Teledyne 2108 Operating instructions

2108 Analog Output
Module
Installation and Operation Guide
Part #69-2003-239
Copyright © 2002. All rights reserved, Teledyne Isco, Inc.
Revision E, September 14, 2016

Foreword
This instruction manual is designed to help you gain a thorough understanding of the operation of
the equipment. Teledyne Isco recommends that you read this manual completely before placing the
equipment in service.
Although Teledyne Isco designs reliability into all equipment, there is always the possibility of a
malfunction. This manual may help in diagnosing and repairing the malfunction.
If a problem persists, call or e-mail Teledyne Isco technical support for assistance. Simple
difficulties can often be diagnosed over the phone. For faster service, please have your serial
number ready.
If it is necessary to return the equipment to the factory for service, please follow the shipping
instructions provided by technical support, including the use of the Return Material
Authorization (RMA) specified. Be sure to include a note describing the malfunction. This will
aid in the prompt repair and return of the equipment.
Teledyne Isco welcomes suggestions that would improve the information presented in this manual
or enhance the operation of the equipment itself.
Teledyne Isco is continually improving its products and reserves the right to change product
specifications, replacement parts, schematics, and instructions without notice.
Contact Information
Customer Service
Phone: [phone] (USA, Canada, Mexico)
[phone] (Outside North America)
Fax: [phone]
Email: [email protected]
Technical Support
Phone: Toll Free [phone] (Syringe Pumps and Liquid Chromatography)
Email: [email protected]
Return equipment to: 4700 Superior Street, Lincoln, NE 68504-1398
Other Correspondence
Mail to: P.O. Box 82531, Lincoln, NE 68501-2531
Email: [email protected]

2108 Analog Output Module
Safety
5
2108 Analog Output Module
Safet y
General Warnings Before installing, operating, or maintaining this equipment, it is
imperative that all hazards and preventive measures are fully
understood. While specific hazards may vary according to
location and application, take heed in the following general
warnings.
This product is often installed in confined spaces. Some examples
of confined spaces are manholes, pipelines, digesters, and storage
tanks. These spaces may become hazardous environments that
can prove fatal for those unprepared. These spaces are governed
governed by OSHA 1910.146 and require a permit before
entering.
Hazard Severity Levels This manual applies Hazard Severity Levels to the safety alerts,
These three levels are described in the sample alerts below.
CAUTION
Cautions identify a potential hazard, which if not avoided, may
result in minor or moderate injury. This category can also warn
you of unsafe practices, or conditions that may cause property
damage.
WARNING
Warnings identify a potentially hazardous condition, which
if not avoided, could result in death or serious injury.
DANGER
DANGER – limited to the most extreme situations
to identify an imminent hazard, which if not
avoided, will result in death or serious injury.

2108 Analog Output Module
Safety
6
Hazard Symbols The equipment and this manual use symbols used to warn of
hazards. The symbols are explained below.
Hazard Symbols
Warnings and Cautions
The exclamation point within the triangle is a warning sign alerting you of
important instructions in the instrument’s technical reference manual.
The lightning flash and arrowhead within the triangle is a warning sign alert-
ing you of “dangerous voltage” inside the product.
Symboles de sécurité
Ce symbole signale l’existence d’instructions importantes relatives au
produit dans ce manuel.
Ce symbole signale la présence d’un danger d’électocution.
Warnungen und Vorsichtshinweise
Das Ausrufezeichen in Dreieck ist ein Warnzeichen, das Sie darauf
aufmerksam macht, daß wichtige Anleitungen zu diesem Handbuch
gehören.
Der gepfeilte Blitz im Dreieck ist ein Warnzeichen, das Sei vor “gefährlichen
Spannungen” im Inneren des Produkts warnt.
Advertencias y Precauciones
Esta señal le advierte sobre la importancia de las instrucciones del manual
que acompañan a este producto.
Esta señal alerta sobre la presencia de alto voltaje en el interior del
producto.

7
2108 Analog Output Module
Table of Contents
Section 1 Introduction
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Section 2 Installation and Operation
2.1 Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Mounting the 2108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.3 Connection to a 2100 Series Flow Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.4 Connecting to the 2108 Terminal Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.5 System Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.6 Connection to a 2151P Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.7 Connection to a Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.8 Configuration in Flowlink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2.8.1 Manual Control of Output Percentage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.9 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Section 3 Modbus Protocol
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.1 Establishing Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2.2 Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.4 Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.5 Common Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.6 Register Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Appendix A Replacement Parts
A.1 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
List of Figures
1-1 2108 Analog Output Module - Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 2108 Analog Output Module - Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-3 2108 Communication Connector Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2-1 Back View of 2108 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 2100 Series Connect Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Identifying the 2150 voltage specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-4 Identifying the voltage specification on the DB9 cable . . . . . . . . . . . . . . . . . . . . . 2-4
2-5 Terminal strip on the front of the 2108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-6 Terminal connections if flow module is powered separately . . . . . . . . . . . . . . . . . 2-5
2-7 Terminal Connections if Flow Module and 2108 Share Same Power Source . . . . 2-6
2-8 Network connector on the front of the 2108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-9 Channel 1 setup screen in flowlink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

2108 Analog Output Module
Table of Contents
8
2-10 Output Channel Manual Control Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3-1 Configuration Example (Direct Connection Shown) . . . . . . . . . . . . . . . . . . . . . . . 3-3
List of Tables
1-1 2108 Analog Output Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-2 2108 Communication Connector Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2-1 Voltage Specifications for 2100 System Components . . . . . . . . . . . . . . . . . . . . . . . 2-3
3-1 Modbus ASCII Address 1 Register Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-2 Modbus ASCII Address 2+(N-1) Register Definitions . . . . . . . . . . . . . . . . . . . . . . 3-7
3-3 2100 Measurement Parameters by Model Number* . . . . . . . . . . . . . . . . . . . . . . . 3-9

1-1
2108 Analog Output Module
Section 1 Introduction
1.1 Overview The 2108 Analog Output Module converts digital data from an
Isco 2150, 2110, 2151, or 2151P Flow System module to analog
output. The data can then be read by a SCADA (Supervisory
Control and Data Acquisition), DCS (distributed control system)
or other control system instrument. The 2108 is designed to
output three 2100 series measurement parameters, typically
flow, level, and velocity data.
The 2108 is an ABS, NEMA 1 box (see Figure 1-1) with a DIN
rail mount on the back (Figure 1-2). This allows for easy instal-
lation in an equipment box/panel or a control room.
A six-pin network connector on the front of the unit is used to
configure the module using Isco’s Flowlink software, and can also
be used to retrieve data using a Flowlink or Isco’s Field Wizard.
Figure 1-1 2108 Analog Output Module - Front View
The terminal strip on the front of the 2108 provides connections
to a customer supplied external power supply, network connec-
tions for transmission of digital data from a 2150, 2151, or 2151P
module, and three analog channel pairs which can be connected
to a SCADA system or other secondary instrument.
The front of the unit also contains an LED, which identifies the
module when connected to Flowlink or a Field Wizard. It also
indicates network activity.

2108 Analog Output Module
Section 1 Introduction
1-2
Figure 1-2 2108 Analog Output Module - Back View
There are three connection cables that are used with the 2108. A
power/communication cable (P/N 60-2004-219) attaches to the
2100 series module and to the network terminal strip on the
2108. The connector on the front of the 2108 is used to connect to
a laptop computer (using RS-232 communication cable P/N
60-2004-046) or a Field Wizard (using communication cable P/N
60-2004-056).
Connections are described in Section 2, which provides more
detailed installation and operation instructions.

2108 Analog Output Module
Section 1 Introduction
1-3
1.2 Technical
Specifications
This section lists the technical specifications for the 2108.
Table 1-1 2108 Analog Output Module Specifications
Dimensions Depth = 2.165 inches (55 mm)
Width = 6.732 inches (171 mm)
Height = 4.764 inches (121 mm)
Weight 1.3 pounds (0.6 kg)
Material ABS
Enclosure NEMA 1, IP20
Power Requirements
Supply DC Voltage Range
nominal operating voltage: 12 volts
maximum absolute voltage: 26 volts
minimum operating voltage: 6.6 volts
Note
Earlier versions of the 2150, as well as some other system
components including cables, have lower voltage limits and
cannot be connected in systems powered by more than 16.6
VDC. Refer to Section 2.4.1 for complete information.
Supply DC Ampere Range
typical operating current: 300 mA @ 12 volts
maximum standby current: 280 mA @ 12 volts
maximum operating current: 580 mA @ 7.0 volts
Analog Output Channels Number of channels 3
Output Range 4-20 mA outputs
Maximum Load 600
Isolation: Output galvanically isolated from DC power, from the network
and from other outputs
Accuracy:
Integral Nonlinearity: ±0.012% max
Offset (0 mA or 4 mA) (Ta = 25°C): ±0.05%max
Offset Drift: 50 ppm/°C max
Total Output Error (20 mA or 24 mA)(Ta = 25°C): ±0.15% max
Total Output Error Drift: 50 ppm/°C max
PSRR: 10 µA/V max
Resolution: 16 bits, 244 nA, 0.0015% of 16 mA span
Operating Temperature -22°F to 140°F (-30°C to 60°C)
Storage Temperature -40°F to 140°F (-40°C to 60°C)
PC Data Link RS232 interface, capable of 38.4 Kbits per second
Data Storage File system memory capacity of 512 Kbytes of data
Setup and Data Retrieval PC compatible computer with Isco Flowlink for Windows software (version
4.15 or above)

2108 Analog Output Module
Section 1 Introduction
1-4
Figure 1-3 2108 Communication Connector Pins
A
B
C
D
E
F
G
Table 1-2 2108 Communication Connector Pins
Pin Name Description
A LONA Neuron differential transceiver Data A
B LONB Neuron differential transceiver Data B
C VIN+ Positive power supply voltage input/output
D VIN– Negative power supply voltage input/output
E XMTDN PC data transmit logic level output
F RCVDN PC data receiver logic level input
G Key Aligns connector pins

2-1
2108 Analog Output Module
Section 2 Installation and Operation
2.1 Unpacking
Instructions
When the system arrives, inspect the outside packing for any
damage. Then carefully inspect the contents for damage. If there
is damage, contact the delivery company and Teledyne Isco (or its
authorized representative) immediately.
WARNING
If there is any evidence that any items may have been
damaged in shipping, do not attempt to install the unit.
Please contact Teledyne Isco (or its agent) for advice.
When you unpack the system, check the items against the
packing list. If any parts are missing, contact the delivery
company and Teledyne Isco’s Customer Service Department.
When you report missing part(s), please indicate them by part
number.
It is recommended that you retain the shipping carton as it can
be used to ship the unit in the event you need to transport it.
2.2 Mounting the 2108 The 2108 is a DIN rail mounted unit. It comes with a 7 inch (17.8
cm) piece of DIN rail (Figure 2-1) which can be used for
mounting.
Figure 2-1 Back View of 2108 Module
Teledyne Isco, Inc.
Customer Service Dept.
P.O. Box 82531
Lincoln, NE 68501 USA
Phone: [phone]
Outside USA & Canada call:
[phone]
FAX: [phone]
E-mail: [e-mail]
Web site: www.isco.com
DIN Rail
DIN Rail Release

2108 Analog Output Module
Section 2 Installation and Operation
2-2
The 2108 is released from, or attached to, a DIN rail by using the
rail release lever (Figure 2-1). Insert an object such as the end of
a flat bladed screwdriver into the hole in the rail release and pull
down to move the lever.
2.3 Connection to a 2100
Series Flow Module
The 2108 is connected to a flow module (2150 area velocity or
2110 ultrasonic) with a 50 foot (15.2 m) connect cable (P/N
60-2004-219), shown in Figure 2-2. One end of the cable has six
wires, which are attached to the terminal strip on the front of the
2108. The other end of the cable is attached to the connector on
the underside of the flow module or 2191 battery module,
whichever is applicable.
Figure 2-2 2100 Series Connect Cable
2.4 Connecting to the
2108 Terminal Strip
The terminal strip is located on the front of the 2108 (Figure 2-5).
There are twelve terminals, two of which are blank (marked “X”).
Terminals 1 and 2 are for power; 4 and 5 are for network connec-
tions; 7-12 are for connecting up to three analog outputs to a
control system. The terminal’s screw clamp connections accept
wire sizes ranging from 12 to 24 AWG.
To make the connections: 1. Remove the terminal strip by pulling it straight out.
2. Tighten or loosen connections by turning the screw clamps
with a small flathead screwdriver.
3. Once the connections are made, push the terminal strip
back onto the 2108.
2.5 System Power Table 2-1 lists the maximum voltages for all Isco 2100 instru-
mentation. Regardless of the capabilities of other components,
never attempt to connect a module or cable to a system using a
power source that exceeds its stated operating range.

2108 Analog Output Module
Section 2 Installation and Operation
2-3
WARNING
Injury and/or equipment damage can result from
connecting modules or cables to a power source exceeding
the specified operating voltage range. Check labeling on all
modules and cables for voltage ranges.
Note
All connected system components should share a common
supply ground.
Figure 2-3 Identifying the 2150 voltage specification
Table 2-1 Voltage Specifications for 2100 System Components
Module or Cable Earlier Voltage Range Current Voltage Range Date of Change
2160 N/A 7-16.6 VDC N/A
2150 7-16.6 VDC 7-26 VDC March 2005
2110
7-16.6 VDC
N/A
2101
2103
2102 10.2-16.6 VDC
2108 7-26 VDC
2105
RS-232 DB9 Cable
(part #60-2004-046) 7-16.6 VDC 7-26 VDC January 2009
RS-232 USB Cable
(part #60-2004-507) 7-26 VDC N/A
Sampler Interface Cable
(part #60-2004-260) 12VDC (from sampler) N/A (Cable is powered from sampler.)

2108 Analog Output Module
Section 2 Installation and Operation
2-4
The module crown connector on the earlier RS-232 DB9 digital
communication cable (part #60-2004-046) is unmarked. The con-
nector on the 26-volt cable has a serial tag specifying the higher
voltage (refer to Figure 2-4).
Figure 2-4 Identifying the voltage specification on the DB9 cable
WARNING
Injury and/or equipment damage can result from
connecting modules or cables to a power source exceeding
the specified operating voltage range. Check labeling on all
modules and cables for voltage ranges.
Note
All connected system components should share a common
supply ground.
Lower Voltage
DB9 Cable
Higher Voltage
DB9 Cable

2108 Analog Output Module
Section 2 Installation and Operation
2-5
Figure 2-5 Terminal strip on the front of the 2108
Connection to the terminal strip on the 2108 will vary, depending
on how you are powering the flow module.
If the flow module is
powered separately from
the 2108:
1. Connect the white-with-green-line (white/green) wire to
Network A (terminal 4).
2. Connect the green-with-white-line (green/white) wire to
Network B (terminal 5).
3. Insulate the remaining four wires separately from each
other; they will not be connected to the terminal strip.
4. You will need to supply power to the 2108 in your equip-
ment cabinet. Connect the DC supply voltage to terminals
1 and 2.
5. Your connections should look like those in Figure 2-6.
Terminal Strip Slot
on 2108
Terminal Strip
Removed
Terminal Strip
Installed in 2108

2108 Analog Output Module
Section 2 Installation and Operation
2-6
Figure 2-6 Terminal connections if flow module is
powered separately
WARNING
Injury and/or equipment damage can result from
connecting modules or cables to a power source exceeding
the specified operating voltage range. Check labeling on all
modules and cables for voltage ranges.
Note
All connected system components should share a common
supply ground.
If the flow module and
2108 share the same power
source:
1. Connect the white/green wire to Network A (terminal 4).
2. Connect the green/white wire to Network B (terminal 5).
3. Connect the white/blue wire to terminal 1.
4. Connect the blue/white wire to terminal 2.
5. Insulate the two orange wires separate from each other;
they will not be connected to the terminal strip.
6. You will need to have a power source in your equipment
cabinet that supplies power to the 2108 and flow module.
Connect the DC supply voltage to terminals 1 and 2 (the
blue wires from the connection cable will also be connected
to these terminals, as described in steps 3 and 4 above).
7. Your connections should look like those in Figure 2-5.
XX
Power Supply
Wires
Green/White Wire
Orange Wires
Blue Wires
White/Green
Wire
Isco Connect Cable P/N 60-2004-219

2108 Analog Output Module
Section 2 Installation and Operation
2-7
Figure 2-7 Terminal Connections if Flow Module and
2108 Share Same Power Source
WARNING
Injury and/or equipment damage can result from
connecting modules or cables to a power source exceeding
the specified operating voltage range. Check labeling on all
modules and cables for voltage ranges.
Note
All connected system components should share a common
supply ground.
2.6 Connection to a 2151P
Module
The 2108 can be used with Isco’s intrinsically safe 2151P area
velocity flow system. Details concerning installation of the 2151P
can be found in that module’s user manual.
2.7 Connection to a
Control System
The terminal strip on the 2108 has three analog galvanically iso-
lated output channel pairs that allow for connection to your
SCADA, DCS, or other control system.
Each output has a 4-20 mA range by default. If a 0-20 mA range
is desired, contact Teledyne Isco to have your 2108 unit con-
figured at the factory.
The load capacity for each output is 600 ohms.
Connect the wires from your control system to terminals 7
through 12 on the terminal strip, as appropriate.
XX
Power Supply
Wires
Green/White Wire
Orange Wires
Blue/
White
Wire White/Green
Wire
White/Blue
Wire
Isco Connect Cable P/N 60-2004-219

2108 Analog Output Module
Section 2 Installation and Operation
2-8
2.8 Configuration in
Flowlink
Each analog output needs to be configured with Isco’s Flowlink
for Windows software.
The 2108 can be connected to a laptop computer or Isco Field
Wizard by using the six-pin network connector on the front of the
2108 (refer to Figure 2-8).
For connection to a laptop computer, use Isco’s RS-232 communi-
cation cable P/N 60-2004-046. For connection to a Field Wizard,
use communication cable (P/N 60-2004-056).
Figure 2-8 Network connector on the front of the 2108
Note
The 2108 requires Flowlink 4.15 or later. Earlier versions do
not support 2108 modules.
Flowlink Help Detailed Flowlink instructions are beyond the scope of this
manual. Flowlink’s operating instructions are available in a
Windows Help format. You can access the help topics for an
active window by clicking on its Help button or by pressing F1 on
your computer’s keyboard. You can also access Help topics from a
Contents and Index window (HELP>CONTENTS AND INDEX from
the Flowlink menu).
To configure the analog outputs in Flowlink, follow the instruc-
tions below:
1. Make the necessary connections for Flowlink to communi-
cate with the site. Then, using Flowlink, connect to the
site.
2. From the Measurements tab, select Channel 1. The screen
shown in Figure 2-9 will be displayed.