Beckhoff KL3042 Bedienungsanleitung

Operating instructions for

KL3041, KL3042 and KL3044

Single-, Two- and Four-Channel Analog Input Terminals

Measuring range: 0 to 20 mA

and

KL3051, KL3052 and KL3054

Single-, Two- and Four-Channel Analog Input Terminals

Measuring range: 4 to 20 mA

Version: 3.2

Date: 2006-10-12

Table of contents

KL304x and KL305x

Table of contents

1. Foreword 1

Safety Instructions 1

2. Technical data 2

3. Connection 2

KL3041 and KL3051 2

KL3042 and KL3052 3

KL3044 and KL3054 3

4. Functional description 4

5. Terminal configuration 6

6. Register Description 7

General Description of Registers 7

Terminal-specific register description 10

Control and Status byte 13

7. Appendix 16

Mapping 16

Support and Service 20

Foreword

KL304x and KL305x 1

Foreword

Safety Instructions

Personnel Qualification

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.

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.

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 Elektro BECKHOFF GmbH.

this publication, whether in whole or in part, without the written permission

of Elektro BECKHOFF GmbH, is forbidden.

Technical data

2 KL304x and KL305x

Technical data

KL3041 KL3051 KL3042 KL3052 KL3044 KL3054

Number of inputs 1 1 2 2 4 4

Power supply 24 V

via the power contacts

Signal current 0..20mA 4..20mA 0..20mA 4..20mA 0..20mA 4..20mA

Internal resistance typically 80 Ω+ diode voltage 0.7V

Surge voltage resistance 35 V max.

Resolution 12 bits

Conversion time

~ 1 ms ~ 2 ms ~ 4 ms

Meas. error (total meas. range) < ± 0.3% (of the full scale value)

Electrical isolation 500 V

rms

(K-Bus/signal voltage)

Current consumption from K-Bus typically 65 mA

Bits width in process image Input: 1 x 16 bits of

data

(1 x 8 bit

control/status

optional)

Input: 2 x 16 bits of

data

(2 x 8 bit

control/status

optional)

Input: 4 x 16 bits of

data

(4 x 8 bit

control/status

optional)

Configuration no address or configuration settings

Weight approx. 70 g

Operating temperature 0°C ... +55°C

Storage temperature -25°C ... +85°C

Relative humidity 95 % no condensation

Vibration / shock resistance according to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29

EMC resistance burst / ESD according to EN 61000-6-2 / EN 61000-6-4

Installation position any

Protection class IP20

Connection

KL3041 and KL3051

Connection

KL304x and KL305x 3

KL3042 and KL3052

KL3044 and KL3054

Functional description

4 KL304x and KL305x

Functional description

The analog input terminals

- KL304x process signals in the range between 0 and 20 mA

- KL305x process signals in the range between 4 and 20 mA

with a resolution of 12 bits (4095 increments). They can supply the sensors

from voltage fed in via the power contacts. The power contacts can

optionally be supplied via the standard supply or via a feed terminal with

electrical isolation.

Process data output format In the delivery state the process data are shown in two's complement form

(integer -1 corresponds to 0xFFFF). Other display types can be selected

via the feature register (e.g. sign/amount representation, Siemens output

format).

Measured value Output

KL304x KL305x Decimal Hexadecimal

0 mA 4 mA 0 0x0000

10 mA 12 mA 16383 0x3FFF

20 mA 20 mA 32767 0x7FFF

LED display The LEDs indicate the operating state of the associated terminal channels.

Green LED: RUN (not applicable for KL3044 and KL3054)

•On: normal operation

•Off: Watchdog-timer overflow has occurred. If no process data is

transmitted to the bus coupler for 100 ms, the green LEDs go out.

Red LED: ERROR

•On: The limit stop of the A/D converter has been reached. The

current is greater than 21.5 mA.

•Off: normal operation

Functional description

KL304x and KL305x 5

Process data The process data that are transferred to the Bus Coupler are calculated

using the following equations:

X_adc: Output values of the A/D converter

Y_aus: Process data to PLC

B_a,A_a: Manufacturer gain and offset compensation (R17, R18)

B_h,A_h: Manufacturer scaling (R19, R20)

B_w,A_w: User scaling (R33, R34)

a)Neither user nor manufacturer scaling are active:

Y_a = (B_a + X_adc) * A_a (1.0)

Y_aus = Y_a

b)Manufacturer scaling active (factory setting):

Y_1 = B_h + A_h * Y_a (1.1)

Y_aus = Y_1

c) User scaling active:

Y_2 =B_w + A_w * Y_a (1.2)

Y_aus = Y_2

d)Manufacturer and user scaling active:

Y_1 = B_h + A_h * Y_a (1.3)

Y_2 = B_w + A_w * Y_1 (1.4)

Y_aus = Y_2

The equations of the straight line are activated via register R32.

amount rep.

user scalingmanuf. scal.Gain, Offset adjust.

add. bits

Terminal configuration

6 KL304x and KL305x

Terminal configuration

The terminal can be configured and parameterized via the internal register

structure. Each terminal channel is mapped in the Bus Coupler. Depending

on the type of the Bus Coupler and the mapping configuration (e.g.

Motorola/Intel format, word alignment etc.) the terminal data are mapped in

different ways to the Bus Coupler memory. For parameterizing a terminal,

the control and status byte also has to be mapped.

BK2000 Lightbus Coupler In the BK2000 Lightbus coupler, the control and status byte is mapped in

addition to the data bytes. This is always located in the low byte at the

offset address of the terminal channel.

Example for KL3042 and KL3052:

Offset Terminal1 Channel1 = 0

Offset Terminal2 Channel1 = 4

L3042

Offset Terminal2 Channel2 = 8

User data allocation depending

on mapping

-Bus

Beckhoff-Lightbus

bus coupler

B 2000

To the bus terminal

C/S - 0

D0 - 0

D0 - 1

D1 - 0

D1 - 1 C/S - 1

C/S

Data LData H

Data H Data L

C/S

The terminal is

mapped in the

bus coupler.

BK3000 Profibus coupler For the BK3000 Profibus coupler, the master configuration should specify

for which terminal channels the control and status byte is to be inserted. If

the control and status byte are not evaluated, the terminals occupy 2 bytes

per channel:

•KL3041 and KL3051: 2 bytes of input data

•KL3042 and KL3052: 4 bytes of input data

•KL3044 and KL3054: 8 bytes of input data

Example for KL3042 and KL3052:

Offset Terminal1 Channel1 = 0

Offset Terminal1 Channel2 = 3

Offset Terminal2 Channel1 = 6

L 3042 Channel1

L 3042 Channel 2

The control-/status byte

must be inserted for

parameterization.

-Bus

Profibus bus coupler

B 3000

To the bus terminal

Data H

Data L

D1 - 0

D0 - 0

D0 - 1

D1 - 1

C/S - 0

C/S

C/S - 1

The terminal is

mapped in the

bus coupler.

KL304x and KL305x 7

BK4000 Interbus Coupler The BK4000 Interbus Coupler maps the terminals in the delivery state with

2 bytes per channel:

•KL3041 and KL3051: 2 bytes of input data

•KL3042 and KL3052: 4 bytes of input data

•KL3044 and KL3054: 8 bytes of input data

Parameterization via the fieldbus is not possible. If the control and status

byte is to be used, the KS2000 configuration software is required.

Example for KL3042 and KL3052:

Offset Terminal1 Channel1 = 0

Offset Terminal2 Channel1 = 4

Offset Terminal1 Channel2 = 2

Offset Terminal2 Channel1 = 6

The control/status byte

must be inserted for

parameterization ( S2000).

-Bus

Interbus bus coupler

B 4000

To the bus terminal

D0 - 1

D0 - 0

Data H

D1 - 0

D1 - 1

Data L

The terminal is

mapped in the

bus coupler.

Other Bus Couplers and

further information Further information about the mapping configuration of Bus Couplers can

be found in the Appendix of the respective Bus Coupler manual under

Master configuration.

Note

The Appendix contains an overview of possible mapping configurations

depending on the parameters that can be set.

Parameterization with

KS2000 The parameterizations can be carried out independently of the fieldbus

system with the KS2000 configuration software via the serial configuration

interface in the Bus Coupler.

Different operating modes or functionalities may be set for the complex

terminals. The General Description of Registers explains those register

contents that are the same for all complex terminals.

The terminal-specific registers are explained in the following section.

Access to the internal terminal registers is described in the Register

Communication section.

General Description of Registers

Complex terminals that possess a processor are able to exchange data bi-

directionally with the higher-level controller. These terminals are referred to

below as intelligent Bus Terminals. These include analog inputs, analog

outputs, serial interface terminals (RS485, RS232, TTY etc.), counter

terminals, encoder interface, SSI interface, PWM terminal and all other

parameterizable terminals.

8 KL304x and KL305x

The main features of the internal data structure are the same for all the

intelligent terminals. This data area is organized as words and comprises

64 registers. The important data and parameters of the terminal can be

read and set through this structure. It is also possible for functions to be

called by means of corresponding parameters. Each logical channel in an

intelligent terminal has such a structure (so a 4-channel analog terminal

has 4 sets of registers).

This structure is divided into the following areas:

(A detailed list of all registers can be found in the Appendix.)

0 to 7 Process variables

8 to 15 Type register

16 to 30 Manufacturer parameters

31 to 47 User parameters

48 to 63 Extended user area

Process variables

R0 to R7 Registers in the terminal's internal RAM:

The process variables can be used in addition to the actual process image.

Their function is specific to the terminal.

R0 to R5: Terminal-specific registers

The function of these registers depends on the respective terminal type

(see terminal-specific register description).

R6: Diagnostic register

The diagnostic register can contain additional diagnostic information. Parity

errors, for instance, that occur in serial interface terminals during data

transmission are indicated here.

R7: Command register

High-Byte_Write = function parameter

Low-Byte_Write = function number

High-Byte_Read = function result

Low-Byte_Read = function number

Type register

R8 to R15: Registers in the internal ROM of the terminal

The type and system parameters are hard programmed by the

manufacturer, and the user can read them but cannot change them.

R8: Terminal type

The terminal type in register R8 is needed to identify the terminal.

R9: Software version (X.y)

The software version can be read as a string of ASCII characters.

R10: Data length

R10 contains the number of multiplexed shift registers and their length in

bits.

The Bus Coupler sees this structure.

R11: Signal channels

Related to R10, this contains the number of channels that are logically

present. Thus for example a shift register that is physically present can

perfectly well consist of several signal channels.

R12: Minimum data length

The particular byte contains the minimum data length for a channel that is

to be transferred. If the MSB is set, the control and status byte is not

necessarily required for the terminal function and is not transferred to the

control, if the Bus Coupler is configured accordingly.

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