigned to the output of PID or other control logic in a ACCOL Workbench
or ControlWave Designer program. Use the Remote I/O Tool Kit to set pulse cycling as
fast as 10 mS or as slow (many minutes) as your system dynamics require. Each output
may be configured as a TPO or ordinary discrete output.
I/O Registers Function Module Registers Modbus Registers
Discrete Inputs X0 – X7 10001 – 10008
Discrete Outputs Y0 – Y7 00001 – 00008
TPO Values AY0 – AY7 40001 – 40008
Counter Inputs AX0 – AX7 30001 – 30008

Section 4 Discrete I/O Modules 8
BB-16DI2-H High Density Discrete Input Module
BB-16DI2
Overview This module provides sixteen input channels. Inputs may be wired as all sourcing or
sinking. An input count feature uses analog input registers to accumulate the positive
transitions of each input. More information on this and other features may be found in the
on-line help supplied with the Remote I/O Tool Kit program.
Number of Channels 16 discrete inputs (connected to a common source)
Input Voltage Range 12/24 VDC/VAC
Input Current @ 24 VDC 6.7 mA
Wiring and
Jumpers Positive DC or AC voltage must be applied to an input to indicate an ON condition. All
channels are referenced to a common return or supply, which is connected to the negative
side (ground) or positive side (DC+) of the DC power source. One wire from each
sourcing field input should be bussed together and connected to terminal 17 (DC +). One
wire from each sinking field input should be bussed together and connected to terminal 18
(DC GND). Refer to the wiring diagram below. Set jumper W1 to match the wiring
configuration of the inputs.
I/O Registers Function Module Registers Modbus Registers
Discrete Inputs X0 – X15 10001 – 10016
Counter Inputs AX0 – AX15 30001 – 30016

Section 4 Discrete I/O Modules 9
BB-8CNT High Speed Counter Module
BB-8CNT
Overview This high-speed counter module has eight isolated circuits that accept pulse inputs from a
variety of sources, including quadrature and incremental encoders. Count values are
reported in 16 bit analog input registers or 32 bit long registers. The states of the counter
inputs are also reported as discrete inputs. Pulse rates up to 50 kHz are supported. The
counters may be reset by toggling discrete output bits. Counter modes are selected using
the Remote I/O Tool Kit program. More information on this and other features may be
found in the on-line help supplied with the Remote I/O Tool Kit program.
Number of Channels 8 discrete inputs, isolated
Input Voltage Range 12/24 VDC/VAC
Input Current @ 24 VDC 6.7 mA
Input Wiring Screw terminal assignments are shown below. For best noise immunity, connect input
signals using twisted wire pairs. To maintain the best differential noise rejection, do not
connect (-) screw terminals together at the I/O base. Positive DC voltage must be applied
to an input to indicate an ON condition. Refer to the wiring diagram below.
Any odd-numbered input can be gated by connecting a gating signal to the next highest
even-numbered input. For example, Input 2 can gate the counter for Input 1.
I/O Registers Function Module Registers Modbus Registers
Discrete Inputs X0 – X7 10001 – 10008
Counter Inputs AX0 – AX7 or LI0 – LI7 30001 – 30008
35001 – 35008
Resets Y0 – Y7 00001 – 00008

Section 5 Discrete Output Module 10
Section 5 Discrete Output Modules
BB-16DO2-H High Density Discrete Output Module
BB-16DO2
Overview Sixteen discrete output channels each provide up to 1 Amp DC to motor contactors,
valves, and other loads. Inductive surge protection is provided. Each of the sixteen
outputs may optionally be configured as Time Proportioned Outputs that pulse ON at a
duty cycle proportional to an analog output register value. Typically these TPO outputs
are controlled by a PID loop or other process algorithm in a control program. More
information may be found in the on-line help supplied with the Remote I/O Tool Kit
program.
Number of Channels 16 discrete outputs connected to a common DC
source
Output Voltage Range 10 - 30 VDC
Max. Load per Output 1 Amp
Max. Load per Module 8 Amps
Max. Inrush Current 5 Amps (for 100 mS)
Wiring A single terminal is provided for each output channel. All outputs are powered from the
DC power terminal. All channels are referenced to a common return which is connected
to the negative side (ground) of the DC power source.
TPO Feature Time proportioned outputs pulse ON and OFF with a duty cycle proportional to an analog
value stored in an analog output register. TPO outputs are a low cost way to get smooth
proportional control of heaters and other process variables. Typically, TPO analog output
registers are assigned to the output of PID or other control logic in a ACCOL Workbench
or ControlWave Designer program. Use the Remote I/O Tool Kit to set pulse cycling as
fast as 10 mS or as slow (many minutes) as your system dynamics require. Each output
may be configured as a TPO or ordinary discrete output.
I/O Registers Function Module Registers Modbus Registers
Discrete Outputs Y0 – Y15 00001 – 00016
TPO Values AY0 – AY15 40001 – 40016