BECKHOFF KL1501 User Manual

Documentation for

KL1501

Up/Down-Counter Terminal, 24 VDC, 100 kHz

Version: 2.2
Date: 2006-10-20

Table of Contents

Table of Contents

1 Foreword 1

1.1 Notes on the documentation 1

1.1.1 Liability Conditions 1

1.1.2 Delivery conditions 1

1.1.3 Copyright 1

1.2 Safety Instructions 2

1.2.1 State at Delivery 2

1.2.2 Description of safety symbols 2

2 Product Overview 3

2.1 Technical data 3

2.2 Functional Description 4

3 Terminal configuration 5

3.1 Register Overview 7

3.2 Register description 7

3.2.1 General register description 7

3.2.2 Terminal-specific register description 10

3.3 Control and Status Byte 11

3.4 Register communication with KL1501 12

3.4.1 Examples for Register Communication 13

3.5 Data transfer, function 14

3.5.1 Automatic setting of the outputs with defined counter readings 14

4 Appendix 15

4.1 Mapping in the bus coupler 15

4.2 Support and Service 17

4.2.1 BECKHOFF Support 17

4.2.2 BECKHOFF Service 17

4.2.3 BECKHOFF company headquarters 17

KL1501

Foreword

1 Foreword

1.1 Notes on the documentation

This description is only intended for the use of trained specialists in control and automation engineering
who are familiar with the applicable national standards. It is essential that the following notes and
explanations are followed when installing and commissioning these components.

1.1.1 Liability Conditions

The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
The documentation has been prepared with care. The products described are, however, constantly under
development. For that reason the documentation is not in every case checked for consistency with
performance data, standards or other characteristics. None of the statements of this manual represents a
guarantee (Garantie) in the meaning of § 443 BGB of the German Civil Code or a statement about the
contractually expected fitness for a particular purpose in the meaning of § 434 par. 1 sentence 1 BGB. In
the event that it contains technical or editorial errors, we retain the right to make alterations at any time
and without warning. No claims for the modification of products that have already been supplied may be
made on the basis of the data, diagrams and descriptions in this documentation.

1.1.2 Delivery conditions

In addition, the general delivery conditions of the company Beckhoff Automation GmbH apply.

1.1.3 Copyright

©

This documentation is copyrighted. Any reproduction or third party use of this publication, whether in

whole or in part, without the written permission of Beckhoff Automation GmbH, is forbidden.

KL1501 1

Foreword

i

1.2 Safety Instructions

1.2.1 State at Delivery

All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.

1.2.2

The following safety symbols are used in this documentation. They are intended to alert the reader to the
associated safety instructions..

Description of safety symbols

This symbol is intended to highlight risks for the life or health of personnel.

Danger

This symbol is intended to highlight risks for equipment, materials or the

Attention

Note

environment.
This symbol indicates information that contributes to better understanding.

2 KL1501

Product Overview

2 Product Overview

Product name KL1501

Number of counters

Rated load voltage

‘0’ signal voltage
‘1’ signal voltage

Switching frequency

Input current

Current consumption from K-Bus

Counter depth

Electrical isolation

Bit width in the process image

Configuration

Weight approx.

Operating temperature

Storage temperature

Relative humidity

Vibration / Shock resistance

EMC resistance burst / ESD

Installation position

Type of protection

2.1 Technical data

1 or 2
24 VDC (20 V ... 29 V)

-3 V ... 5 V
15 V ... 30 V
100 kHz (2 kHz by switching U/D)
typical 5 mA.
typical 50 mA
32 bit or 2 x 16 bit
500 Vrms (K-Bus / field voltage)
40 I/O: 32 bits data, 8 bits control/status
no address settings, configurations via bus coupler or control system
50 g
0°C ... +55°C

-25°C ... +85°C
95%, no condensation
conforms to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29
conforms to EN 61000-6-2 / EN 61000-6-4
any
IP20

KL1501 3

Product Overview

2.2 Functional Description

The input terminal KL1501 counts binary pulses and transmits the current

value to the higher-level control system. In addition to the 32-bit up/down
counter, a 32 bit gated counter or two 16 bit counters are available as
operating modes. In the gated counter mode, a low level or high level at
the gate input suppresses the terminal’s counting function. If two 16 bit
counters are active, the U/D input is the clock input for the second counter.
Two digital outputs can also be set.

The maximum input frequency is limited to 100 kHz. The minimum pulse
width of the input signal is approximately 1 microsecond. The counters
react to the rising edge of the input signal.

Via the control byte, from the control system the counter status can be set,
the terminal’s counting function can be suppressed and the outputs can be
activated. An internal function can also be activated to enable automatic
setting of the outputs at defined counter statuses.

LED display The LEDs indicate the states of the U/D and CLOCK inputs as well as the

states of the outputs OUT1 and OUT2.

Process data
Standard output format

When using the standard output format, 5 bytes (4 bytes of user
information data and 1 control/status byte) are mapped. The process data
differs depending on the set function:

• Gated counter:
32 bit unsigned integer

• Up/down counter:
32 bit signed integer

• Two active counters:
2 x 16 bit unsigned integer

Mapping of the terminal in the standard format is described in further detail
in the appendix.

Alternative output format If the alternative output format is chosen, pay attention to the fact that the

output length (4 bytes or 6 bytes instead of 5 bytes) and mapping of the
terminal are changed.

• Up/down counter:
24 bit signed integer

• Gated counter:
24 bit signed integer

• Two active counters:
1 x 8 bit counter0 and 1 x 16-bit counter1

4 KL1501