Emerson ControlWave GFC IStran Instruction Manual

Instruction Manual

s

Document: CI-CW-GFC-ISTRAN
Part: D301647X012
November, 2009

ControlWave GFC IStran

ControlWave GFC IStran

Intrinsically Safe Communication Interface

Remote Automa ti on Solution

www.EmersonProcess.com/Remote

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 Emerson Process
Management, Remote Automation Solutions division (RAS) for further information.

IMPORTANT! READ INSTRUCTIONS BEFORE STARTING!

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 RAS.

RETURNED EQUIPMENT WARNING

When returning any equipment to RAS for repairs or evaluation, please note the following: The
party sending such materials is responsible to ensure that the materials returned to RAS 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 RAS and save RAS harmless from
any liability or damage which RAS 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 gr ounded 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. Read supplemental document
S14006 for proper care and handling of ESD-sensitive components.

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1100 Buckingham Street, Watertown, CT 06795
Telephone [phone]

Emerson Process Management

Training

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For information or to enroll in any class, go to http://www.EmersonProcess.com/Remote
click on “Training” or contact our training department in Watertown at [phone].

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ControlWave GFC-IStran Instruction Manual

Contents

Chapter 1 – Introduction 1-1

1.1 Physical Description..................................................................................................................1-2

1.1.1 IStran PCB ....................................................................................................................1-3

Chapter 2 – Function and Electrical Characteristics 2-1

2.1 Hazardous and Non-Hazardous Characteristics.......................................................................2-1

2.1.1 Hazardous Interface......................................................................................................2-1

2.1.2 Non-Hazardous Interface..............................................................................................2-3

2.2 Switched & Unswitched Modes.................................................................................................2-5

2.2.1 Configuring the Hazardous Interface for Switched Mode.............................................2-6

2.2.2 Configuring the Hazardous Interface for Unswitched Mode.........................................2-6

2.2.3 Configuring the Non-Hazardous Interface for Switched Mode .....................................2-6

2.2.4 Configuring the Non-Hazardous Interface for Unswitched Mode.................................2-6

2.3 Non-Hazardous Power Output..................................................................................................2-6

Chapter 3 – System Wiring 3-1

3.1 Introduction to System Wiring...................................................................................................3-1

3.2 Grounding..................................................................................................................................3-1

3.3 Cable Length.............................................................................................................................3-2

3.4 Field Wiring Diagrams...............................................................................................................3-2

Chapter 4 – Installation 4-1

4.1 Installation Overview.................................................................................................................4-1

4.2 Installation Notes.......................................................................................................................4-1

Chapter 5 – Specifications 5-1

5.1 Environment..............................................................................................................................5-1

5.2 Operating Specifications...........................................................................................................5-1

Index I-1

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Chapter 1 – Introduction

The ControlWave GFC Intrinsically Safe IStran Communication
Interface (IStran) allows an intrinsically safe ControlWave Gas Flow
Computer / Corrector (CW-GFC-IS) to communicate with a device
located in a Division 2 or non-hazardous area.

Underwriter’s Laboratories (UL) approves the IStran interface with a
CW-GFC-IS unit when you use it with approved intrinsically safe
battery power/solar panel power, or when the CW-GFC-IS receives
external power through the IStran.

The IStran performs the following functions:

 Replaces six intrinsic safety barriers for RS-232 signals (3 in, 3 out)
 Provides 500V isolation between two devices
 Operates at speeds up to 19,200bps
 Allows the CW-GFC-IS to receive power from outside the Division

1 area

 Allows the CW-GFC-IS to control power to a radio or modem

located outside the Division 1 area

You can also use the IStran for certain applications where intrinsic
safety is unnecessary, such as to provide isolation between two devices
or to allow multiple devices to share a single radio or modem.

Figure 1-1. IStran Front View

Issued Nov-09 Introduction 1-1

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

1.1 Physical Description

The IStran assembly measures 6.25 inches (length) by 4.50 inches
(width) by approximately 1 inch (depth). (See Figure 1-2, 1-3, and 1-4.)

The IStran assembly consists of the following major components:

 One IStran printed circuit board (PCB) for the IStran assembly
 Yellow alodined aluminum base plate (0.060 inch thick)
 Black anodized cover (0.090 inch thick)

1-2 Introduction Issued Nov-09

Figure 1-2. Physical Dimensions – IStran – Front View

Figure 1-3. Physical Dimensions – IStran – Edge (Side) View

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Figure 1-4. IStran PCB Mounted on Base Plate (Cover removed)

1.1.1 IStran PCB

Switched Mode

Unswitched Mode

The IStran PCB provides two interfaces designated hazardous and non­hazardous. You configure each interface independently to operate in
either switched or unswitched mode.

Switched mode sets the TX drivers into a high-impedance state to
reduce power consumption.

In unswitched mode, the TX drivers are always active and they always
follow the corresponding RX inputs. In cases where power consumption
is not a key factor, configure the IStran for unswitched mode.

Issued Nov-09 Introduction 1-3

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ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Chapter 2 – Function and Electrical Characteristics

You can use the ControlWave GFC Intrinsically Safe IStran
Communication Interface (IStran) in both hazardous and non­hazardous environments.

2.1 Hazardous and Non-Hazardous Characteristics

Table 2-1 provides the characteristics common to both the hazardous
and non-hazardous IStran interfaces:

Table 2-1. Common Characteristics for Hazardous and Non-Hazardous Interfaces

Description Specification

Data Rate Maximum: 19.2 Kbps
Propagation Delay, any RX to

any TX
Output Enable Delay

(Switched Mode, enable to
TX valid)

RX Input High Level Minimum: 4.5 VDC

RX Input Low Level Minimum: -16 VDC

RX Input Load Resistance Typical: 3.01 Kohm
TX Output Load Resistance Minimum: 3 Kohm

Maximum: 10 uS

Typical: < 10 uS
Maximum: 50 uS

Maximum: 16 VDC

Maximum: 0.5 VDC

Quiescent Supply Current
(Both if in switched mode, all
TX off)

Idle Supply Current (Both if in
unswitched mode, all TX low)

Active Supply Current (Both if
active, worst case)

2.1.1 Hazardous Interface

You connect the hazardous interface to an intrinsically safe device.
Table 2-2, identifies each connector position, the corresponding signal
name, and briefly describes each input/output point on the hazardous
interface.

Table 2-2. Hazardous Interface Connector

Position Name Function

HJ2-4 HPOUT Hazardous Power Output - connect to HJ1-3

HJ2-3 HPIN Hazardous Power Input
HJ2-2 HGND Hazardous Interface Ground - connect to HJ2-

HJ2-1 CGND Enclosure Ground (Tied to NGND)
HJ1-8 HGND Hazardous Interface Ground - (Reference for

Maximum: 800 uA

Typical: 21 mA

Maximum: 43 mA

(HPIN) for single supply applications

1 (CGND) for single supply applications

Issued Nov-09 Function and Electrical Characteristics 2-1

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Position Name Function

HPOUT and signals)

HJ1-7 HPOUT Hazardous Power
HJ1-6 HRX3 Signal Input

HJ1-5 HRX2 Signal Input
HJ1-4 HRX1 Signal Input

HJ1-3 HTX3 Signal Output (Follows NRX3)
HJ1-2 HTX2 Signal Output (Follows NRX2)
HJ1-1 HTX1 Signal Output (Follows NRX1)
HJP1-1 SW Jumper to COM for Switched Mode
HJP1-2 COM Mode Selection Common
HJP1-3 UNSW Jumper to COM for Unswitched Mode

Table 2-3 provides the characteristics of the hazardous interface.

Table 2-3. Hazardous Interface Characteristics

Description Specification

HPOUT Voltage Typical 6.3 VDC (No Load)

Minimum: 5.9 VDC (Max. Load)
Maximum: 6.4 VDC (No Load)

HPOUT Current Limit
Threshold

HPOUT Load Capacitance Maximum: 100 uF
HPIN Quiescent Supply

Current
(Switched Mode,

Transmitters Off)
HPIN Supply Current

(All TX Outputs High, 3 KW
Load

HTX Output High Level Minimum: 4.5 VDC, Maximum: 5.0

HTX Output Low Level Minimum: 0 VDC, Maximum: 0.1

HJP1 Jumper Operation If you don’t install a jumper, or if you install the

Minimum: 130 mA at 8 VDC
Maximum: 300 mA at 16 VDC

Maximum: 100 uA

Maximum: 6 mA

VDC

VDC

jumper between pins 1 and 2 (SW), the
hazardous interface operates in switched
mode. If you install the jumper between pins 2
and 3 (UNSW), the hazardous interface
operates in unswitched mode. Figure 2-1
shows the jumper in switched mode.

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ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Figure 2-1. Setting Jumper HJP1

2.1.2 Non-Hazardous Interface

Typically you connect the non-hazardous interface to a radio or modem
located with the IStran assembly in a non-hazardous or Division 2 rated
area. Table 2-4 identifies each connector position and the corresponding
signal name, and provides a brief description of each I/O point on the
non-hazardous interface.

Table 2-4. Non-Hazardous Interface Connector

Position Name Function

NJ3-1 NPOUT Switched Power Output
NJ3-2 NGND Local Ground reference

(Return for NPOUT)
NJ2-1 NPIN Power Supply Input
NJ2-2 NGND Local Ground

(Return for NPIN)
NJ1-1 NTX1 Signal Output (Follows HRX1)

NJ1-2 NTX2 Signal Output (Follows HRX2)
NJ1-3 NTX3 Signal Output (Follows HRX3)
NJ1-4 NRX1 Signal Input
NJ1-5 NRX2 Signal Input
NJ1-6 NRX3 Signal Input
NJ1-7 NGND Local Ground
NJP1-1 SW Jumper to COM for Switched Mode
NJP1-2 COM Mode Selection Common
NJP1-3 UNSW Jumper to COM for Unswitched Mode

Issued Nov-09 Function and Electrical Characteristics 2-3

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Table 2-5 provides the characteristics of the non-hazardous interface.

Table 2-5. Non-Hazardous Interface Characteristics

Description Specification

NPIN Voltage (When
HPOUT is not used)

NPIN Voltage (When
HPOUT is used)

NPIN Supply Current
(Switched Mode,
Transmitters Off)

NPIN Supply Current (All
TX Outputs High, 3
KWLoads)

NPOUT Leakage Typical: < 1 uA Maximum: 100 uA

Minimum: 5.4 VDC
Maximum: 16 VDC

Minimum: 8 VDC
Maximum: 16 VDC

Typical: < 500 uA at 12 VDC, 77 F (25
C)

Maximum: 750 uA
Maximum: 37 mA

NPIN to NPOUT On-
Resistance (NPIN ³ 12 V)

NRX3 to NPOUT On Typical: < 10 uS
NPOUT Load Current Maximum: 1.8 A Continuous

NTX Output High Level Typical: 7.4 VDC into 3 Kohm Load

NTX Output Low Level Typical: -4.9 VDC into 3 Kohm Load

NJP1 Jumper Operation If you didn’t install a jumper, or if you installed

Typical: < 0.3 ohm
Maximum: 0.5 ohm

Maximum: 3.0 A Intermittent (Max 60
Seconds, 50% duty)

Minimum: 5.0 VDC
Maximum: 9.5 VDC

Minimum: -9.5 VDC
Maximum: -3.0 VDC

a jumper between pins 1 and 2 (SW), the non­hazardous interface operates in switched
mode. If you install a jumper between pins 2
and 3 (UNSW), the non-hazardous interface
operates in unswitched mode. (Figure 2-2
shows the jumper in switched mode.)

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ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Figure 2-2. Setting Jumper NJP1

2.2 Switched & Unswitched Modes

You can configure each IStran interface independently to operate in
switched or unswitched mode. In switched mode, the TX drivers can
enter a high-impedance state to reduce power consumption. The outputs
transition smoothly to and from the high-impedance state. Most modern
device inputs pull the high impedance IStran output to ground and
interpret it as a low, or mark state. Some devices may not properly
interpret the high-impedance signal, and in some systems it is
impractical for you to operate either or both interfaces in switched
mode. In these cases, or when power consumption is not a concern,
configure the interface(s) for unswitched mode. In unswitched mode,
the TX drivers are always active and they always follow the
corresponding RX inputs.

You enable or disable switched mode for the hazardous interface by
jumper position HJP1, and for the non-hazardous interface by jumper
position NJP1 (see Figures 2-1 and 2-2). When either interface is in
switched mode, the RX3 (NRX3 or HRX3) input of the opposite
interface turns it on or off.

Issued Nov-09 Function and Electrical Characteristics 2-5

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

2.2.1 Configuring the Hazardous Interface for Switched Mode

To configure the hazardous interface for switched mode, place the
supplied shorting jumper in the HJP1 position marked SW (short HJP1
pins 1 and 2 as shown in Figure 2-1). If you don’t install a jumper at
HJP1 the hazardous interface defaults to switched mode. When you
configure the hazardous interface for switched mode, the HTX outputs
are in a high-impedance state when NRX3 is low (or negative), and the
HTX outputs follow the NRX inputs normally when NRX3 is high
(positive).

2.2.2 Configuring the Hazardous Interface for Unswitched
Mode

To configure the hazardous interface for unswitched mode, place the
supplied shorting jumper in the HJP1 position marked UNSW (short
HJP1 pins 2 and 3). This is the opposite jumper position of that shown
in Figure 2-1. In unswitched mode, the HTX outputs remain on and
they always follow the corresponding NRX inputs.

2.2.3 Configuring the Non-Hazardous Interface for Switched
Mode

To configure the non-hazardous interface for switched mode, place the
supplied shorting jumper in the NJP1 position marked SW (short NJP1
pins 1 and 2 as shown in Figure 2-2). The non-hazardous interface is
also in switched mode by default if you don’t install a jumper at NJP1.
When you configure the non-hazardous interface for switched mode, the
NTX outputs are in a high-impedance state when HRX3 is low (or
negative), and the NTX outputs follow the HRX inputs normally when
HRX3 is high (positive).

2.2.4 Configuring the Non-Hazardous Interface for Unswitched
Mode

To configure the non-hazardous interface for unswitched mode, place
the supplied shorting jumper in the position marked UNSW (short NJP1
pins 2 and 3). This is the opposite jumper position of that shown in
Figure 2-2. In unswitched mode, the NTX outputs are always turned on
and they always follow the corresponding HRX inputs.

2.3 Non-Hazardous Power Output

The non-hazardous power supply is routed through a FET (field effect
transistor) from the power input to an output terminal. The power
supply comes in on the NPIN terminal and switched power goes out on
the NPOUT terminal.

2-6 Function and Electrical Characteristics Issued Nov-09

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

When hazardous interface signal input HRX3 is at a high (positive)
level, NPOUT turns on and can supply power to an external device.
When HRX3 is at a low (or negative) level, NPOUT turns off. You
determine the voltage drop between NPIN and NPOUT by multiplying
the NPOUT load current by the NPIN to NPOUT on-resistance. You
must also take into account the resistance of the associated field wiring
when you calculate the total drop between the power supply and the
load.

In order to minimize resistance between NPIN and NPOUT, the IStran

Caution

does not
over-current protection at the power source to prevent damage to the
IStran, power source, or load in case of a short circuit or other over­current condition.

provide over-current. You must install a fuse or other means of

Issued Nov-09 Function and Electrical Characteristics 2-7

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2-8 Function and Electrical Characteristics Issued Nov-09

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Chapter 3 – System Wiring

This chapter includes details on grounding and wiring for the IStran.

3.1 Introduction to System Wiring

The IStran connects a radio, modem, or other communications device to
a ControlWave GFC-IS Flow Computer/Corrector. An IStran can also
provide an intrinsically safe interface between an external power supply
and RS-232 signals associated with a radio, modem or ControlWave
RTU (in a non-hazardous area) and a ControlWave GFC-IS in a Class I,
Division 1 area.

3.2 Grounding

The IStran provides up to 500V of isolation between the hazardous and
non-hazardous interfaces. When using the ground isolation capability of
the IStran, devices on either side require separate power sources, and
each source must power the corresponding IStran interface. Refer to the
field wiring diagrams in Section 3.4 for systems with independent power
sources.

When isolation is not required, a single power source supplies both
IStran interfaces and, optionally, both connected devices. To power both
IStran interfaces using a single power source, connect the power source
between NPIN and NGND. Use connector HJ2 (see Figure 1-4) as a
jumper position to wire HPOUT to HPIN and HGND to CGND. Note
that CGND and NGND are internally connected, and that CGND is
connected to the IStran case. Refer to the field wiring diagrams in
Section 3.4 for systems with a single power source.

When a ground connection already exists between the power source and
the ControlWave or communications device, do not wire the ground
terminal on the IStran communications connector (NJ1 or HJ1). The
ground reference established on the IStran power connector (NJ2 or
HJ2) serves as both power supply return and signal ground reference.
Wiring the communications connector ground terminal may introduce a
ground loop and degrade the performance of the IStran under these
circumstances. The wiring diagrams in Section 3.4 illustrate the
recommended practices.

For intrinsic safety applications, you must use redundant earth grounds.
Both grounds must measure less than one ohm to earth. The NGND
terminal provides one ground, and the case provides the other. If the
mounting panel does not provide a suitable ground path, connect a
12AWG or larger ground conductor to one of the IStran mounting
screws.

Issued Nov-09 System Wiring 3-1

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

3.3 Cable Length

Underwriter’s Laboratories (UL) lists the IStran for use with cable
lengths up to 25 feet on either or both interfaces. Typically, you install
the IStran in close proximity to the communications device (connected
to the non-hazardous interface) and at some distance from the CW­GFC-IS (connected to the hazardous interface). Because of cable
capacitance and inductance, 25 feet is the maximum cable length
allowable for use with a CW-GFC-IS located in a Division 1 area.

The cable length between a CW-GFC-IS operating in a Division 1 area

Warning

and the IStran must not exceed 25 feet.

3.4 Field Wiring Diagrams

Figure 3-1 illustrates a typical communication system. The power
source to the non-hazardous interface must not use or generate more
than 250V. If you install the IStran in a Division 2 area, you must make
power input and output connections using Division 2 wiring methods
described in Section 4.1.

In this example a single power source supplies both the communications
device and the CW-GFC-IS. The power supply input range for this
configuration is 8 to 16V. You connect the grounds of both devices
together through the IStran. The CW-GFC-IS power supply current
must be 120mA or less, and it must operate down to 5.9V. The IS
termination panel (part number 400135-01-9) contains the power and
communication connections.

Figure 3-1. Modem System with Single Power Source

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ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Figure 3-2 is similar to Figure 3-1 except it uses an MDS radio instead
of a modem.

Figure 3-2. Radio System with Single Power Source

Figures 3-3 and 3-4 illustrate an externally powered CW-GFC-IS

(without a modem or radio). In this example, the external power source
to the non-hazardous interface must not generate more than 16Vdc and
must be able to supply at least 8Vdc. If you install the IStran in a
Division 2 area, you must connect the power inputs and outputs using
Division 2 wiring methods. (See Section 4.1.)

Note: If you only require a modem or radio, refer to Figure 3-1 and

Figure 3-2. The only difference is that you can replace the 12V

battery by an external 8 to 16 Vdc power supply.

Issued Nov-09 System Wiring 3-3

Figure 3-3. CW-GFC-IS with External Power Source

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Figure 3-4. CW-GFC-IS with External Power Supply

3-4 System Wiring Issued Nov-09

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Chapter 4 – Installation

4.1 Installation Overview

The IStran and the communications device reside in a non-hazardous or
Division 2 rated area, while the CW-GFC-IS resides in a Division 1,
Division 2, or non-hazardous area.

You must provide a suitable enclosure for the IStran. When you mount
the IStran in a Division 2 area, you must make the non-hazardous
interface connections in accordance with Article 501-4(b) of the

National Electrical Code NFPA 70.

When you connect the IStran to a CW-GFC-IS mounted in a Division 1

Caution

area, wire all circuits according to wiring methods specified in article 504
of the National Electrical Code NFPA 70. Contact your IStran supplier for
assistance.

Warning

4.2 Installation Notes

When you install the IStran in a Division 2 area, ensure that the area is
non-hazardous before you connect or disconnect the non-hazardous
interface.

Use four #6 screws with lock washers to secure the IStran to a grounded
metal panel. Illustrations in Chapter 1 show the physical dimensions of
the IStran units. The four mounting holes/slots are 0.156" in diameter.
Total height is approximately 1". The case material is 5052 aluminum
with a black anodize finish. The thickness of the base is 0.060", and the
top is 0.090". The case hardware is stainless steel.

The IStran accepts stranded wires up to 14AWG. When you must insert
two wires in a single position, 18AWG is the maximum recommended
size. The recommended strip length is 1/4 inch, and the insulation must
not extend into the connector clamp. For cables, use 26AWG or larger
conductors and do not configure them as twisted pairs. If you use a
shield, connect it only at one end, closest to the system ground
reference. For optimum performance over long distances, use low­capacitance cables. In the multi-drop configuration, keep all IStran units
in close proximity.

Issued Nov-09 Installation 4-1

Secure all wiring before you apply power to the IStran or to the
associated devices. For intrinsic safety applications, use a single cable to
connect the IStran hazardous interface to the intrinsically safe device.
Maintain a minimum 2” separation between the intrinsically safe wiring
and all other wiring. Install the IStran hazardous interface near the point
where the intrinsically safe wiring exits the enclosure housing the

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

IStran. Do not install any other wiring through the same hole or allow
other wires to share a cable or conduit with the intrinsically safe wiring.
Secure the intrinsically safe wiring and limit slack to ensure that, should
one of the intrinsically safe wires become dislodged from an IStran
terminal, it must still maintain a 2” separation with either the IStran
non-hazardous interface wiring or any other circuits except those on the
IStran hazardous interface.

Refer to Figures 3-1 through 3-4 in Chapter 3 when you connect wires
between an optional modem or radio and an IStran assembly.

Note: MDS and Freewave radios use different RXD/TXD naming

conventions. MDS uses RXD and TXD to mean “receive input”
and “transmit output” respectively, while Freewave uses RXD
for “transmit output” and TXD for “receive input.”

Refer to Chapter 3 when you connect wires between an externally
powered CW-GFC-IS and an IStran.

4-2 Installation Issued Nov-09

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

Chapter 5 – Specifications

5.1 Environment

The IStran design supports operation inside a building or a weather­proof enclosure only.

5.2 Operating Specifications

Table 5-1 provides the operating specifications for the IStran:

Table 5-1. IStran Operating Specifications

Description Specification

Operating
Temperature Range

Operating Humidity
Range

Transient
Susceptibility

Vibration Effect

ESD Susceptibility

EMI Compatibility

Hazardous Locations

o

-40

C to +70oC (-40oF to +158oF)

15% to 95% RH (non-condensing)

Field connected circuits designed to meet
requirements of ANSI/IEEE C37.90.1-1989
(formerly IEEE 472) for surge withstand capability.

10 to 500 Hz at 1 g on any axis per SAMA PMC-31-
1 without damage or impairment.

Field connected circuits designed to meet the
requirements of IEC 801-2 for ESD withstand
capability up to 10KV.

Designed to meet the susceptibility requirements of
IEC 801-3 level 2(3V/M) from 500kHz to 500MHz.

Designed to meet FCC Rules Part J, Subpart 15,
Class A for radiated emissions.

Designed to meet NFPA and UL requirements for
installation in Class I, Division 2, Groups C and D
hazardous locations.

Designed to meet NFPA and UL requirements for
connection to intrinsically safe devices located in
Division 1 locations.

The intrinsically safe device must be designed
and/or approved for the intended connection.

Issued Nov-09 Specifications 5-1

ControlWave GFC IS Communication Interface Manual (CI-CW-GFC-ISTRAN)

5-2 Specifications Issued Nov-09

WARRANTY

A. Remote Automation Solutions (RAS) warrants that goods described herein and manufactured by RAS are

free from defects in material and workmanship for one year from the date of shipment unless otherwise
agreed to by RAS in writing.

B. RAS 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 RAS 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 RAS consent, (iii) not installed,
maintained and operated in strict compliance with instructions furnished by RAS or (iv) worn, injured or
damaged from abnormal or abusive use in service time.

E. These warranties are expressly in lieu of all other warranties express or implied (including without limitation

warranties as to merchantability and fitness for a particular purpose), and no warranties, express or
implied, nor any representations, promises, or statements have been made by RAS unless endorsed
herein in writing. Further, there are no warranties which extend beyond the description of the face hereof.

F. No agent of RAS 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 RAS 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 the RAS Watertown office, unless the RAS Watertown office

designates a different location, transportation prepaid, within thirty (30) days of the sending of such

notification and which upon examination by RAS proves to be defective in material and workmanship. RAS

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 RAS, the Buyer can arrange to have a RAS

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 RAS 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 Remote Automation Solutions (RAS) 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 RAS
Watertown 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 RAS Repair Dept. representative will

return the call (or other requested method) with a RA number.

B. E-MAIL
Accessing the form (GBU 13.01) via the RAS Web site (www.emersonprocess.com/remote) and sending it

via E-Mail to [e-mail]

. A RAS Repair Dept. representative will return E-Mail (or

other requested method) with a RA number.

C. Mail
Mail the form (GBU 13.01) to

Remote Automation Solutions

A Division of Emerson Process Management
Repair Dept.
1100 Buckingham Street
Watertown, CT 06795

A RAS Repair Dept. representative will return call (or other requested method) with a RA number.
D. Phone

Calling the RAS Repair Department at [phone]. A RAS Repair Department representative will

record a RA number on the form and complete Part I, 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 included with the product
being returned. This will allow us to quickly track, repair, and return your product to you.

Remote Automation Solutions

Repair Authorization Form

(

Providing this information will permit Remote Automation Solutions 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. _________

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

The party sending in material is responsible to ensure that the materials returned are clean to safe levels,
defined and/or determined by applicable federal, state and /or local law regulations or codes. Such party agrees
to indemnify Remote Automation Solutions harmless to any liability or damage which Remote Automation Solutions
may incur or suffer due to such party’s failure to so act.

Part I Please complete the following information for single unit or multiple unit returns

Please be aware of the Non warranty standard
charge:

• There is a $100 minimum evaluation charge.

Address No. _____________ Address No. ____________

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:

Other: ______________________________________

3. What is the Firmware revision?_______________ What is the Software & version? _______________

Standalone

RS-485

Ethernet Modem (PLM (2W or 4W) or SNW)

Part III If checking “replaced” for any question below, check an alternate option if replacement is not

available

A. If product is deemed not repairable would you like your product:

B. If Remote Automation Solutions is unable to verify the discrepancy, would you like the product:

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: Remote Automation Solutions, Repair Dept., 1100 Buckingham Street, Watertown, CT 06795

Form GBU 13.01 Rev. F 11/25/08

Phone: [phone] Fax: [phone]

returned replaced scrapped?

returned

BLANK PAGE

ControlWave GFC-IStran Instruction Manual

Index

Non-Hazardous power output.............................2-6

F

Field wiring diagrams..........................................3-2

Figures

1-1. Istran Front View..................................... 1-1

1-2. Physical Dimensions - Istran Front View 1-2
1-3. Physical Dimensions – IStran Edge (Side)

View.............................................................. 1-2

1-4. Istran PCB Mounted on Base Plate........ 1-3

2-1. Setting Jumper HJP1.............................. 2-3

2-2. Setting Jumper NJP1.............................. 2-5

3-1. Modem System with Single Power Source3-

2
3-2. Radio System with Single Power Source 3-3
3-3. CW-GFC-IS with External Power Source3-3
3-4. CW-GFC-IS with external power supply. 3-4

G

S

Specifications......................................................5-1

Switched Mode ............................................1-3, 2-5

configuring the Hazardous interface for ......... 2-6

configuring the non-Hazardous interface for.. 2-6

T

Tables

2-1. Common Characteristics for Hazardous and

Non-Hazardous Interfaces ........................... 2-1

2-2. Hazardous Interface Connector..............2-1

2-3. Hazardous Interface Characteristics....... 2-2

2-4. Non-Hazardous Interface Connector ...... 2-3

2-5. Non-Hazardous Interface Characteristics2-4

5-1. IStran Operating Specifications............... 5-1

Grounding........................................................... 3-1

H

Hazardous characteristics .................................. 2-1

Hazardous interface

configuring for Switched Mode....................... 2-6

N

Non-Hazardous characteristics........................... 2-1

U

Un-Switched Mode.......................................1-3, 2-5

configuring the Hazardous interface for ......... 2-6

configuring the non-Hazardous interface for.. 2-6

W

Wiring..................................................................3-1

field wiring diagrams.......................................3-2

Issued Nov-09 Index I-1

Customer Instruction Manual

CI-CW-GFC-ISTRAN

ControlWave GFC IStran

November, 2009

Emerson Process Management
Remote Automation Solutions

1100 Buckingham Street
Waterto

wn, CT 06795
Phone: [phone]
Fax: [phone]
www.EmersonProcess.com/Remote

Emerson Process Management
Remote Automation Solutions

6338 Viscount Rd.
Mississauga, Ont
Canada
Phone: [phone]
Fax: [phone]
www.EmersonProcess.com/Remote

Emerso

n Process Management SA de CV

Calle 10 #145
Col. San Pedro de los Pinos
01180 Mexico, D.F.
Mexico
T [phone]
F [phone]
www.EmersonProcess.com/Remote

Emerso

n Process Management, Ltd.

Remote Automation Solutions

Blackpole Road
W

orcester, WR3 8YB
United Kingdom
Phone: [phone]
Fax: [phone]
www.EmersonProcess.com/Remote

Emerso

n Process Management AP Pte Ltd.

Remote Automation Solutions Division

1 Pandan Crescent
Singapore 128461
Phone: [phone]
Fax: [phone]
www.EmersonProcess.com/Remote

. L4V 1H3

NOTICE

“Remote Automation Solutions (“RAS”), division of Emerson Process
Management shall not be liable for technical or editorial errors in this manual
or omissions from this manual. RAS MAKES NO WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH
RESPECT TO THIS MANUAL AND, IN NO EVENT SHALL RAS BE LIABLE
FOR ANY INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL
DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PRODUCTION,
LOSS OF PROFITS, LOSS OF REVENUE OR USE AND COSTS
INCURRED INCLUDING WITHOUT LIMITATION FOR CAPITAL, FUEL AND
POWER, AND CLAIMS OF THIRD PARTIES.

Bristol, Inc., Bristol Babcock Lt
Computer Division are wholly owned subsidiaries of Emerson Electric Co.
doing business as Remote Automation Solutions (“RAS”), a division of
Emerson Process Management. FloBoss, ROCLINK, Bristol, Bristol
Babcock, ControlWave, TeleFlow and Helicoid are trademarks of RAS. AMS,
PlantWeb and the PlantWeb logo are marks of Emerson Electric Co. The
Emerson logo is a trademark and service mark of the Emerson Electric Co.
All other trademarks are property of their respective owners.

The contents of this publication are presented for informational purposes
only. While every effort has been made to ensure informational accuracy,
they are not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or
applicability. RAS reserves the right to modify or improve the designs or
specifications of such products at any time without notice. All sales are
governed by RAS’ terms and conditions which are available upon request.

© 2009 Remote Automation Solutions, division of Emerson Process
Management. All rights reserved.

d, Bristol Canada, BBI SA de CV and the Flow