Endress+Hauser Micropilot FMR53 Manual

Level measurement in liquids
Application
• Continuous, non-contact level measurement of liquids, pastes and slurries
• Rod antenna (FMR53); horn or planar antenna (FMR54)
• Maximum measuring range: 20 m (66 ft);
for FMR54 with planar antenna in stilling well: 38 m (125 ft)
• Process temperature: –196 to +400 °C (–321 to +752 °F)
• Process pressure: –1 to +160 bar (–14.5 to +2 320 psi)
• Accuracy: ± 6 mm
• International explosion protection certificates; WHG; marine approvals
• Linearity protocol (3-point, 5-point)
Your benefits
• Reliable measurement even for changing product and process conditions
• HistoROM data management for easy commissioning, maintenance and
diagnostics
• Highest reliability due to Multi-Echo Tracking
• SIL2 according to IEC 61508, SIL3 in case of homogeneous or heterogeneous
redundancy
• Seamless integration into control or asset management systems
• Intuitive user interface in national languages
•Bluetooth® wireless technology for commissioning, operation and maintenance via
free iOS / Android app SmartBlue
• Easy proof test for SIL and WHG
• Heartbeat Technology™
Products Solutions Services
Technical Information
Micropilot FMR53, FMR54
Free space radar
TI01041F/00/EN/10.20
71486057
2020-07-31

Micropilot FMR53, FMR54
2 Endress+Hauser
Table of contents
Important document information ............... 4
Document function ............................ 4
Symbols used ................................ 4
Terms and abbreviations ..................... 5
Registered trademarks ....................... 6
Function and system design ................... 7
Measuring principle ............................ 7
Input ..................................... 9
Measured variable ............................. 9
Measuring range .............................. 9
Operating frequency .......................... 12
Transmission power ........................... 12
Output .................................. 13
Output signal ............................... 13
Signal on alarm .............................. 14
Linearization ............................... 14
Galvanic isolation ............................ 14
Protocol-specific data .......................... 14
Power supply ............................. 19
Terminal assignment .......................... 19
Device plugs ................................ 27
Supply voltage .............................. 28
Power consumption ........................... 30
Current consumption .......................... 30
Power supply failure .......................... 31
Potential equalization ......................... 31
Terminals ................................. 31
Cable entries ............................... 31
Cable specification ............................ 31
Overvoltage protection ......................... 32
Performance characteristics .................. 33
Reference operating conditions ................... 33
Maximum measured error ....................... 33
Measured value resolution ...................... 33
Response time .............................. 33
Influence of ambient temperature ................. 33
Influence of gas phase ......................... 33
Gas phase compensation with external pressure sensor
(PROFIBUS PA, FOUNDATION Fieldbus) ............. 34
Installation ............................... 35
Installation conditions ......................... 35
Process conditions ............................ 38
Mounting cladded flanges ....................... 39
Free-space installation in vessel ................... 40
Installation in stilling well ....................... 43
Installation in the bypass ....................... 46
Container with heat insulation .................... 48
Environment .............................. 49
Temperature range ........................... 49
Temperature limit ............................ 49
Storage temperature .......................... 58
Climate class ............................... 58
Altitude according to IEC61010-1 Ed.3 .............. 59
Degree of protection .......................... 59
Vibration resistance ........................... 59
Cleaning the antenna .......................... 59
Electromagnetic compatibility (EMC) ............... 59
Process .................................. 60
Process temperature, process pressure ............... 60
Mechanical construction .................... 63
Dimensions ................................ 63
Weight ................................... 68
Materials: Housing GT18 (stainless steel, corrosion-
resistant) .................................. 69
Materials: GT19 housing (plastic) .................. 70
Materials: GT20 housing (die-cast aluminum, powder-
coated) ................................... 71
Materials: antenna and process connection ........... 72
Materials: Weather protection cover ................ 75
Operability ............................... 76
Operating concept ............................ 76
Local operation .............................. 77
Operation with remote display and operating module
FHX50 ................................... 77
Operation via Bluetooth® wireless technology .......... 78
Remote operation ............................ 79
Integration in tank gauging system ................. 82
SupplyCare inventory management software .......... 83
Certificates and approvals ................... 86
CE mark ................................... 86
RoHS ..................................... 86
RCM-Tick marking ............................ 86
Ex approval ................................ 86
Dual seal according to ANSI/ISA 12.27.01 ............ 86
Functional safety ............................. 86
WHG ..................................... 86
Hygienic compatibility ......................... 86
NACE MR 0175 / ISO 15156 ..................... 86
NACE MR 0103 ............................. 86
Pressure equipment with allowable pressure
≤ 200 bar (2 900 psi) .......................... 87
Marine approval ............................. 87
FCC ...................................... 87
Industry Canada ............................. 87
Japanese radio approval ........................ 87
CRN approval ............................... 87
Test, certificate .............................. 89
Hard-copy product documentation ................. 89
Other standards and guidelines ................... 90

Micropilot FMR53, FMR54
Endress+Hauser 3
Ordering information ....................... 91
Ordering information .......................... 91
3-point linearity protocol ....................... 92
5-point linearity protocol ....................... 93
Customer-specific configuration ................... 94
Tagging (TAG) .............................. 94
Services ................................... 94
Application packages ....................... 95
Heartbeat Diagnostics ......................... 95
Heartbeat Verification ......................... 96
Heartbeat Monitoring ......................... 97
Accessories ............................... 98
Device-specific accessories ...................... 98
Communication-specific accessories ............... 103
Service-specific accessories ..................... 104
System components .......................... 104
Supplementary documentation .............. 104
Brief Operating Instructions (KA) ................. 104
Operating Instructions (BA) ..................... 104
Safety Instructions (XA) ....................... 104

Micropilot FMR53, FMR54
4 Endress+Hauser
Important document information
Document function These Operating Instructions provide all of the information that is required in various phases of the
life cycle of the device including:
• Product identification
• Incoming acceptance
• Storage
• Installation
• Connection
• Operation
• Commissioning
• Troubleshooting
• Maintenance
• Disposal
Symbols used Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or
fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or
fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or
medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in personal
injury.
Electrical symbols
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other connections.
The ground terminals are located on the inside and outside of the device.
• Interior ground terminal; protective earth is connected to the mains supply.
• Exterior ground terminal; device is connected to the plant grounding system.
Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to graphic

Micropilot FMR53, FMR54
Endress+Hauser 5
Notice or individual step to be observed
1.
,
2.
,
3.
Series of steps
Result of a step
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
-
Hazardous area
Indicates the hazardous area
.
Safe area (non-hazardous area)
Indicates the non-hazardous area
Terms and abbreviations
BA
Document type "Operating Instructions"
KA
Document type "Brief Operating Instructions"
SD
Document type "Special Documentation"
XA
Document type "Safety Instructions"
PN
Nominal pressure
FieldCare
Scalable software tool for device configuration and integrated plant asset management solutions
DeviceCare
Universal configuration software for Endress+Hauser HART, PROFIBUS, FOUNDATION Fieldbus and
Ethernet field devices
DTM
Device Type Manager
DD
Device Description for HART communication protocol
εr (Dk value)
Relative dielectric constant
PLC
Programmable logic controller (PLC)
CDI
Common Data Interface
Operating tool
The term "operating tool" is used in place of the following operating software:
• FieldCare / DeviceCare, for operation via HART communication and PC
• SmartBlue (app), for operation using an Android or iOS smartphone or tablet
MBP
Manchester Bus Powered
PDU
Protocol Data Unit

Micropilot FMR53, FMR54
6 Endress+Hauser
Registered trademarks
HART®
Registered trademark of the FieldComm Group, Austin, Texas, USA
PROFIBUS®
Registered trademark of the PROFIBUS User Organization, Karlsruhe, Germany
FOUNDATION™ Fieldbus
Registration-pending trademark of the FieldComm Group, Austin, Texas, USA
Modbus®
Registered trademark of SCHNEIDER AUTOMATION, INC.
Bluetooth®
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and
any use of such marks by Endress+Hauser is under license. Other trademarks and trade names are
those of their respective owners.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S.
and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
KALREZ®, VITON®
Registered trademarks of DuPont Performance Elastomers L.L.C., Wilmington, DE USA
TRI-CLAMP®
Registered trademark of Ladish & Co., Inc., Kenosha, USA

Micropilot FMR53, FMR54
Endress+Hauser 7
Function and system design
Measuring principle The Micropilot is a "downward-looking" measuring system, operating based on the time-of-flight
method (ToF). It measures the distance from the reference point R (process connection of the
measuring device) to the product surface. Radar pulses are emitted by an antenna, reflected off the
product surface and received again by the radar system.
F
L
D
E
R
0%
100%
A0017871
 1 Setup parameters of the Micropilot
R Reference point of the measurement (lower edge of the flange or threaded connection)
E Empty calibration ( = zero)
F Full calibration (= span)
D Measured distance
L Level (L = E - D)
Input
The reflected radar impulses are received by the antenna and transmitted into the electronics. A
microprocessor evaluates the signals and identifies the level echo caused by the reflection of the
radar pulses at the product surface. The unambiguous signal identification is accomplished by the
PulseMaster® eXact software together with the Multi-echo tracking algorithms, based on over 30
years of experience with time-of-flight technology.
The distance D to the product surface is proportional to the time of flight t of the impulse:
D = c · t/2,
with c being the speed of light.
Based on the known empty distance E, the level L is calculated:
L = E – D
The Micropilot is equipped with functions to suppress interference echoes. The user can activate
these functions. Together with the multi-echo tracking algorithms they ensure that interference
echoes, e.g. from from internal fixtures and struts, are not interpreted as level echoes.

Micropilot FMR53, FMR54
8 Endress+Hauser
Output
The Micropilot is configured by entering the empty distance "E" (= zero), the full distance "F" (= span)
and application parameters which automatically adapt the device to the process conditions. For
models with a current output, the factory adjustment for zero point "E" and span "F" is 4 mA and 20
mA. For digital outputs and the display module, the factory adjustment for zero point "E" and span "F"
is 0 % and 100 %.
A linearization function with max. 32 points, based on a table entered either manually or semi-
automatically, can be activated locally or remotely. This function provides a measurement in
engineering units and a linear output signal for spherical and horizontal cylindrical vessels and
vessels with a conical outlet.
Product life cycle
Planning
• Universal measuring principle
• Measurement is independent of product properties
• Hardware and software developed according to SIL IEC 61508
Procurement
• As the global market leader in level measurement, Endress+Hauser guarantees the security of
your investment
• Worldwide support and service
Installation
• No special tools are required
• Protection against reverse polarity
• Modern, detachable terminals
• Main electronics protected by a separate connection compartment
Commissioning
• Fast, menu-guided commissioning in only a few steps onsite or from the control room
• Plain text display in local language reduces the risk of error or confusion
• Direct local access to all parameters
• Printed Brief Operating Instructions in the device onsite
Operation
• Multi-echo tracking: Reliable measurement thanks to self-learning echo search algorithms taking
into account the short-term and long-term history and plausibility of the detected signals to
suppress interference echoes.
• In accordance with NAMUR NE107
Maintenance
• HistoROM: Data backup for device settings and measured values
• Exact device and process diagnostics to assist fast decisions with clear information regarding
remedial action
• Intuitive, menu-guided operating concept in local language saves costs for training, maintenance
and operation
• Cover of the electronics compartment can also be opened in the hazardous area
Retirement
• Order code translation for subsequent models
• RoHS-compliant (Restriction of certain Hazardous Substances), unleaded soldering of electronic
components
• Environmentally friendly recycling approach

Micropilot FMR53, FMR54
Endress+Hauser 9
Input
Measured variable The measured variable is the distance between the reference point and the product surface.
The level is calculated based on "E", the empty distance entered.
Optionally, the level can be converted to other variables (volume, mass) by linearization (32 points).
Measuring range Maximum measuring range
FMR53 Maximum measuring range
For all versions 20 m (66 ft)
FMR54 Maximum measuring range
Horn antenna 20 m (66 ft)
Planar antenna in stilling well 38 m (125 ft)
Usable measuring range
The usable measuring range depends on the antenna size, the medium's reflective properties, the
installation position and any possible interference reflections.
The media groups and the possible measuring range are described as a function of the application
and media group in the following section. If the dielectric constant of the medium is not known, to
ensure a reliable measurement assume the medium belongs to group B.
Media groups
Media group εrExample
A1.4 to 1.9 Non-conductive liquids, e.g. liquid gas 1)
B1.9 to 4 Non-conductive liquids, e.g. gasoline, oil, toluene, etc.
C4 to 10 E.g. concentrated acid, organic solvents, ester, aniline, alcohol, acetone.
D> 10 Conductive liquids, aqueous solutions, diluted acids and bases
1) Treat ammonia gas (NH3) like "group A" media.
For dielectric constants (DC values) of many media commonly used in various industries refer
to:
• the Endress+Hauser DC manual (CP01076F)
• the Endress+Hauser "DC Values App" (available for Android and iOS)

Micropilot FMR53, FMR54
10 Endress+Hauser
Device Storage vessel Buffer vessel
A0018833
Calm surface (e.g. bottom filling, filling via immersion tube or rare
filling from above)
A0018835
Moving surface (e.g. continuous free filling from above, mixing
jets)
Antenna type/size Antenna type/size
FMR53 Rod 390 mm (15 in)
Rod 540 mm (21 in)
- Rod 390 mm (15 in)
Rod 540 mm (21 in)
-
FMR54 1) Horn 150 mm (6 in) Horn 200 mm (8 in)
Horn 250 mm (10 in)
Horn 150 mm (6 in) Horn 200 mm (8 in)
Horn 250 mm (10 in)
BB
10
(33)
20
(66)
15
(49)
CC DD
A0018844
BB
20
(66)
20
(66)
15
(49)
CC DD
A0018845
BB
10
(33)
7.5
(25)
5
(16)
CC DD
A0018846
BB
12.5
(41)
7.5
(25)
10
(33)
CC DD
A0018847
Measuring range [m (ft)]
1) FMR54 with antennas BC (80mm/3"() and BD (100mm/4") are not suitable for free-space installation in the tank. They should only be used in
bypasses or stilling wells.

Micropilot FMR53, FMR54
Endress+Hauser 11
Device Vessel with agitator Stilling well Bypass
A0018837
Turbulent surface (e.g. filling from above, agitators,
baffles etc.)
A0018839
A0018840
Antenna type/size Antenna type/size
FMR53 Rod 390 mm (15 in)
Rod 540 mm (21 in)
- - - -
FMR54 Horn 150 mm (6 in) Horn 200 mm (8 in)
Horn 250 mm (10 in)
Horn
80 to 250 mm
(3 to 10 in)
Planar
150 to 300 mm
(6 to 12 in)
Horn
80 to 250 mm
(3 to 10 in)
BB
8
(26)
4
(13) 6
(20)
CC DD
A0018848
BB
10
(33)
6
(20) 8
(26)
CC DD
A0018850
20
(66)
A, B, C, D
A0018851
38
(125)
A, B, C, D
A0018854
20
(66)
C, D
A0018852
Measuring range [m (ft)]

Micropilot FMR53, FMR54
12 Endress+Hauser
Operating frequency C-band (~ 6 GHz)
As the transmission pulses are statistically coded, up to 8 Micropilot transmitters can be installed in
the same tank.
Transmission power Distance Mean power density in the direction of the beam
1 m (3.3 ft) < 12 nW/cm2
5 m (16 ft) < 0.4 nW/cm2

Micropilot FMR53, FMR54
Endress+Hauser 13
Output
Output signal HART
• Signal coding:
FSK ±0.5 mA over current signal
• Data transmission rate:
1 200 Bit/s
• Galvanic isolation:
Yes
Bluetooth® wireless technology
• Device version:
Order code 610 "Accessory mounted", option NF "Bluetooth"
• Operation / configuration:
Via the SmartBlue app
• Range under reference conditions:
> 10 m (33 ft)
• Encryption:
Encrypted communication and password encryption prevent incorrect operation by unauthorized
persons
PROFIBUS PA
• Signal coding:
Manchester Bus Powered (MBP)
• Data transmission rate:
31.25 kBit/s, Voltage mode
• Galvanic isolation:
Yes
FOUNDATION Fieldbus
• Signal coding:
Manchester Bus Powered (MBP)
• Data transmission rate:
31.25 kBit/s, Voltage mode
• Galvanic isolation:
Yes
Switch output
For HART devices, the switch output is available as an option.
• Function:
Open collector switch output
• Switching behavior:
Binary (conductive or non-conductive), switches when the programmable switch-on point/switch-
off point is reached
• Failure mode:
Non-conductive
• Electrical connection data:
U = 16 to 35 VDC, I = 0 to 40 mA
• Internal resistor:
RI < 880 Ω
The voltage drop at this internal resistor must be taken into account when planning the
configuration. For example, the resulting voltage at a connected relay must be sufficient to switch
the relay.
• Insulation voltages:
Floating, insulation voltage 1 350 VDC in relation to power supply and 500 VAC ground
• Switch point:
User-programmable, separate for switch-on point and switch-off point
• Switching delay:
User-programmable in the 0 to 100 s range, separate for switch-on point and switch-off point

Micropilot FMR53, FMR54
14 Endress+Hauser
• Scan rate:
Corresponds to the measuring cycle
• Signal source / device variables:
• Level linearized
• Distance
• Terminal voltage
• Electronic temperature
• Relative echo amplitude
• Diagnostic values, advanced diagnostic blocks
• Only for active interface measurement
• Number of switch cycles:
Unlimited
Signal on alarm Depending on the interface, failure information is displayed as follows:
• Current output
• Choice of failure mode (in accordance with NAMUR Recommendation NE 43):
Minimum alarm: 3.6 mA
Maximum alarm (= factory setting): 22 mA
• Failure mode with user-configurable value: 3.59 to 22.5 mA
• Local display
• Status signal (as per NAMUR Recommendation NE 107)
• Plain text display
• Operating tool via digital communication (HART, PROFIBUS PA, FOUNDATION Fieldbus) or
service interface (CDI)
• Status signal (as per NAMUR Recommendation NE 107)
• Plain text display
Linearization The device's linearization function allows the user to convert the measured value to any length or
volume units. Linearization tables for calculating the volume in cylindrical vessels are
preprogrammed into the device. Other linearization tables of up to 32 value pairs can be entered
manually or semi-automatically.
Galvanic isolation All circuits for the outputs are galvanically isolated from each other.
Protocol-specific data HART
Manufacturer ID 17 (0x11)
Device type ID 0x1128
HART specification 7.0
Device description files (DTM, DD) Information and files under:
•www.endress.com
•www.fieldcommgroup.org
HART load min. 250 Ω

Micropilot FMR53, FMR54
Endress+Hauser 15
HART device variables The measured values can be freely assigned to the device variables.
Measured values for PV (primary variable)
• Level linearized
• Distance
• Electronic temperature
• Relative echo amplitude
• Area of incoupling
• Analog output adv. diagnostics 1
• Analog output adv. diagnostics 2
Measured values for SV, TV, QV (second, third and fourth variable)
• Level linearized
• Distance
• Electronic temperature
• Terminal voltage
• Relative echo amplitude
• Absolute echo amplitude
• Area of incoupling
• Analog output adv. diagnostics 1
• Analog output adv. diagnostics 2
Supported functions • Burst mode
• Additional transmitter status
Wireless HART data
Minimum starting voltage 17.5 V
Start-up current 4 mA
Starting time 80 s
Minimum operating voltage 17.5 V
Multidrop current 4.0 mA
Time for connection setup 30 s
PROFIBUS PA
Manufacturer ID 17 (0x11)
Ident number 0x1559
Profile version 3.02
GSD file Information and files under:
•www.endress.com
•www.profibus.org
GSD file version
Output values Analog Input:
• Level linearized
• Distance
• Terminal voltage
• Electronic temperature
• Absolute echo amplitude
• Relative echo amplitude
• Analog output adv. diagnostics 1
• Analog output adv. diagnostics 2
Digital Input:
• Digital output AD 1
• Digital output AD 2
• Switch output

Micropilot FMR53, FMR54
16 Endress+Hauser
Input values Analog Output:
• Analog value from PLC (for sensor block, external pressure to compensate for gas
phase effects)
• Analog value from PLC for transmission to display
Digital Output:
• Extended Diagnostic Block
• Level Limiter
• Sensor Block Measurement On
• Sensor Block Save History On
• Status output
Supported functions • Identification & Maintenance
Simplest device identification on the part of the control system and nameplate
• Automatic Ident Number Adoption
GSD compatibility mode with predecessor Micropilot M FMR2xx
• Physical Layer Diagnostics
Installation check of the PROFIBUS segment and the Micropilot FMR5x using terminal
voltage and message monitoring
• PROFIBUS upload/download
Reading and writing parameters is up to ten times faster with PROFIBUS upload/
download
• Condensed status
Simplest and self-explanatory diagnostic information by categorizing diagnostic
messages that occur
FOUNDATION Fieldbus
Manufacturer ID 0x452B48
Device type 0x1028
Device revision 0x01
DD revision Information and files under:
•www.endress.com
•www.fieldcommgroup.org
CFF revision
Device Tester Version (ITK version) 6.0.1
ITK Test Campaign Number IT085300
Link Master capability (LAS) Yes
Choice of "Link Master" and "Basic Device" Yes; Factory setting: Basic Device
Node address Factory setting: 247 (0xF7)
Supported functions The following methods are supported:
• Restart
• ENP Restart
• Setup
• Linearization
• Self Check
Virtual Communication Relationships (VCRs)
Number of VCRs 44
Number of link objects in VFD 50
Permanent entries 1
Client VCRs 0
Server VCRs 10
Source VCRs 43
Sink VCRs 0
Subscriber VCRs 43
Publisher VCRs 43
Device Link Capabilities

Micropilot FMR53, FMR54
Endress+Hauser 17
Slot time 4
Min. delay between PDU 8
Max. response delay 20
Transducer Blocks
Block Contents Output values
Setup Transducer Block Contains all the parameters for standard
commissioning
• Level or volume (channel
1)
(depending on the block
configuration)
• Distance (channel 2)
Advanced Setup
Transducer Block
Contains all the parameters for more accurate
measurement configuration
No output values
Display Transducer Block Contains parameters to configure the onsite display No output values
Diagnostic Transducer
Block
Contains diagnostic information No output values
Advanced Diagnostic
Transducer Block
Contains parameters for advanced diagnostics No output values
Expert Configuration
Transducer Block
Contains parameters that require the user to have
in-depth knowledge of the operation of the device in
order to configure the parameters appropriately
No output values
Expert Information
Transducer Block
Contains parameters that provide information about
the state of the device
No output values
Service Sensor
Transducer Block
Contains parameters that can only be accessed by
Endress+Hauser Service
No output values
Service Information
Transducer Block
Contains parameters that provide Endress+Hauser
Service with information about the state of the
device
No output values
Data Transfer
Transducer Block
Contains parameters for backing up the device
configuration in the display module and for writing
the saved configuration to the device. Access to
these parameters is reserved for Endress+Hauser
Service.
No output values
Function blocks
Block Contents Number of
permanent
blocks
Number of
instantiatable
blocks
Execution
time
Functionality
Resource Block The Resource Block contains all
the data that uniquely identify
the device. It is an electronic
version of a nameplate of the
device.
1 0 - Enhanced
Analog Input
Block
The AI Block receives the
measuring data from the Sensor
Block (selectable via a channel
number), and makes the data
available to other blocks at its
output.
2 3 25 ms Enhanced
Discrete Input
Block
The Discrete Input Block receives
a discrete value (e.g. indicator
that measuring range has been
exceeded) and makes the value
available for other blocks at the
output.
1 2 20 ms Standard

Micropilot FMR53, FMR54
18 Endress+Hauser
Block Contents Number of
permanent
blocks
Number of
instantiatable
blocks
Execution
time
Functionality
Multiple
Analog Output
Block
The Multiple Analog Output
Block is used to transmit analog
values from the bus to the device.
1 0 20 ms Standard
Multiple
Discrete
Output Block
The Multiple Discrete Output
Block is used to transmit discrete
values from the bus to the device.
1 0 20 ms Standard
PID Block The PID Block is used as a
proportional-integral-derivative
controller and can be used
universally for closed-loop-
control in the field. It enables
cascade mode and feedforward
control.
1 1 25 ms Standard
Arithmetic
Block
The Arithmetic Block is designed
to permit simple use of popular
measurement math functions.
The user does not have to know
how to write equations. The
math algorithm is selected by
name, chosen by the user for the
function to be performed.
1 1 25 ms Standard
Signal
Characterizer
Block
The Signal Characterizer Block
has two sections, each with an
output value that is a non-linear
function of the input value. The
non-linear function is generated
by a single look-up table with 21
arbitrary x-y pairs.
1 1 25 ms Standard
Input Selector
Block
The Input Selector Block
facilitates the selection of up to
four inputs and generates an
output value based on the
configured action. This block
normally receives its inputs from
AI Blocks. The block enables the
selection of maximum, minimum,
average and ‘first good’ values.
1 1 25 ms Standard
Integrator
Block
The Integrator Block integrates a
variable as a function of the time
or accumulates the counts from a
Pulse Input Block. The Block can
be used as a totalizer that
totalizes until a reset, or as a
batch totalizer whereby the
integrated value is compared
against a target value generated
before or during the control
routine and generates a binary
signal when the target value is
reached.
1 1 25 ms Standard
Analog Alarm
Block
1 1 25 ms Standard
Up to 20 blocks can be instantiated in the device altogether, including the blocks already
instantiated.

Micropilot FMR53, FMR54
Endress+Hauser 19
Power supply
Terminal assignment
Terminal assignment 2-wire: 4-20 mA HART
1
+
2
-
A
1
+
2
-
B
1
2
3
A0036498
 2 Terminal assignment 2-wire: 4-20 mA HART
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection 4-20 mA HART passive: terminals 1 and 2, without integrated overvoltage protection
2 Connection 4-20 mA HART passive: terminals 1 and 2, with integrated overvoltage protection
3 Terminal for cable screen
Block diagram 2-wire: 4-20 mA HART
5
4
1
2
3
++
--
Y
I
6
1
2
A0036499
 3 Block diagram 2-wire: 4-20 mA HART
1 Active barrier with power supply (e.g. RN221N); observe terminal voltage
2 HART communication resistor (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display device; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device

Micropilot FMR53, FMR54
20 Endress+Hauser
Terminal assignment 2-wire: 4-20 mA HART, switch output
1
3
+
+
2
4
-
-
A
1
3
+
+
2
4
-
-
B
1
4
5
2
3
A0036500
 4 Terminal assignment 2-wire: 4-20 mA HART, switch output
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection 4-20 mA HART passive: terminals 1 and 2, without integrated overvoltage protection
2 Connection switch output (Open Collector): terminals 3 and 4, without integrated overvoltage protection
3 Connection switch output (Open Collector): terminals 3 and 4, with integrated overvoltage protection
4 Connection 4-20 mA HART passive: terminals 1 and 2, with integrated overvoltage protection
5 Terminal for cable screen
Block diagram 2-wire: 4-20 mA HART, switch output
5
4
1
2
3
+
+
+
-
-
-
Y
I
6
7
1
2
3
4
A0036501
 5 Block diagram 2-wire: 4-20 mA HART, switch output
1 Active barrier with power supply (e.g. RN221N); observe terminal voltage
2 HART communication resistor (≥ 250 Ω); observe maximum load
3 Connection for Commubox FXA195 or FieldXpert SFX350/SFX370 (via VIATOR Bluetooth modem)
4 Analog display device; observe maximum load
5 Cable screen; observe cable specification
6 Measuring device
7 Switch output (Open Collector)