HERMOS LFM LP User Manual

Customer manual

LFM LP Reader Rev.1.2

Protocol description ASCII, SECS/HSMS
Customer manual
Version 1.2

LFM LP Reader 15.01.2019

Page 2 of 119

0. Table of contents

0. Table of contents 2

1. Introduction 5

2. Version history 7

3. Used abbreviations and designations 7

4. General instructions 8

5. Safety instructions and warnings 9

5.5.1 Regulations and certifications 14

6. Functional description 15

6.2.4 Test module 16

6.3.1 Top view 17

6.4.1 Power supply and current input 20

6.4.2 Device labels 21

6.4.3 Device Label FCC ID 2AP5OLFM-LP 21

7. Installation 22

7.5.1 Positioning the antenna 25

7.5.2 Antennas dimensions 26

7.6.1 Tuning push button 27

7.6.2 Test push button 28

8. Commissioning 29

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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9. Operating 34

9.2.1 General 34

9.2.2 Automatic protocol detection 34

9.2.3 Triggered protocol change 34

10. ASCI-I1 Communication protocol 36

10.4.1 X – Read data 44

10.4.2 R – Automatic read 45

10.4.3 W – Write data 46

10.4.4 G Query parameter 46

10.4.5 F – Query parameter 47

10.4.6 P – Set parameter 48

10.4.7 N – Reset 49

10.4.8 e – Error message 50

10.4.9 H – Heartbeat 50

10.4.10 V – Query software version 51

10.4.11 L – Lock data area 52

10.4.12 I – Adjust RF module 53

10.4.13 J – RF module Queries the vote 54

10.4.14 A – Sensor event object removed 55

10.4.15 B – Sensor event object detected 56

10.4.16 O – Set output 57

10.4.17 Q – Querying the status of the inputs and outputs 58

10.8.1 Reader operation mode and sensor triggered reading 66

11. SECS / HSMS Communications protocol 71

11.3.1 Stream 1 (system state) 86

11.3.2 Stream 2 (system control) 87

11.3.3 Stream 3 (Material-state) 89

11.3.4 Stream 5 (Exception handling) 91

11.3.5 Stream 9 (system error) 91

11.3.6 Stream 18 (control and data transfer) 93

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
Customer manual
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Page 4 of 119

12. Service and Troubleshooting 115

13. Disassembly and storage 119

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

These operating instructions correspond with the "Radio and Telecommunications Terminal.

Equipment Act and Directive 2014/53/EU (RED) "

These operating instructions are intended for the operator who must pass these on to the

personnel responsible for installation, connection, use, and repairs of the machine.

The operator must ensure that the information contained in these operating instructions and in

the accompanying documents has been read and understood.

The operating instructions must be kept at a known place that is easy to reach, and they must

be consulted if there is the slightest doubt.

The manufacturer assumes no responsibility for damage to persons, animals, or objects or to
the unit itself arising from the improper use or the disregard or insufficient consideration to the
safety criteria contained in these operating instructions or based on modifications of the unit or

the use of unsuitable replacement parts.

The copyright for the operating instructions lies solely with

HERMOS AG

Track & Trace - RFID Division

Gartenstr.19

95490 Mistelgau, Germany

or its legal successor.

Reproduction or circulation of this document to third parties only by express written permission

of copyright holder. This also applies if only excerpts of the document are copied or circulated.

These same conditions apply to the disclosure of the document in digital format.

As of: Juli – 2017

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1. Introduction

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

WARNING

Danger of injury due to unauthorised modifications

There are risks from unauthorised modifications on the device.
Only original spare parts from the manufacturer must be used. No modification,

attachment or conversion may be performed on the device without the permission
of HERMOS AG.

WARNING

Danger of injury and interruption of operation due to improper use

There are risks through the improper use of the device.
The device must only be used according to its intended use.

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Using the device

The device is exclusively used to read and write passive LF transponders.
Any other use of the machine or any use beyond its intended purpose is considered non-intended and

thus improper.
In this case, the device safety and the device protection provided may be compromised. HERMOS AG

is not liable for damages resulting from such use.
The device was developed for the use in an industrial environment as a built-in device in other systems.

It was not developed as a stand-alone or mobile device in a non-industrial environment, such as
domestic, vehicle or open air use.

Intended use also includes the following:

 Following all the operating instructions
 Following all the safety instructions

Improper use, which can endanger the unit, the user and third parties, include:

 The use of the device contrary to its intended use
 Changes to the device as well as attachments and conversions
 Operating the unit when there are obvious problems

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Version

Date

Author

Amendments

1.1

26.09.2018

HERMOS AG RK

Initial version of customer
documentation

1.2

16.11.2018

HERMOS AG RK

FCC, additional Parameters

RFID

Radio Frequency Identification

LF

Low Frequency 134,2 kHz

SEMI

Semiconductor Equipment and Materials

SECS

SEMI Equipment Communications Standard

HSMS

High-Speed SECS Message Service

PoE

Power over Ethernet

DHCP

Dynamic Host Configuration Protocol

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2. Version history

3. Used abbreviations and designations

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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Page 8 of 119

4. General instructions

All previous versions of this document lose their validity with the issue of this version.

We compiled the information in this document according to the best of our ability. HERMOS AG does
not guarantee the accuracy and completeness of the information provided in this document and is also
not liable for consequential damages based on faulty or incomplete information.

Objective of the product manual

The product manual serves as support and contains all the necessary information that must be followed
for general safety, transport, installation and operation.

The product manual with all safety instructions (as well as all additional documents) must be:

 Followed, read and understood by all persons working with the unit (especially

knowledge of the safety instructions)

 Easily available at all times to all persons
 Consulted if even the slightest doubt arises (safety)

Objectives:

 Prevent accidents
 Increase the service life and reliability of the unit
 Reduce the costs of production downtime

Warranty and liability

The "General Terms and Conditions of Sale and Delivery" of HERMOS AG shall apply.
The warranty period is 24 months beginning with the delivery of the device, which is verified by the

invoice or other documents.
The warranty includes repairs of all damages to the unit that occur during the warranty period, and

were clearly caused by material or manufacturing defects.
Warranty and liability claims in the event of personal injury or property damage are excluded if they

arise from one or more of the following causes:

 Improper use of the unit
 Disregarding the information in the operating instructions
 Unauthorised structural modifications of the unit
 Insufficient maintenance and repairs
 Disaster events due to impact with foreign objects or force majeure

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

DANGER

Risk of death, injury and property damage.

There is a risk of danger due to disregard of the product manual and the
safety information contained therein.
Read the product manual carefully before putting the unit into operation for
the first time. Fulfil all required safety conditions.

DANGER

Risk of injury due to disregarding the safety symbols.

Risks exist when disregarding warnings in the operating instructions.
Follow all warnings.

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5. Safety instructions and warnings

Scope and symbols

Follow the general safety instructions as well as special safety instructions included in the chapters.
The unit was built according to state-of -the-art technology and recognised safety regulations. In order

to prevent danger to life and limb of the user, third parties, or the unit, only use the unit for its intended
purpose and in perfect condition with regard to safety.

Bodily injuries and/or property damages resulting from non-compliance with the instructions provided in
the operating instructions are the responsibility of the company operating the unit or the assigned
personnel.
Faults that may compromise safety must be eliminated immediately.

Safety symbols - according to DIN 4844-2

The following special safety symbols in accordance with DIN 4844-2 are used at the corresponding
passages in the text of this product manual and require special attention depending on the combination of
the signal word and symbol.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Observe additional information

Use safety goggles

Wear ear protection

Wear safety shoes

Important note

Warning of a hazardous area

Warning of hazardous electrical
voltage

Warning of electromagnetic
radiation

Warning of flammable substances

Warning of explosive substances

Warning of electrostatically
sensitive components

Unauthorised access is prohibited

Fire, open flame and smoking
prohibited

Switching prohibited

Prohibited

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5.2.1 Mandatory signs

5.2.2 Warning signs

5.2.3 Prohibition signs

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Dispose of packaging material
according to rules and regulations

Recycling

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5.2.4 Other signs

Obligations

5.3.1 Operator’s obligations

A safe condition and use of the unit is a requirement for a safe operation of the unit. For that reason,
the operator has the obligation to ensure that the following points are adhered to:

The unit may only be operated by trained and authorised personnel.



Prohibit unsafe or dangerous working methods! If necessary, check the conduct



and actions of its personnel!

Have personnel who must be trained, instructed or within the scope of general



training work only on the unit under the supervision of an experienced person!

Have the personnel confirm by their signature that the operating instructions have



been understood!

Precisely establish responsibilities according to the various task areas (operation,



installation)!

Operating personnel must be required to immediately report any occurring and



identifiable safety deficiencies to their superior!

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

WARNING

Risk of injury due to insufficient personnel qualifications

There are dangers to personnel and the proper operation due to
inadequately qualified personnel.
Only trained personnel may operate the unit.
New operating personnel must be instructed by the existing operating

personnel. The operator must precisely regulate the personnel’s areas of

responsibility, competence, and monitoring precisely.
The personnel for the areas of responsibility mentioned above must have the
corresponding qualification for this work (training, instruction).
If necessary, this can be done by the manufacturer on behalf of the operator.
In case of disregard, all warranty claims are void.

CAUTION

Static electricity can damage electronic components in the unit. All persons
who install or maintain the unit must be trained in ESD protection.

ESD protective measures must be applied when opening the unit.

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5.3.2 Responsibilities of operating personnel

The operating personnel are obligated to contribute to the prevention of work accidents and their
consequences by their personal conduct.

5.3.3 ESD Instructions

Disconnect the power supply prior to removing or adding components!



Observe the basic principles of ESD protection



Take the appropriate ESD precautionary measures



HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

DANGER

Danger caused by electrical current

Electrical residual energy remains in lines, equipment and devices after
shutting down the device.

Only qualified electricians may perform work on the electrical supply
system.

ATTENTION

Disconnect the unit from the power supply system if active parts of the
unit can be accessed using tools. Access is only permitted by
authorised personnel.

Regularly check the electrical equipment of the unit. Regularly check all
moving cables for damage within the scope of maintenance and repair
work.

DANGER

Dangers of fire and explosion

There is a risk of fire and explosions in the vicinity of the device.

Smoking, exposed flames and fire are strictly prohibited in the vicinity of
the unit. Do not store any flammable liquids within the hazardous area of
the device.

A fire extinguisher must be kept in the vicinity of the device.

WARNING

Warning of electromagnetic radiation

Electromagnetic radiation develops when transmitting and receiving
data.
Arrange the antenna in such a position that it is not in the vicinity or
make contact with the human body while transmitting.

The device satisfies the standard EN50364:2010 (Human Exposure).

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Residual risks

Despite all precautionary measures taken, there may still be residual risks that are not
apparent.
Adhering to the safety instructions, the intended use, and the product manual as a whole can
reduce residual risks.

Supplemental instructions

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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Read and understand all safety and operating instructions prior to installing and



operating the device.

This documentation was written for specifically trained personnel. The installation,



operation and error handling may only be carried out by specifically trained
personnel.

Keep these instructions. Keep this documentation in a location that is accessible



to all personnel involved with the installation, use, and error handling of the
device.

Follow all warnings. Follow all warnings on and in the device and in the



documentation.

Install the unit only in accordance with the manufacturer's instructions.



Use only the accessories and cables from the manufacturer.



Troubleshooting that is not described in the chapter  service and



troubleshooting may only be performed by the manufacturer.

When connecting cable connections, only pull on the plug and not on the cable.



Only use spare parts specified by the manufacturer.



The provisions of the accident-prevention regulations of the government safety organisations always
apply to all work on the unit.

Applicable, legally binding accident prevention regulations.



Applicable binding regulations at the place of use



Technical standards for safety and professional work



Existing environmental protection regulations



Other applicable regulations



5.5.1 Regulations and certifications

The electrical design and documentation satisfy the DIN / VDE, EN / IEC regulations.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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Page 15 of 119

6. Functional description

General information

LF reading devices are radio frequency identification systems that use radio transmission to read or
write data of LF transponders (134,2 kHz), which operate as tamper-proof electronic tags. The LF
reading devices communicate with common transponders according to ISO 18000-2 and ISO 11785
that are available on the market.
The data is transmitted via the existing interface with the preset transmission parameters. If several
interfaces are available and connected to the host, the transmission is always carried out on the most
recently used interface. The data is embedded in a defined communication protocol and exchanged
between the reader and host.

Basic functions - operating modes

During normal operation, the LF reading device supports various basic functions:

 Heartbeat function, software version query
 Reading data
 Writing data
 Locking data
 Setting and reading out parameters
 Setting and querying inputs and outputs

The LF devices can be set in 3 other operating modes by setting the parameters: Polling operation
(optional), sensor-triggered automatic reading and test mode.

6.2.1 Normal operation

During normal operation, the LF reading device is immediately ready for operation after a reset. It does not
perform any automatic actions in this mode (standby). During normal operation, actions are triggered by
protocol commands from the host.
A scanning procedure or reading in the data area is initiated by a command of the host system using the
communication protocol.
In addition to the actions triggered by the host, a corresponding message can be automatically sent to the
host and an automatic reading operation can be started by activating or releasing a sensor.
When the reading operation is successful, the read data is immediately transmitted to the host. If several
antenna ports are occupied simultaneously, the reading operations are processed sequentially.
Writing actions (data saved to a transponder) are generally only possible via commands from the host.

6.2.2 Polling mode

LF reading devices can be set into a continuous reading state, which is referred to as polling mode.
The device then performs reading operations at regular intervals and outputs the corresponding data of
the read LF transponder.
The reading device also continues carrying out protocol messages in polling mode. This may, however,
result in delays in the poll rhythm. The polling functionality is optional customer-specific available!

6.2.3 Sensor-triggered operation

Device versions with IO port offer the function of a sensor-triggered automatic reading operation. The
reading device automatically performs a reading operation when the input is triggered. The type of action

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
Customer manual
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(inventory/reading) can be defined with the parameters „Read mode“ and „Read page“.
The read data is automatically sent to the host.
The result of the reading operation (successful, not successful) can be optionally output via I/O s of the
antenna port.

6.2.4 Test module

The HERMOS LF reading devices support a test mode that facilitates setting up the antenna and checking
the reading ranges during commissioning. These test mode can be activate with a push button.

If the device is in test mode (maintenance mode) three tri-colour LEDs shows the state of the test mode.
The chapter "Status LEDs" describes the behaviour in test mode.

 see also chapter „push button switches“

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Component

Describtion

Power supply

M12-A plug for 24V DC power supply.

Antenna connection

Lemo antenna connector

Status-LEDs

--->see page 28

Push buttons

Tuning push button switch starts an automatic antenna tuning.
Test push button activates the read test mode. On a long press the

write test mode is activated.

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Illustration

6.3.1 Top view

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Ethernet interface

Depending on the device model, the reading device features a
10/100 BaseT Ethernet interface.

RS232 interface

Depending on the device model, the reading device features a
RS232 interface (9-pin Sub D female).

GPIO

Optional is a GPIO port available, M8 connector

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HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Technical data

Voltage (protected against reverse
polarity)

24VDC (18 – 30 V DC)

Current consumption @24V
(passive, reading, pulse 50ms)

50mA, 200mA, max.580mA

Fuse type Nano2

375 mA

Operating temperature

-0 bis 50 °C

Storage temperature

-20 °C bis 70 °C

Permissible humidity at 50°C

25 – 80 %

Transmission frequency

134,2 kHz

Serial Interface

RS232

Ethernet interface

10/100 BaseT

Protocol

ASCII, SECS / HSMS

Housing material l

Aluminium, black and white anodised

Protection

IP20

Reader dimensions

115 x 82 x 35 mm

Weight

250 g

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Technical data

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Description

Min.

Typ.

Max.

Unit

Voltage (reverse polarity protected)

18

24

30

V (DC)

Current consumption (Read/Write
Pulse 50ms)

200
350

580

mA

Current (passive)

50 mA

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The device label with the CE label, article and serial number are located on the side of the reading unit.

6.4.1 Power supply and current input

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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6.4.2 Device labels

The device label is located on the reading unit housing.
It contains a CE mark, article/serial number and the MAC address.

1. Designation

2. Article number (variants)

3. Serial number (example)

4. MAC address (only for ethernet type)

5. Manufacturer

6.4.3 Device Label FCC ID 2AP5OLFM-LP

FCC

- The Federal Communications Commission (FCC) warns the users that changes or modifications to the unit
not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.

RF exposure statement (mobile and fixed devices)

This device complies with the RF exposure requirements for mobile and fixed devices. However, the
device shall be used in such a manner that the potential for human contact during normal operation is
minimized.

- FCC §15.105 (a):
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

The unit is exclusively designed for indoor use in an industrial
environment.
The unit may only be installed indoors with a temperature and humidity
level with in the range of the specified technical module parameters.

Never use the unit near or in water.
Never pour liquids of any type over the unit. However, if the unit should
still come in contact with liquid, disconnect it and have it checked by a
technician.

Do not install the device near heat sources such as radiators, heat
registers, stoves or other devices (including amplifiers) that generate
heat.
Do not install the unit in a flammable environment.

Never expose the device to extreme temperature fluctuations, since
condensation otherwise develops inside the unit and causes damages.

Do not install the device in the vicinity of voltage lines or other power
lines with which they could collide (for example, drilling), which could
result in serious injuries or even death.

The device (especially the antenna) should not be installed in the
immediate vicinity of electrical equipment such as medical devices,
monitors, telephones, TV sets and magnetic disks, and metal objects.
This could result in reduced read and write ranges.

Never use the unit in explosive areas (such as paint warehouses).

Do not use the device in areas where it is exposed to vibrations or
shocks.

The installation location must be adequately illuminated during the
installation.

Never install the unit during a lightning storm.

Make sure that the installation meets the requirements of the FCC
(country specific) for human exposure to radio frequencies.

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7. Installation

Follow the basic safety instructions in the chapter Safety instructions.

Safety instructions

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

The unit must only be installed by specially trained personnel. If you
have any doubts about the qualifications, please contact the
manufacturer.

If the unit is operated by untrained personnel, the reading device
and or connected devices may be damaged.

The packaging material consists of cardboard and foil.
Dispose of these materials separately under the respective regulations of
your country.

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Qualified installation personnel

Unpacking

The LF reading device and the accessories can be packed customer-dependent in clean
room conditions. In order to maintain this condition, the devices must be unpacked in clean
room conditions.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

The mounting surface must be stable, non-flammable, dry and clean.
If necessary, clean it before you install the device.
Only use components, cable and mounting materials provided by
HERMOS.
Only mount the components at the designated locations and make sure
that the operating and ambient conditions specified in the technical data
are always maintained.

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Mounting the device

Dimensions:

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

When installing the antenna, observe the required reading and writing
ranges. The reading device can only be used properly,
if the transponder is located within the reading and writing range of the
antenna. Tune antenna after a new antenna installation!

Tune antenna after a new antenna installation!

The tuning function can be started with the tuning button.

Transponder is outside the

antenna range

Transponder is within the

antenna range

Transponder is outside the

antenna range

Transponder is within the

antenna range

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Installing the antenna

7.5.1 Positioning the antenna

The removal and alignment of the transponder to the antenna is critical to ensure reliable reading and writing.
The following diagram displays the optimum alignment and position of the transponder to the antenna.

After positioning, the antenna must be tuned to the ambient conditions. The tuning function can be started
with the tuning button.

Transponder parallel to the antenna axis:

Transponder vertical to the antenna axis:

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS
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7.5.2 Antennas dimensions

Block antenna Mini2

Rod antenna M, (HRF.A.LFX.SM.LS.20)

The type of connector is only symbolic and may vary!

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Use the antennas and antenna cable from the manufacturer to ensure
optimum reading and writing ranges.

Tune antenna after a new antenna installation!
The tuning function can be started with the tuning button.

PIN

Signal

1

+24V DC

2

0 V

3,4,5

NC

There are risks if the device is supplied with the incorrect voltage.
Only use cables, plugs and adapters from the manufacturer.
Observe power ratings provided in the technical data.

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7.5.3 Connecting the antenna

Connect the antenna at the antenna connection at the rear of the reading unit.

Power Supply M12-A connector
The device can be connected to the system's internal power supply or an external power supply.

If the device is connected to the power supply, the Status LED lights green (->parameter 35).

7.6.1 Tuning push button

If the pushbutton is held down for a defined time (->parameter 54+55), the status of the pushbutton is
changed and an automatic antenna tuning is initiated when enabled (->parameter 33 and 36).

If the Reader is in test mode, the test mode for the automatic antenna tuning is briefly interrupted when
enabled (->parameter 33).

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

PIN

Signal

1

NC

Customer manual
Version 1.2

LFM LP Reader 15.01.2019

Page 28 of 119

7.6.2 Test push button

If the button is held pressed for a defined time (->parameter 56+57), the status of the button is changed.
If the state changes from "Off" to "On", the test mode Read is started when the Test push button is enabled

(->parameter 36). If the push-button is then held without interruption for a further defined period of time (-

>parameter 56), it switches to the Write test mode. If the state of the button changes from "On" to "Off", the

test mode Read or Write is terminated. The current state of the test mode is indicated by a unique status
LED (->Status LED).

Status LEDs

Status LEDs:
The status LED is a tri-colour/RGB LED. The white or blue status LED indicates the status of the test
mode. If the reader is in maintenance mode or the reading test mode is running, the white status LED
flashes at about 1 Hz in reading testmode and 2 Hz in maintenance mode. If the reader is in maintenance
mode and the writing test mode is running, the blue status LED flashes at about 1 Hz. If the reader is in
normal operation mode, the green status LED is permanently shining (->parameter 35).

Test LEDs:
The test LED is a tri-colour/RGB LED. The red and green Test LEDs are used for the reading and writing
feedback in test or polling mode.
If the read or write process is successful, the green test LED remains permanently lit. If the read or write
process fails, the red test LED shines.

In normal operation mode the red and green test LEDs are used for the last reading and writing feedback.
In this mode the red or green test LED will light for 5 seconds (->parameter 84) after the last reading.

Tuning LEDs:
The tuning LED is a tri-colour/RGB LED. The red and green tuning LEDs are used for the tuning feedback.
After a successful antenna tuning, the green tuning LED is switched on for 5 seconds (->parameter 84). If no
valid antenna tuning is found during antenna tuning or if an invalid tuning is detected during a read operation,
the red tuning LED flashes quickly for 5 seconds (->parameter 84 and 85). During automatic antenna tuning,
the blue tuning LED flashes.

After a powerup reset, the Tri-Colour LEDs undergo a short self-test and then display the set communication
protocol for one second:
SECS: The red status LED goes on briefly
ASCII: The red test LED goes on briefly

RS232 connection

The serial interface is implemented as a Sub-D plug connector (9-pin, female). A serial connection line
(1:1 circuit) can be used.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

2

TxD

3

RxD

4

NC

5

GND

6

NC

7

NC

8

NC

9

NC

PIN

Signal

1

+24V

2

LED out

3

GND

4

Input

Customer manual
Version 1.2

LFM LP Reader 15.01.2019

Page 29 of 119

GPIO connection (optional)

A M8 socket (4pos.) is used as connection socket for the GPIO

8. Commissioning

Operating conditions

The following requirements must be fulfilled for smooth device operation.

1. The operating temperature must be within the scope of the values specified in the technical data.

2. The device must be connected to the power supply).

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]

Protocol description ASCII, SECS/HSMS

Value

Baud rate

19200

Data bits

8

Stop bits

1

Parity

ASCII: Even
SECS/HSMS: None

Customer manual
Version 1.2

LFM LP Reader 15.01.2019

Page 30 of 119

3. An antenna must be properly connected to the reading device. If the antenna has not yet been
tuned (->Status LEDs), then the automatic tuning must be carried out.

4. A transponder must be within the reading and writing ranges of the connected antenna.

5. After startup the reader works in operation mode.

The serial interface parameters

The following settings of the serial interfaces are set on delivery. The baud rate can be changed in the in
the SECS protocol (->Parameter 0x01). If you want to change the baud rate in the ASCII protocol, then

please contact the manufacturer HERMOS.

HERMOS AG
Gartenstrasse 19 Tel. [phone]
D-95490 Miste lgau Fax. [phone]