Pepperl+Fuchs Viator HM-PF-RS232-010001 User manual

Viator® RS-232 HART
Interface
HM-PF-RS232-010001
PROCESS AUTOMATION
MANUAL

With regard to the supply of products, the current issue of the following
document is applicable: The General Terms of Delivery for Products and
Services of the Electrical ndustry, published by the Central Association of
the Electrical ndustry (Zentralverband Elektrotechnik und Elektroindustrie
(ZVE ) e.V.) in its most recent version as well as the supplementary
clause: "Expanded reservation of proprietorship"
Viator® RS-232 HART nterface

Viator® RS-232 HART nterface
Contents
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1 Intro uction....................................................4
1.1 Content of this Document .................................................4
1.2 Manufacturer ....................................................................5
1.3 Target Group, Personnel...................................................5
1.4 Symbols Used ..................................................................6
2 Overview.........................................................8
3 Directive Conformity......................................9
4 Technical Data..............................................10
4.1 RS-232 Pin Connections ................................................13
5 Getting Starte .............................................15
5.1 Hardware and Software Requirements ...........................15
5.2 Connecting to a HART Field Device ...............................15

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Viator® RS-232 HART nterface
ntroduction
1 ntroduction
1.1 Content of this Document
This document contains information that you need in order to use
your product throughout the applicable stages of the product life
cycle. These can include the following:
■Product identification
■Delivery, transport, and storage
■Mounting and installation
■Commissioning and operation
■Maintenance and repair
■Troubleshooting
■Dismounting
■Disposal
Note
This document does not substitute the software manual and/or
instruction manual.
Note
For full information on the product, refer to the software manual
and/or instruction manual, and further documentation on the nternet
at www.pepperl-fuchs.com.

Viator® RS-232 HART nterface
ntroduction
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The documentation consists of the following parts:
■Present document
■nstruction manual
■Datasheet
Additionally, the following parts may belong to the documentation, if
applicable:
■EU-type examination certificate
■EU declaration of conformity
■Attestation of conformity
■Certificates
■Control drawings
■Additional documents
1.2 Manufacturer
1.3 Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation,
maintenance, and dismounting lies with the plant operator.
Pepperl+Fuchs Group
Lilienthalstraße 200, 68307 Mannheim, Germany
nternet: www.pepperl-fuchs.com

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Viator® RS-232 HART nterface
ntroduction
Only appropriately trained and qualified personnel may carry out
mounting, installation, commissioning, operation, maintenance, and
dismounting of the product. The personnel must have read and
understood the instruction manual and the further documentation.
Prior to using the product make yourself familiar with it. Read the
document carefully.
1.4 Symbols Used
This document contains symbols for the identification of warning
messages and of informative messages.
Warning Messages
You will find warning messages, whenever dangers may arise from
your actions. t is mandatory that you observe these warning
messages for your personal safety and in order to avoid property
damage.
Depending on the risk level, the warning messages are displayed in
descending order as follows:
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.

Viator® RS-232 HART nterface
ntroduction
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Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are
prompted to perform an action or a sequence of actions.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property
damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected
systems and plants, or result in their complete failure.
Note
This symbol brings important information to your attention.

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Viator® RS-232 HART nterface
Overview
2 Overview
The Viator® RS-232 HART nterface allows you to communicate with
HART field devices using a personal computer, the computer's serial
port, and HART communication software.
The interface requires no special installation, operates on low power
for laptop compatibility, is isolated, and is fully HART compliant. t
draws power from the RS-232 interface and requires no external
power. The interface operates on as little as 4 mA. t adheres to the
E A-RS232C standard and supports hardware handshaking.
The RS-232 interface is enclosed in a compact, rugged
polycarbonate housing, suitable for industrial environments. t
connects directly to your computer through the RS-232-DB connector
and connects to field devices with an integral 6-foot cable that
terminates in two test clips.
For the most recent version of this document, visit
https://www.pepperl-fuchs.com/.

Viator® RS-232 HART nterface
Directive Conformity
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3 Directive Conformity
Europe
Directive 2014/30/EU EN 61326-1:2013
EN 62368-1:2014-08
Directive 2011/65/EU (RoHS) EN EC 63000:2018

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Viator® RS-232 HART nterface
Technical Data
4 Technical Data
Supply
nput current 4 mA
Power supply 4 ... 12 V,
powered by DTR and RS-232 inputs,
No external power required
nterface
nterface type RS-232 port
Output
Signal 0.5 ± 0.1 Vpp trapezoidal wave at 1200/2200 Hz
Galvanic isolation
Output/interface 1500 V DC

Viator® RS-232 HART nterface
Technical Data
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System requirements
Operating system operating system that supports serial COM port
Ambient conditions
Operating
temperature
-20 ... 50 °C (-4 ... 122 °F)
Storage
temperature
-20 ... 60 °C (-4 ... 140 °F)
Relative humidity 0 ... 95 % non-condensing
Mechanical specifications
Housing length 49 mm
Housing width 33 mm
Housing height 15 mm
Degree of
protection
P20
Connection DB-9 connector , 2-pin polarity-insensitive test clips
Material Polycarbonate

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Viator® RS-232 HART nterface
Technical Data
Dimensions 49 mm x 33 mm x 15 mm
Cable length 1.8 m 2-strand wire terminating in 2 test clips
General information
Supplementary
information
Observe the certificates, declarations of conformity,
instruction manuals, and manuals where
applicable. For information see www.pepperl-
fuchs.com.
Mechanical specifications

Viator® RS-232 HART nterface
Technical Data
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4.1 RS-232 Pin Connections
nputs
Pin
# mpediance Ohms Voltage Levels
Mark/Tr
ue
Space/
False
Transmit data (TXD) 3 220 K 2 ... 0 V -12 ... 0
V
Data terminal ready
(DTR)
4 % pwr supply
current
+ DSR load current
+ RXD if true load
current
+CD if true load
current
2 ... 0 V -12 ... 0
V
Request to send
(RTS)
7 220 K
+ % pwr supply
current
+ CTS load current
2 ... 0 V -12 ... 0
V
Ground 5 Ref 0 V 0 V

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Viator® RS-232 HART nterface
Technical Data
Outputs
Pin
# mpediance Ohms Voltage Levels
Carrier detect (CD) 1 4 V through 220
Ohm if true
-4 V through 220
Ohm if false
3.5 V / -3.5 V
Receive data (RXD) 2 4 V through 220
Ohm if true
-4 V through 220
Ohm if false
3.5 V / -3.5 V
Data set ready
(DSR)
6 Hardwired from
DTR
DTR
Clear to send (CTS) 8 Hardwired from
RTS
RTS
Ring indicator (R ) 9 Not used Not used
Note
RTS or DTR must exceed +/- 4 V to power the unit. nputs must not
exceed +/- 12 V and must be current limited to +/- 10 mA. % pwr
supply current is supplied by the RTS or DTR based on whichever is
more positive.

Viator® RS-232 HART nterface
Getting Started
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5 Getting Started
5.1 Hardware and Software Requirements
■Viator RS-232 HART nterface, HM-PF-RS232-010001
■Computer with one or more RS-232 serial ports (male DB-9
connector)
■Operating system that supports RS-232 serial ports
■Viator software utilities and documentation
■HART application software for communication with HART field
devices
5.2 Connecting to a HART Field Device
The Viator RS-232 nterface has a female 9-pin DB-9 serial port for
connecting to the computer. The standard interface has an integrated
6-foot connector cable terminating in 2 polarity-insensitive test clips.
The interface connection to the HART network is transformer isolated
and polarity insensitive. Transformer isolation allows you to connect
the interface across the load resistor or across the HART device.
Polarity insensitivity means that you may attach either test clip to
either side of the HART device or load resistor.

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Viator® RS-232 HART nterface
Getting Started
Figure 5.1
Connect the test clips:
1. across the HART field device or
2. across the load resistor.

Viator® RS-232 HART nterface
Getting Started
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Warning!
Do not connect the Viator interface across the power supply!
This will not allow communication with the HART field device.

Pepperl+Fuchs Quality
Download our latest policy here:
www.pepperl-fuchs.com/quality
70137502 DOCT-5947B
12/2021