AKT2G-AT-425-000

Four-channel analog output terminals, -10..+10 V, 12 bit

The AKT2G-AT-425 Analog Output Terminal generates signals in the range from -10 V to +10 V. The voltage is supplied to the process level with a resolution of 12 bits, and is electrically isolated. The output channels of an EtherCATClosed ***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs Terminal have a common ground potential. The output stages are powered by the 24 V supply. The signal state of the EtherCAT Terminals is indicated by light emitting diodes. The AT-425 supports distributed clocks, i.e. the input data can be monitored synchronously with other data that are also linked to distributed clock terminals. The accuracy across the system is < 100 ns.

See Also:

LEDs

LED

Color

Meaning

RUN

green

This LED indicates the terminal's operating state:

off

State of the EtherCAT State Machine: INIT = initialization of the terminal, state of the EtherCAT State Machine: BOOTSTRAP = function for firmware updates of the terminal

flashing

State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set

single flash

State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks.

Outputs remain in safe state

on

State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible

If several RUN LEDs are present, all of them have the same function.

Object Description and Parameterization

Restore objects

Index 1011 Restore default parameters

Index (hex)

Name

Meaning

Data type

Flags

Default

1011:0

Restore default parameters

Restore default parameters

UINT8

RO

0x01 (1dec)

1011:01

SubIndex 001

If this object is set to “0x64616F6C” in the set value dialog, all backup objects are reset to their delivery state.

UINT32

RW

0x00000000 (0dec)

Configuration data

Index 8pp0 AO settings Ch.1-8

Index (hex)

Name

Meaning

Data type

Flags

Default

8pp0:0

AO settings Ch.1-8

Max. Subindex

UINT8

RO

0x16 (22dec)

8pp0:01

Enable user scale

User scale is active.

BOOLEAN

RW

0x00 (0dec)

8pp0:02

Presentation
  1. Signed presentation

    The measured value is presented in two’s complement format.

    Maximum representation range for 16 bits = -32768dec ... +32767dec

  2. Unsigned presentation

    Maximum presentation range for 16 bit : 0 .. +65535dec

  3. Absolute value with MSBClosed "Most significant bit" Sometimes abbreviated as MSB, the most significant bit is the bit position in a binary number having the greatest value as sign

    The measured value is output in magnitude-sign format.

    Maximum representation range for 16 bits = -32768dec ... +32767dec

  4. Absolute value

    Negative numbers are also output as positive numbers.

BIT3

RW

0x00 (0dec)

8pp0:05

Watchdog

0: Default watchdog value

  1. The default value (8pp0:13) is active.
  2. Watchdog ramp

    The ramp (8pp0:14) for moving to the default value is active.

  3. Last output value

    In the event of a watchdog drop the last process data is issued.

BIT2

RW

0x00 (0dec)

8pp0:07

Enable user calibration

Enable user calibration

BOOLEAN

RW

0x00 (0dec)

8pp0:08

Enable vendor calibration

Enable vendor calibration

BOOLEAN

RW

0x01 (1dec)

8pp0:11

Offset

User scaling offset

INT16

RW

0x0000 (0dec)

8pp0:12

Gain

User scaling gain.

The gain is represented in fixed-point format, with the factor 2-16.

The value 1 corresponds to 65535 (0x00010000).

INT32

RW

0x00010000 (65536dec)

8pp0:13

Default output

default output value

INT16

RW

0x0000 (0dec)

8pp0:14

Default output ramp

Ramp for ramping down to the default value Value in digits/ms.

UINT16

RW

0xFFFF (65535dec)

8pp0:15

User calibration offset

User calibration offset

INT16

RW

0x0000 (0dec)

8pp0:16

User calibration gain

User calibration gain

UINT16

RW

0xFFFF (65535dec)
Index 8ppE AO internal data Ch.1-8

Index (hex)

Name

Meaning

Data type

Flags

Default

8ppE:0

AO internal data Ch.1-8

Max. Subindex

UINT8

RO

0x01 (1dec)

8ppE:01

DAC raw value

DAC raw value

UINT16

RO

0x0000 (0dec)
Index 8ppF AO vendor data Ch.1-8

Index (hex)

Name

Meaning

Data type

Flags

Default

8ppF:0

AO vendor data Ch.1-8

Max. Subindex

UINT8

RO

0x02 (2dec)

8ppF:01

Calibration offset

Vendor calibration offset

INT16

RW

0x0000 (0dec)

8ppF:02

Calibration gain

Vendor calibration gain

UINT16

RW

0x1EFA (7930dec)

Output Data

Index 7pp0 AO outputs Ch.1-8

Index (hex)

Name

Meaning

Data type

Flags

Default

7pp0:0

AO outputs Ch.1-8

Max. Subindex

UINT8

RO

0x01 (1dec)

7pp0:01

Analog output

Analog output data

INT16

RO

0x0000 (0dec)

Technical Data

Technical Data

AKT2G-AT-425-000

Number of outputs

4

Power supply

24 V DC via the power contacts

Signal voltage

-10 ..+10 V

Load

> 5 kΩ (short-circuit-proof)

Measuring error

< ± 0.1% (at 0 °C ... +55 °C, relative to the full scale value)

< ± 0.2% (when the extended temperature range is used)

Resolution

12 bit

Conversion time

~ 250 µs

Power supply for electronics

via the E-bus

Distributed Clocks

yes

Current consumption via Ebus

typ. 140 mA

Electrical isolation

500 V (E-bus/field voltage)

Bit width in process image

4 x 16-bit AO output

Configuration

via KAS IDEClosed "Integrated development environment" An integrated development environment is a type of computer software that assists computer programmers in developing software. IDEs normally consist of a source code editor, a compiler and/or interpreter, build-automation tools, and a debugger

Weight

approx. 60 g

Permissible ambient temperature range during operation

-25 °C ... +60 °C

(extended temperature range)

Permissible ambient temperature range during storage

-40 °C ... +85 °C

Permissible relative humidity

95%, no condensation

Dimensions (W x H x D)

approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)

Mounting

on 35 mm mounting rail conforms to EN 60715

Vibration/shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27,

see also installation instructions for enhanced mechanical load capacity

EMC immunity/emission

conforms to EN 61000-6-2 / EN 61000-6-4

Protection class

IP20

Installation position

variable

Approval

CE, ATEX, cULus