Connection N°

The connection number is unique. It is automatically assigned by EcoStruxure Machine Expert.

Connection Name

The connection name is generated automatically by EcoStruxure Machine Expert.

RPI O --> T (ms)

Requested Packet Interval: The time period between cyclic data transmissions requested by the scanner.

RPI T --> O (ms)

O->T size (byte)

Number of bytes to exchange between the Originator (O) and the Target (T).

T->O size (byte)

Config#1 size (byte)

Number of bytes of configuration parameters to transfer.

Displayed if the connection contains a configuration assembly.

Config#2 size (byte)

1

In the Devices tree, double-click an EtherNet/IP device.

2

Select the Connections tab.

3

Click Add Connection.

4

Select generic connection (free configurable):

5

Select generate path automatically.

6

Select Configuration assembly.

7

Configure the Consuming assembly (O --> T):

oClass ID (4 by default): Class identifier⁽¹⁾

oInstance ID: Instance identifier⁽¹⁾

oAttribute ID (3 by default): Attribute identifier⁽¹⁾

8

Configure the Producing assembly (T --> O):

oClass ID (4 by default): Class identifier⁽¹⁾

oInstance ID: Instance identifier⁽¹⁾

oAttribute ID (3 by default): Attribute identifier⁽¹⁾

9

Select the Timeout Multiplier: 4 (default) / 8 / 16 / 32 / 64 / 128 / 256 / 512

10

Configure the Scanner to Target (Output):

oO --> T Size (Bytes): Number of bytes to transfer: up to 505

oTrigger Type: Cyclic

oRPI (ms) (10 ms by default): The time period between cyclic data transmissions requested by the scanner.

11

Configure the Target to Scanner (Input):

oT --> O Size (Bytes): Number of bytes to transfer (Number of channels of the assembly): up to 509)

oTrigger Type: Cyclic/Change of state. If Change of state is selected, then Inhibit Time is enabled and set to the default value of 2 ms

oRPI (ms) (10 ms by default): The time period between cyclic data transmissions requested by the scanner

oInhibit Time (ms) (2 ms by default): Minimum period of time between 2 data exchanges. Accessible if Trigger Type is Change of state. The value must be a multiple of 2 ms. The maximum value is the target to scanner RPI (ms) value, up to a maximum possible value of 254 ms.

12

Click OK.

⁽¹⁾ The Class ID, Instance ID, and Attribute ID can be found in the device documentation. Refer to How To Find Assembly Information.

1

In the Devices tree, double-click an EtherNet/IP device.

2

Select the Connections tab.

3

Click Add Connection.

4

Select predefined connection (EDS-File):

4

Select one of the predefined connections.

5

Select the Timeout Multiplier: 4 (default) / 8 / 16 / 32 / 64 / 128 / 256 / 512

6

Configure the Scanner to Target (Output):

oO --> T Size (Bytes): Number of bytes to transfer

oTrigger Type: Cyclic

oRPI (ms) (default value is defined in the EDS): The time period between cyclic data transmissions requested by the scanner.

7

Configure the Target to Scanner (Input):

oT --> O Size (Bytes): Number of bytes to transfer (Number of channels of the assembly)

oTrigger Type: Cyclic/Change of state. If Change of state is selected, then Inhibit Time is enabled and set to the default value of 2 ms

oRPI (ms) (default value is defined in the EDS): The period of time between cyclic data transmissions requested by the scanner

oInhibit Time (ms) (2 ms by default): Minimum period of time between 2 data exchanges. Accessible if Trigger Type is Change of state. The value must be a multiple of 2 ms. The maximum value is the target to scanner RPI (ms) value, up to a maximum possible value of 254 ms.

8

Click OK.

1

In the Devices tree, double-click an EtherNet/IP device.

2

Select the Connections tab.

3

Select an existing connection and click Edit Connection.

4

Select generate path automatically.

5

Select Configuration Assembly.

6

Configure the Configuration Assembly:

oClass ID (4 by default): Class identifier⁽¹⁾

oInstance ID: Instance identifier⁽¹⁾

oAttribute ID (3 by default): Attribute identifier⁽¹⁾

7

Click Show all parameters >>>.

8

Configure the Scanner to Target (Output):

oConfig#1 Size (Bytes): Number of the first set of configuration parameters.

oConfig#2 Size (Bytes): Number of the second set of configuration parameters.

9

Click OK.

Result: The configuration parameters are displayed in the Connections tab:

10

Double-click in the Value column to set the configuration parameter values.

(1)   The Class ID, Instance ID, and Attribute ID can be found in the device documentation. Refer to How To Find Assembly Information.

Generate path automatically

Yes/No

Enables you to configure the parameters of the assemblies.

Configuration assembly

True/False

Enables you to configure a configuration assembly.

Class ID

2 bytes (04h by default)

Class identifier⁽¹⁾

Instance ID

2 bytes (0 by default)

Instance identifier⁽¹⁾

Attribute ID

2 bytes (03h by default)

Attribute identifier⁽¹⁾

Consuming Assembly (O --> T)

Class ID

2 bytes (04h by default)

Class identifier⁽¹⁾

Instance ID

2 bytes (0 by default)

Instance identifier⁽¹⁾

Attribute ID

2 bytes (03h by default)

Attribute identifier⁽¹⁾

Producing Assembly (T --> O)

Class ID

2 bytes (04h by default)

Class identifier⁽¹⁾

Instance ID

2 bytes (0 by default)

Instance identifier⁽¹⁾

Attribute ID

2 bytes (03h by default)

Attribute identifier⁽¹⁾

User-defined path

Yes/No

Disable the Generate path automatically area and enable the Connection Path field

⁽¹⁾ The Class ID, Instance ID, and Attribute ID can be found in the device documentation. Refer to How To Find Assembly Information.

Connection Path

Array of bytes

Coded transcription of the physical link object.

Transport Type

oExclusive Owner (default)

oListen Only

oInput Only

Exclusive Owner: This is a bidirectional connection to an Output connection point (typically an Assembly Object), where the data of this assembly can only be controlled by one Scanner. There may be a connection to an input assembly; this data is being sent to the scanner. If the input data length is zero, then this direction becomes a Heartbeat connection.

Listen only: The scanner receives input data from the target device and produces a Heartbeat to the target device. There is no Output data. A Listen Only Connection can only be attached to an existing Exclusive Owner or Input Only Connection. If this underlying connection stops, then the Listen Only connection is also stopped or timed out.

Input Only: The scanner receives input data from the target device and produces a Heartbeat to the target device. There is no Output data.

Timeout Multiplier

4 (default) / 8 / 16 / 32 / 64 / 128 / 256 / 512

Scanner Timeout is managed connection by connection with RPI and timeout multiplier.

O --> T Size (Bytes)

0 to XX => device specific

Size of channel for an assembly.

The memory size of each channel is 2 bytes that stores the value of %IWx or %QWx object, where x is the channel number.

RPI (ms)

In ms (10 ms by default)

Requested Packet Interval. The time period between cyclic data transmissions requested by the scanner.

The device always provides a minimum RPI, whereas in the controller the goal is to have the highest RPI in order to not overload the system. Each time a device is added to the EtherNet/IP fieldbus, or each time a RPI value is modified, it is recommended to check the resources (refer to the scanner resource checker).

The device RPI may be specified in the device documentation. Usually, however, this information is provided as part as the EDS file delivered with the device.

Trigger Type

Cyclic

Cyclic: Endpoints send their messages at pre-determined cyclic time intervals

Inhibit Time

0 ms

Used for change of state trigger type.

Config#1 Size (Bytes)

0 to XX => device specific

Accessible if connection path contains a configuration assembly.

Numbers of parameter (1 byte) to transfer.

The configuration values are sent to the device at the scanner start.

Config#2 Size (Bytes)

0 to XX => device specific

Connection Type

Point to Point

Connection type of the request

Fixed/Variable

Fixed

The request length is fixed.

Transfer format

o32 bit Run-idle (by default)

opure Data

oHeartbeat

Transfer format of the request. For more information, refer to ODVA website.

NOTE: If transfer format is set to 32 bit Run-idle, the scanner status is sent in the request. Targets may not respond in the same manner when they receive the information that the scanner is in IDLE status. For example, some targets may not update their inputs while others do when the controller is STOPPED or HALT.

T --> O Size (Bytes)

0 to XX => device specific

Size of channel of an assembly.

The memory size of each channel is 2 bytes that stores the value of %IWx or %QWx object, where x is the channel number.

RPI (ms)

In ms (10 ms by default)

Requested Packet Interval. The time period between cyclic data transmissions requested by the scanner.

The device is always providing a minimum RPI, whereas in the controller the goal is to have the highest RPI in order to not overload the system. Each time a device is added to the EtherNet/IP fieldbus, or each time a RPI value is modified, it is recommended to check the resources (refer to the scanner resource checker).

The device RPI may be specified in the device documentation. Usually, however, this information is provided as part as the EDS file delivered with the device.

Trigger Type

oCyclic (default)

oChange of state

Cyclic: Endpoints send their messages at pre-determined cyclic time intervals

Change of state: Change of state endpoints send their messages when a change occurs. The data is also sent at a background cyclic interval (RPI) if no change occurs to keep the connection from timing out.

Inhibit Time (ms)

In multiples of 2 ms (2 ms by default)

Minimum period time between 2 data exchanges.

Accessible if Trigger Type is Change of state. Inhibit Time maximum value is RPI and is limited to 254 ms.

Fallback Mode

Go to zero <default>

Reset the input on error/stop

Connection Type

oMulticast (default)

oPoint to Point

Connection type of the request

Fixed/Variable

Fixed

The request length is fixed.

Transfer format

opure Data (by default)

oHeartbeat

Transfer format of the request. For more information, refer to ODVA website.