Technical Information

Fieldgate Input Module FXZ520
Analog and digital inputs
as extensions to Fieldgate FXA520

Application
Fieldgate Input Modules FXZ520 are used together withFieldgate FXA520 for remote scanning of conventional
4...20 mA measuring instruments, binary switches andpulse transmitters.
Each Fieldgate Input Module FXZ520 has four
galvanically isolated channels of the same type. Up toseven FXZ520s can be operated with a Fieldgate FXA520.
Together with the two integrated analog inputs of theFieldgate itself, up to 30 conventional measuring pointscan be connected.
Alternatively, Input Module FXZ520 can be used withFieldgate FXA520 in mixed operation with a HART
multiplexer. This allows remote scanning of both legacy
and newer HART devices in the installed base.

TI00023S/00/EN/14.15 FXZ520
71282713

Features and Benefits• Integration of conventional inputs in remote scanningof the installed base
• Modular extension of Fieldgate FXA520 with 4 to 28
additional channels• Individual galvanic isolation of all channels• Voltage drop per channel ≤ 6 V• Configuration via web pages of Fieldgate FXA520• Scaling and linearization of analog inputs• Optional totalizing of digital input signals• Mixed operation with HART multiplexer posssible

Fieldgate Input Module FXZ520

Function and System DesignFunction

Fieldgate Input Module FXZ520 connects conventional measuring instruments, switches and pulse
transmitters to a Fieldgate FXA520. Up to seven input modules can be connected to one Fieldgate via theRS-485 interface, allowing up to 30 measured values to be displayed in the Fieldgate Web server.
Fieldgate Input Module FXZ520 is available in two versions:• Analog: for the connection of up to four 4...20 mA devices• Digital: for the connection of up to four binary switches or pulse transmitters.
Analog input signals can be scaled and linearized in the Fieldgate Web server. In addition, warning and alarm
limits can be assigned. Binary signals can be configured as switching signals or as up- and down-counttotalizers.

System design

Fig. 1 shows a typical system architecture. Up to four analog or digital devices with separate power supplies areconnected to one Fieldgate Input Module FXZ520 each of the appropriate type.
Depending upon the type of Fieldgate FXA520, the Fieldgate Web server publishes the conditioned signals toan Internet browser or Fieldgate Viewer via Ethernet, telephone or GSM. In this manner, the measured values
and switching status can be observed from anywhere in the world.

FXA520FXZ520
AnalogFXZ520Digital

#1

#2

WWW

#7

Web-Browser
Fieldgate Viewer
…

PSU

PSU

FXZ520 Digital

FXZ520 Analog

PSU

FXZ520 Digital...

AnalogEthernet
GSM

AI1..AI4

DI1..DI4PSU

PSU

PSU

PSU

PSU

Fig. 1: Example of system architecture

A total of seven Input Modules can be connected to the Fieldgate via the RS-485 interface. The RS-485
addresses are set via DIP switch. A terminating resistor is integrated in the Fieldgate FXA520. The secondterminating resistor is not required when the Fieldgate and Input Modules are mounted in a cabinet.

FXA520FXZ520 AI/DI

RS-485A B
26 27 28

#2

RS-485A B
4 5 6

FXZ520 AI/DI#4

RS-485A B
4 5 6

FXZ520 AI/DI#6

RS-485A B
4 5 6TT

RS-4854 5 6A B
RS-485#1

FXZ520 AI/DI

4 5 6A B
RS-485FXZ520 AI/DI#34 5 6A B
RS-485FXZ520 AI/DI#54 5 6A B
RS-485#7

FXZ520 AI/DI

Fig. 2: Example of RS-485 bus architecture

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Fieldgate Input Module FXZ520

Input
FXZ520 Analog

FXZ520 Digital

No. of analog inputs

4Input signal

4...20 mA, active

Max. input current per channel

70 mA

Accuracy

better than 0.5%

Voltage drop (incl. protective diode)≤6.0 V

Galvanic isolation

Mutual isolation between channels and internal circuits

Connecting cable

Installation cable, unshieldedLine resistanceMax. 25 Ω per coreNo. of digital inputs

4Input signal

Voltage signal, 0 V to 30 V

Switching thresholds

Low signal: -3 V to +5 V
High signal: +15 V to +30 V

Input current for High signal

5 mA

Max. quiescent cuurent for Low signal 1 mA
Event counter measuring range

0 kHz to 12.5 kHz

Galvanic isolation

Mutual isolation between channels and internal circuits

Connecting cable

Installation cable, inshieldedLine resistanceMax. 25 Ω per core

Output
RS-485 interface

Baudrate

9600 Byte/s

Module addresses

Via DIP switch, 1 to 7

Channel addresses

Dependent upon module address:
Module address 1: 4, 5, 6, 7; .... module address 7: 28, 29, 30, 31

Internal resistance68 kΩ

Galvanic isolation

500 V rms

Connecting cable

Shielded, twisted pairs (STP)

Termination A-B

For long cable runs, both ends 120 Ω• A terminating resistor is built into the Fieldgate FXA720• For cabinet mounting, the second terminating resistor is not required

Max. cable length

1200 mPower Supply
PowerVoltage range

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Alternating voltage version

Direct voltage version

85 VAC to 253 VAC, 50/60 Hz

20...60 VDC or 20...30 VACGalvanic isolation

Safe isolation between power supply and internal circuits

Power consumption<4 VA at 253 VAC<1 W at 20 VDC

3Fieldgate Input Module FXZ520

Operating Conditions

Cabinet mounting

Installation

Control cabinet or protective enclosure:The devices are to be mounted such that they are protected from the weather,mechanical damage, and if possible direct sunlight. This especially important inwarm countries.
For protective enclosures max. 1x FXA520 + 2x FXZ520 are allowed

Mechanical conditions

Class 3M2 as per EN 60721-3-3

For cabinet mounting, the minimum clearances must be observed• between assemblies with Ex and non-Ex power supplies• between Ex assemblies with separate power supplies

FXZ520FXZ520

EX

min.
50 mm
(2 in)

EX

min.
50 mm
(2 in)min.
50 mm(2 in)

Environment

Ambient temperature
Operation:

Storage:4?????

MechanicalEX

With natural convection:
Single mounting: –20°C to +60°C (–4°F to +140°F)
Row mounting without lateral spacing: –20°C to +50°C (–4°F to +122°F)
In protective enclosure, see installation: –20°C to +40°C (–4°F to +104°F)–25°C to +85°C, preferably at +20°C(–13°F to +185°F, preferably at +68°F)

Climatic conditions

Class 3K3 as per DIN EN 60721-3-3

EMC
Interference:
Immunity:

Guideline 89/336/EWG
as per EN 61326, Class B equipment
as per EN 61326, Annex A (industrial locations) andNAMUR Recommendation NE21

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Fieldgate Input Module FXZ520

Mechanical Construction
GeneralHousing

Rail-mountedMounting

Top-hat rail to EN 60715; HT 35x7,5 or EN 60715; HT 35x15

Degree of protection

IP 20 according to EN 60529 / IK06 according to IEC 62262

Material

Housing: polycarbonate; color: light grey, RAL 7035
Front panel: polyamide PA6; color: blue
Top-hat rail fastener: polyamide PA6; color: black RAL 9005

Terminals

Type of terminal: pluggable, screw terminals
Core cross-section: 1x 2.5 mm or 2x 1.5 mm (1x 10 AWG, 2x 15 AWG)

Weight

110 g (4 oz)

Dimensions

22.5 mm x 108 mm x 112 mm (0.9" x 4.25" x 4.4")
Dimensional drawing, see below

Dimensional drawing

FXZ52095 mm (3.75 in)

112 mm (4.4 in)

108 mm (4.25 in)

22.5 mm(0.9 in)

EN 60715 TH 35-7.5
EN 60715 TH 35-15

Position

No.

Function

Remarks

1

L1 or L+85 to 253 VAC
20 to 60 VDC or 20 to 30 VAC, 50/60 Hz

2

L1 or L+

15

N or L–

16

N or L–

4GND

RS-485 communication interface

5

A

RS-485 communication interface

6B

RS-485 communication interface

7

Channel 1 –Analog or digital signal 1

8Channel 1 +/S

Analog or digital signal 1

9Channel 2 –Analog or digital signal 2

10Channel 2 +/S

Analog or digital signal 2

11Channel 3 –Analog or digital signal 3

12Channel 3 +/SAnalog or digital signal 3

13Channel 4 –Analog or digital signal 414

Channel 4 +/S

Analog or digital signal 485 to 253 VAC
20 to 60 VDC or 20 to 30 VAC, 50/60 Hz

1215164
56FXZ520 Analog

7891011121314

Terminal assignment

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5Fieldgate Input Module FXZ520

Operability
Display elementsON

FXZ5202

1 2 3 4

15433

X1 X2

2CH3 CH4- + - +11 12 13 14
CH1 CH2- + - +7 8 9 101

1 2ADDRESS
RS485
1...73 4RS-485
A B
4 5 6
L1/L+ N/L1 2 15 16

Operating elements

No. Element

Significance

1Green LED

Permanently lit: correct voltage supply present
Blinks: communicating with Fieldgate FXA520

2Red LED

Permanently lit: Fault

3

Yellow LED

Permanently lit: Normal operation

4

Yellow LED

Not used

No. Element

Significance5

Setting of the RS-485 address range

DIP switch
Switch settings

1Address range CH1 - CH4

Display in Fieldgate
Web server

62

4–7

38 – 11412 – 15516 – 19620 – 23

724 – 2728 – 31

The input signals of the Fieldgate Input Module FXZ520 are displayed in the Overview page of the Fieldgate
Web server. Measuring range, limit values etc. can be assigned using various menus.

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Fieldgate Input Module FXZ520

Configuration inFieldgate Web server

Fieldgate FXA520 Version 1.04.xx or greater is required for the configuration of Fieldgate Input ModuleFXZ520. The input signals are configured in the Fieldgate Web server:• Switch to Administration Mode=>Settings=>Input• FXZ520 Inputs=>Analog In-XY or Digital In-XX,
where X = Settiing of address switch 1...7 and Y = channel number 1...4Analog input setupParameter

DescriptionTag

Enter the Device Tag that is to appear in the overview page

EnabledCheck this box if this input is to appear on the overview page

Scaling UnitEnter the HART unit code for the scaling unit
– HART Unit Code reveals a list of units and codes

Scaling Range

Enter the range end values in engineering units corresponding to the 4 mA and 20 mA signal

Units After
Linearization

Enter the engineering units in plain text to be used after linearization

Linearization Table Enter a linearization table with maximum 16 value pairs in the form x;yThe linearized output value is shown as a secondary value for the device in the Overview page.
SendPress to register your changes in the Fieldgate.

ResetPress to discard any changes made since the previous send.

Digital input setup

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Parameter

Description

Tag

Enter the Device Tag that is to appear in the overview page

EnabledCheck this box if this input is to appear on the overview page

Impulse Counter

Check this box if the input is to act as an impulse counter

Scaling UnitEnter the HART unit code for the scaling unit
– Press HART Unit Code to reveal a list of units and codes

Counts per UnitEnter the number of counts that correspond to 1 scaling unit

Downcount

Check this box if the counter is to count downwards

Start ValueEnter the value in scaling units from which the downcount is started

Start Time

Read-only time stamp for start of count (with Send pressed)

Restart with Start
Value on Send

Check this box then press Send to restart the counter– The count starts at 0 or the start value, depending upon configuration

Send

Press to register your changes in the Fieldgate.

ResetPress to discard any changes made since the previous send.

7Fieldgate Input Module FXZ520

Ordering Information
Product structure

FXZ520 Fieldgate Input ModuleCertificate
A without
F CSA General Purpose, CSA C US
Power SupplyAE

85 to 253 VAC, 50/60 Hz
20 to 30 VAC, 20 to 60 VDC
Input Signal
A 4x 4...20 mA
D 4x digital

FXZ520-Certificates and Approvals
Certificates

CE certificate

EN 60529: Degrees of protection provided by enclosures (IP Code)EN 61010: Safety requirements for electrical equipment for measurement,control, and laboratory use
EN 61326: Electromagnetic compatibility

Documentation
Brochures• SupplyCare Inventory Control
Field of Activity
FA003V/00/en• Fieldgate Solutions
Innovation brochureIN005F/00/en

Operating Instructions• Fieldgate Input Module FXZ520
Compact Instructions
KA272F/00/a6• Fieldgate FXA520
Operating Instructions
BA00051S/00/en

International Headquarters
Endress+Hauser
GmbH+Co. KG
Instruments International
Colmarer Str. 679576 Weil am Rhein
Deutschland
Tel. +49 76 21 9 75 02
Fax +49 76 21 9 75 34 5
www.endress.com
info@ii.endress.com

TI00023S/00/en/13.14 FXZ520
71257042

71257042