Configuring the Fieldbus Interface

Introduction

This section describes the configuration of the Modicon TM5 EtherNet/IP Fieldbus Interface as an Ethernet/IP target device.

For further information about EtherNet/IP, refer to the www.odva.org website.

EtherNet/IP Target Configuration

To configure your TM5NEIP1 as an EtherNet/IP target device, add the fieldbus interface to your project. Refer to Adding a Fieldbus Interface.

Industrial Ethernet Port Configuration

The device can be connected via Industrial Ethernet. For information and procedures necessary to configure the device network, refer to the EcoStruxure Machine Expert EtherNet/IP User Guide.

EtherNet/IP Parameter Configuration

To configure the Ethernet/IP parameters, double-click the TM5 EtherNet/IP Fieldbus Interface node in the Devices tree.

Target Settings Tab

The configured parameters are explained as below:

Configurable Parameters		Description
IP Address by DHCP		IP address is obtained via DHCP
Fixed IP Address		IP address, subnet mask and gateway address are defined by the user

NOTE: DHCP Device name longer than 16 characters are not supported.

Electronic Keying

Electronic Keying signatures are used to identify the device. Electronic Keying is information contained in the firmware of the device (Vendor Code, Product Code, …).When the controller scanner starts, it compares each selected electronic keying value with the corresponding information in the device. If the device values are not the same as the application values, the logic controller no longer communicates with the device.

You can configure any of following Electronic Keying attributes:

Attribute	Description
Check Device Type	The general type of the product.
Check Vendor Code	The device manufacture.
Check Product Code	The specific type of the product. The Product Code maps to a catalog number. The Product Code differentiates the product from other products of the same Device Type under the indicated Vendor.
Check Major Revision	A number that represents the functional capabilities of a device. Typically, a Major Revision is backwards compatible with a lower Major Revision.
Check Minor Revision	A number that represents behavior changes in the device, for example, anomaly corrections. This number does not represent the functional capabilities of a device.

Connections on Ethernet/IP

To access a target device, an Originator opens a connection which can include several sessions that send requests.

One explicit connection uses one session (a session is a TCP or UDP connection).

One I/O connection uses two sessions.

The total number of connections is 32.

NOTE: The TM5 EtherNet/IP Fieldbus Interface supports cyclic connections. If an Originator opens a connection using a change of state as a trigger, packets are sent at the RPI rate.

Configuration Stream Tab

The following table shows the parameters available in the Configuration Stream tab:

Parameter name	Type	Value	Description
TM5 Bus
TM5CycleTime	Enumeration of BYTE	0: 40000 us 1: 35000 us 2: 30000 us 3: 25000 us 4: 20000 us 5: 15000 us 6: 10000 us* 7: 500 us	TM5 link configuration
Communication Loss
CommunicationLossAction	Enumeration of BYTE	0: No Action 1: Set Ouputs to Zero* 2: Reserved 3: Freeze Outputs 4: Disable new Class 1 Connections	Communication interruption (timeout) action
CommunicationLossFieldOfAction	Enumeration of BYTE	0: Assembly Local 1: Global*	Communication interruption (timeout) scope
CommunicationLossResetMode	Enumeration of BYTE	0: Exploit via Bus Controller Object, Instance service 32 hex 1: Reestablish I/O connection*	Communication interruption (timeout) reset mode
Controller Programming Mode
ProgrammModeAction	Enumeration of BYTE	0: No Action 1: Set Outputs to Zero* 2: Reserved 3: Freeze Outputs 4: Disable new Class 1 Connections	Program mode (idle) action
ProgramModeFieldOfAction	Enumeration of BYTE	0: Assembly Local 1: Global*	Program mode (idle) scope
Miscellaneous
Webserver	Enumeration of BYTE	0: Disabled* 1: Enabled	Enables or disables the web server.
(*) Default value.

Connections Tab

Each EtherNet/IP device has connections.

In the Devices tree, double-click an EtherNet/IP device and select the Connections tab.

Column	Comment
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)

To create a connection, click Add Connection.

To modify a connection, select a connection and click Edit Connection, or double-click it.

To remove a connection, select a connection and click Delete Connection.

EtherNet/IP I/O Mapping Tab

Variables can be defined and named in the EtherNet/IP I/O Mapping tab. Additional information such as topological addressing is also provided in this tab. For information and procedures necessary to configure the EtherNet/IP I/O Mapping, refer to the EcoStruxure Machine Expert Programming Guide.

Status

The description of the TM5 EtherNet/IP Fieldbus Interface status is as follows:

Reads the fieldbus interface status. 32 bits of information are available.
Bits 0 to 10 indicate error-free states; bits 11 to 31 indicate error states.
Individual states are also indicated by the LED status indicators on the fieldbus interface.

The following table shows bits, their values and description:

Bit	Value (hex)	Description
0	00000001	The adapter was configured using configuration assemblies.
1	00000002	System start or I/O module detection is done.
2	00000004	Fieldbus interface is not ready to start I/O module configuration.
3	00000008	Fieldbus interface I/O module configuration is in process.
4	00000010	All I/O module configuration is complete.
5	00000020	Ethernet/IP stack initialization is done.
6	00000040	Ethernet/IP stack configuration is done.
7…10	00000080...00000400	Reserved
11	00000800	Memory error
12	00001000	Flash data error while reading the primary flash memory page.
13	00002000	Firmware update error detected. The fieldbus interface is booting with the default firmware.
14	00004000	Missing module detected during boot phase
15	00008000	Incorrect module detected during boot phase.
16	00010000	The adapter has not yet received an IP address assignment from DHCP.
17	00020000	2 or more identical IP addresses exist in the network.
18	00040000	General EIP stack error
19	00080000	Communication resources: Limit reached
20	00100000	Stack socket error detected
21	00200000	Insufficient memory
22	00400000	Error detected while reading the primary flash memory page.
23	00800000	Incorrect configuration assembly data
24	01000000	“Scanner auto-connected” error
25	02000000	Corrupted firmware detected. The fieldbus interface is booting with the default firmware.
26	04000000	Error when generating the configuration
27	08000000	Configuration resource is locked
28…31	01000000…80000000	Reserved

You can also read the status information of the remote adapter with the FB_RemoteAdapter function block properties from the TM5BC EtherNetIP Remote Adapter library.

Name	Type	Initial	Value name	Comment
Status	USINT	0	Initializing	Initialization of the Remote Adapter
		1	Searching	Try to get connection to the Remote Adapter
		2	Configuring	Writing the user parameters
		3	Configured	Configuration applied successfully
		4	Aborted	Writing was aborted following the flag AbortIfError
		5	Error	Error detected (see property Errorinfo for more details)
		6	Disabled	Remote Adapter is disabled

The property ErrorInfo is a structure providing details about the error detected:

Name	Type	Initial	Value name	Comment
uiErrorNumber	USINT	0 hex...255 hex	CommunicationErrorCodes	Communication error codes
		256 hex... 1000 hex	OperationErrorCodes	Operation Error Codes = uiErrorNumber – 256 hex
		1001 hex	ConfigurationError	Configuration of the Remote Adapter not successful or incorrect configuration of the user parameters
		1002 hex	EipDataExchUnexpectedOuput	Unexpected reaction of the function block EipDataExch
		1003 hex	EipDataExchTimeoutExpired	Timeout of the function block EipDataExch
		1004 hex	ReadingUserParameterFailed	Reading a user parameter from the Remote Adapter not successful
		1005 hex	TimeoutStartConnection	Timeout while waiting for the health bit after starting the connections
		1006 hex... FFFF FFFF hex	-	Reserved
uiParameterNumber	USINT	-	-	Number of the parameter implied in the error detected

Profile

The controller supports the following objects:

Object class	Class ID (hex)	Number of Instances	Effect on Interface Behavior
Identity Object	01	1	Provides general information about the bus coupler.
Message Router Object	02	2	Provides message connection.
Assembly Object	04	2	Defines I/O data format.
Connection Manager Object	06	1	–
Bus Controller Object	64	2	–
Connection Object	F4	1	Displays connection properties.
TCP/IP Interface Object	F5	1	Displays TCP/IP configuration.
Ethernet Link Object	F6	1	Displays counter and status information for the IEEE 802.3 interface.

Common Class Attributes

The following table describes the class attributes of all supported object:

Attribute ID (hex)	Access	Data type	Description
1	Get	UINT	Object revision
2	Get	UINT	Largest instance number of the object generated in this class level
3	Get	UINT	Number of generated instances
4	Get	STRUCT of UINT	Number of optional attributes
4	Get	ARRAY of UINT	List of optional attribute numbers
5	Get	STRUCT of UINT	Number of optional services
5	Get	ARRAY of UINT	List of optional service codes
6	Get	UDINT	Largest possible ID number of class attributes
7	Get	UDINT	Largest possible ID number of instance attributes

Identity Object (Class ID = 01 hex)

The identity object provides identification and status information about the device or object.

The following table provides a general overview of the identity object:

Value (hex)	Description
1, 2, 3, 6, 7	Class attributes
1, E	Class services
1, 2, 3, 4, 5, 6, 7, 8	Instance attributes
1, 5, E	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description	Function
1	Get	UINT	`Vendor ID`	0377 hex (887)
2	Get	UINT	`Device type`	Default value: F3 hex (243) = Adapter device
3	Get	UINT	`Product code`	Hardware ID of the fieldbus interface. This is identical to the first four characters printed on the module's housing. Fieldbus interface code: 100A hex (4106)
4	Get	STRUCT of USINT	`Major revision`	ZZ = Firmware major revision
4	Get	STRUCT of USINT	`Minor revision`	YY = Firmware minor revision
5	Get	WORD	`Status`	Refer to status code table below.
6	Get	UDINT	`Serial number`	Identical to the seven characters on the module's housing after the hardware ID
7	Get	STRING	`Product name`	1C hex (length = 28) and hexadecimal equivalent of TM5 EtherNet/IP Fieldbus Interface TM5NEIP1
8	Get	USINT	`Status`	0 = Does not exist 1 = Device self-test 2 = Standby 3 = Operational 4 = Major recoverable error 5 = Major unrecoverable error 6 to 254 = Reserved

The following table describes the status codes of instance attribute 5:

Bit	Definition	Function
0	Owned by master (predefined scanner/adapter connection)	There is an owner for the device or object within the device. In the scanner/adapter paradigm, setting this bit means that a scanner has been assigned to a predefined scanner/adapter connection set.
1	-	Reserved, set to 0 by default.
2	Configured	The firmware is no longer set to the pre-configured default behavior. This does not include how communication is configured.
3	-	Reserved, set to 0 by default.
4…7	Extended device status (Refer to extended status codes table below)	The extended device status indicates whether the device is following the general definition for using this bit through the use of the `DeviceStatusAssembly` keyword in the [Device] section of the EDS file.
8	Minor recoverable error	The device has detected an error that appears to be recoverable. This detected error does not cause the device to enter into an error state.
9	Minor unrecoverable error	The device has detected an error that does not appear to be recoverable. This detected error does not cause the device to enter into an error state.
10	Major recoverable error	The device has detected an error that makes it to enter the "Major recoverable error".
11	Major unrecoverable error	The device has detected an error that makes it to enter the "Major unrecoverable error".
12-15	-	Reserved, set to 0 by default.

The following table describes the extended status codes of Bits 4-7 of instance attribute 5:

Bits 4…7	Definition
0000	Self-testing or unknown.
0001	Firmware update in progress.
0010	At least on unsuccessful I/O connection.
0011	No I/O connections established.
0100	Non-volatile configuration.
0101	Major error - either bit 10 or 11 is true.
0110	At least one I/O connection in run mode.
0111	At least one I/O connection established, all in idle mode.
1000…1001	Reserved, set to 0 by default.
1010…1111	Vendor or product specific.

The following table describes the identity services:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attribute_All`	Read all attributes
5	Instance	`Reset`	Reset factory default
E	Class/Instance	`Get_Attribute_Single`	Read one attribute

Message Router Object (Class ID = 02 hex)

The message router provides a message connection that can be used by a client to execute any class or instance services within a physical device.

The following table provides a general overview of the Message Router Object:

Value (hex)	Description
1, 2, 3, 4, 5, 6, 7	Class attributes
1, E	Class services
1, 2	Instance attributes
1, E	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description
1	Get	STRUCT of UINT	List of all supported objects
		STRUCT of UINT	Number of supported classes in class array
		ARRAY of UINT	List of supported class codes
2	Get	UINT	Maximum number of supported connections

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attribute_All`	Returns a list of object attributes
E	Class/Instance	`Get_Attribute_Single`	Supplies the contents of the corresponding attribute

Assembly Object (Class ID = 04 hex)

The assembly object unifies the attributes of various objects and allows data for each object to be transmitted or received using a single connection. The assembly object can be used for input and output data. The direction is considered from the network perspective.

The following table provides a general overview of the assembly object:

Value (hex)	Description
1, 2, 3, 6, 7	Class attributes
1, E	Class services
3	Instance attributes
E, 10	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description
3	Set	ARRAY OF BYTE	Data

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
E	Class/Instance	`Get_Attribute_Single`	Supplies the contents of the corresponding attribute
10	Instance	`Get_Attribute_Single`	Modifies the value of an attribute

Connection Manager Object (Class ID = 06 hex)

The connection manager object is used for connected and connectionless communication using various subnetworks.

The following table provides a general overview of the connection manager object:

Value (hex)	Description
1, 2, 3, 4, 6, 7	Class attributes
1, E	Class services
1, 2, 3, 4, 5, 6, 7, 8	Instance attributes
1, E, 4E, 52, 54	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description
1	Set ⁽¹⁾	UINT	Number of forward open service requests received.
2	Set ⁽¹⁾	UINT	Number of forward open service requests which were rejected due to incorrect format.
3	Set ⁽¹⁾	UINT	Number of forward open service requests which were rejected due to lack of resources.
4	Set ⁽¹⁾	UINT	Number of forward open service requests that were not rejected due to an invalid format or insufficient resources.
5	Set ⁽¹⁾	UINT	Number of received forward close service requests.
6	Set ⁽¹⁾	UINT	Number of forward close service requests which were rejected due to incorrect format.
7	Set ⁽¹⁾	UINT	Number of forward close service requests which were rejected for reasons other than incorrect format.
8	Set	UINT	Total number of connection timeouts that have occurred in connections controlled by this connection manager.
(1) A device can refuse the Set request to this attribute if the transmitted attribute value is not zero. In this case, it transmits the general status code 09 hex (invalid attribute value).

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attribute_All`	Returns a predefined list of object attributes
E	Class/Instance	`Get_Attribute_Single`	Returns the contents of the corresponding attributes
4E	Instance	`Forward_Close`	Closes a connection
52	Instance	`Unconnected_Send`	Unconnected transmit service
54	Instance	`Forward_Open`	Opens a connection, maximum data size is 511 bytes

Bus Controller Object (Class ID = 64 hex)

The bus controller object is used to configure all global bus controller parameters. All I/O module parameters are managed individually using the I/O module object.

The following table provides a general overview of the bus controller object:

Value (hex)	Description
1, 2	Class attributes
E	Class services
1, 2, 3, 5, 6, 7, 8, 9, A, B, 20, 21, 22, 23, 24, 25, 26, 27, 40, 41, 42, 43, 44, 45, 46, 60, 61, 62, 63, 64, 65, 66, 67, 68, 80, 81, E0, E1, E2, E3, E4, E5, E6	Instance attributes
10, 32, 33, 34, 34, 35, 36, 37, 38, 40, 41, 42, E	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description
1	Get	UDINT	Adapter status
2	Get	UINT	Hardware major revision
3	Get	UINT	Hardware minor revision
4	Get	UINT	FPGA hardware revision
5	Get	UINT	Active boot block
6	Get	UINT	Default firmware major revision
7	Get	UINT	Default firmware minor revision
8	Get	UINT	Update firmware major revision
9	Get	UINT	Update firmware minor revision
A	Get	UINT	Default FPGA software revision
B	Get	UINT	Update FPGA software revision
20	Get	UINT	Number of modules
21	Get	UINT	Length of the analog input data in bytes
22	Get	UINT	Length of the analog output data in bytes
23	Get	UINT	Length of the digital input data in bytes
24	Get	UINT	Length of the digital output data in bytes
25	Get	UINT	Length of the X2X network status information in bytes
26	Get	UINT	Length of the output status information in bytes
27	Get	UINT	Highest X2X station number currently in use
40	Set/Get	UINT	Size of the analog input assembly in bytes (AI)
41	Set/Get	UINT	Size of the analog output assembly in bytes (AO)
42	Set/Get	UINT	Size of the digital input assembly in bytes (DI)
43	Set/Get	UINT	Size of the digital output assembly in bytes (DO)
44	Set/Get	UINT	Size of the X2X network status assembly in bytes (NS)
45	Set/Get	UINT	Size of the output status assembly in bytes (OS)
46	Set/Get	UINT	Composition of the combination input assembly
60	Set/Get	UINT	Global action delay time (ms)
61	Set/Get	UINT	Communication loss (timeout) action
62	Set/Get	UINT	Communication loss (timeout) scope
63	Set/Get	UINT	Communication loss (timeout) reset mode
64	Set/Get	UINT	Program mode (idle) action
65	Set/Get	UINT	Program mode (idle) scope
66	Set/Get	UINT	Action for an inoperable module or a missing module in state “Operational”
67	Set/Get	UINT	Action for missing module(s) during the boot phase
68	Set/Get	UINT	Action for incorrect module type(s) during the boot phase
80	Set/Get	UINT	X2X Link configuration
81	Set/Get	UINT	X2X cable length (m)
E0	Get	UINT	Reading network address switches
E1	Set/Get	UINT	Module initialization delay (ms)
E2	Set/Get	UINT	Enable/disable the Telnet password
E3	Set/Get	UINT	IP maximum transmission unit (bytes)
E4	Get	UINT	Current boot configuration assembly ID
E5	Get	UINT	Read the number of configured I/O modules

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
E	Class/Instance	`Get_Attribute_Single`	Supplies the contents of the corresponding attribute.
10	Instance	`Get_Attribute_Single`	Modifies the value of an attribute.
32	Class/Instance	–	Resets any pending timeout.
33	Instance	–	Saves all system data to flash memory. This permanently stores changes to volatile flash memory that have not been stored there automatically by other services.
34	Instance	–	Reads any system data from flash memory. This overwrites any changes in RAM with the permanently saved settings.
35	Instance	–	Deletes the entire flash memory. This restores the default settings.
36	Instance	–	Reinitializes all assemblies.
37	Instance	–	Enables one or more extended configuration assemblies. The specified parameter makes it possible to generate several independent figurations in the 10 assemblies. This can be used to enable the desired configuration with the corresponding start assembly ID. All 10 assemblies for a single configuration can also be used.
38	Instance	–	Clears I/O modules configuration data from RAM. Flash memory is not cleared.
40	Instance	–	Generates a new configuration based on an existing configuration or the non-connected I/O modules. This includes both configured and non configured I/O modules. Bit 0: the configuration is compressed in ZIP format Bit 1: The EtherNet/IP stack configuration assemblies are written Bit 2: All data generated is stored in flash memory Bit 3: The configuration is applied to the I/O module register
41	Instance	–	Clears the parameter list for I/O modules.
42	Instance	–	Applies the parameter list to existing configurations. This changes all existing configurations. The result is stored in the volatile memory of the RAM.

Connection Object (Class ID = F4 hex)

The connection object describes the CIP connections present on the device.

The following table provides a general overview of the connection object:

Value (hex)	Description
1, 2, 3, 6, 7	Class attributes
8, 9	Extended class attributes
1, E	Class services
1, 2, 3, 4, 7	Instance attributes
1, E	Instance services

The following table describes the extended class attributes:

Attribute ID (hex)	Access	Data type	Description	Default Value
8	Get	UINT	Instance of the connection object that describes the connection object and was used to send this request to the device.	–
9	Get	ARRAY OF STRUCT	Array of structures that contain the instances attributes 1 and 2 for each instance.	⁽¹⁾
		UINT	Enumerates the connection types.	Refer to instance attributes below.
		UINT	CIP connection number that is linked to this connection.	Refer to instance attributes below.
(1) The index of the array is determined by the instance number, from 1 to the maximum number of instances. The value at index 1 (offset 0) and non-instanced instances set to 0.

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description	Function
1	Get	UINT	Enumerates the possible connection types. All connection types with the exception of 0 indicate routing-capable connections of the corresponding type.	0: Connection does not support CIP routing. Attribute 2 is ignored 1 Reserved to preserve compatibility with existing protocols 2: ControlNet 3: ControlNet redundant 4: EtherNet/IP 5: DeviceNet 6 - 99: Reserved 100 - 199: Manufacturer-specific 200: CompoNet 201: Modbus TCP 202: Modbus SL 203: SERCOS III 204: - 65534: Reserved 65535: Not configured
2	Get	UINT	CIP connection number that is linked to this connection. This attribute is ignored if the connection type = 0.	Manufacturer assigns a unique value to identify each communication port. Value 1 is defined for internal product use (i.e. backplane). Value 0 is reserved and cannot be used.
3	Get	STRUCT
		UINT	Number of 16-bit words in the following path.	Range = 2 to 6
		Padded EPATH	Logical path segment that identifies the object for this port.	The path consists of one logical class segment and one logical instance segment. The maximum size is 12 bytes.
4	Get	SHORT_STRING	Name of the physical network port.	"Port A", for example. The maximum number of characters is 64. This name must be different for each physical port. If several CIP ports use the same physical port, the same physical name must be used.
7	Get	Padded EPATH	Rotary switch value	The switch value identical to attribute 2.

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attributes_All`	Returns a predefined list of object attributes.
E	Class/Instance	`Get_Attribute_Single`	Returns the contents of the corresponding attributes.

TCP/IP Interface Object (Class Code = F5 hex)

The TCP/IP interface object provides a mechanism for configuring the TCP/IP network of the fieldbus interface.

The following table provides a general description of the TCP/IP interface object:

Value (hex)	Description
1, 2, 3, 6, 7	Class attributes
1, E	Class services
1, 2, 3, 4, 5, 6	Instance attributes
1, 2, E, 10	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description	Function
1	Get	DWORD	`Interface status`	Refer to interface status table below
2	Get	DWORD	`Interface configuration properties`	0: BOOTP Client 1: DNS Client 2: DHCP Client 3: DHCP DNS update 4: Configured in EcoStruxure Machine Expert 5-31: Reserved
3	Set	DWORD	`Interface control flags`	0: The software configuration is obtained by reading the internal flash memory 1: The software configuration is obtained with BOOTP 2: The software configuration is obtained with DHCP 3-15: reserved
4	Get	STRUCT	Path to the physically linked object	The path identifies the object that is connected to the underlying physical communication object.
		UINT	Length of the path	Number of 16 bits word in the element path.
		EPATH	Logical segments that identify the physical link	The path addresses to the internal port of the built-in 3-port switch.
5	Get	STRUCT	`TCP/IP network interface configuration`	Contains TCP/IP configuration parameters. In order to avoid incomplete or incompatible configurations, parameters cannot be set individually.
		UDINT	`IP address`	This value is 0 if an IP address has not been configured. Otherwise, a valid class A, B or C address is given. Example: 0164A8C0 hex (corresponds to 192.168.100.1)
		UDINT	`Network mask`	This value is 0 if a network mask has not been configured. Example: 00FFFFFF hex (corresponds to 255.255.255.0)
		UDINT	`Gateway address`	This value is 0 if a gateway address has not been configured. Otherwise, a valid class A, B or C address is given. Example: FE64A8C0 hex (corresponds to 192.168.100.254)
		UDINT	`Primary name server`	The value 0 indicates that a primary name server has not been configured. Otherwise, a valid class A, B or C address is given.
		UDINT	`Secondary server`	The value 0 indicates that a secondary name server has not been configured. Otherwise, a valid class A, B or C address is given.
		STRING	`Domain name`	ASCII characters. The maximum length is 48 characters. They are filled to an even number (filler byte not included in the length). The length is 0 if a domain name has not been configured.
6	Get	STRING	`Hostname`	ASCII characters. The maximum length is 64 characters. They are filled to an even number (filler byte not included in the length). The length is 0 if a domain name has not been configured.

The following table provides the interface status of attribute 1:

Bit	Name	Description
0…3	`Interface configuration status`	0: The software configuration attribute has not been configured. 1: The software configuration contains a valid configuration for BOOTP, DHCP or non volatile memory. 2: The software configuration contains a valid configuration for hardware settings such as a thumbwheel switch, handwheel, etc. 3-15: Reserved
4	`Mcast pending`	Indicates a pending configuration change in the TTL value and/or Mcast configuration attribute. This bit is set if either the TTL value or Mcast configuration attribute is set and deleted the next time the device is started.
5…31	`Reserved`	Reserved

The following table describes the service objects:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attribute_All`	Returns a predefined list of object attributes.
2	Instance	`Set_Attribute_All`	Modifies all modifiable attributes.
E	Class/Instance	`Get_Attribute_Single`	Returns the content of the corresponding attributes.
10	Instance	`Set_Attribute_Single`	Modifies an individual attribute value.

Ethernet Link Object (Class ID = F6 hex)

The Ethernet link object manages connection-specific counters and status information.

The following table provides a general overview of the Ethernet link object:

Value (hex)	Description
1, 2, 3, 6, 7	Class attributes
1, E	Class services
1, 2, 3	Instance attributes
1, E	Instance services

The following table describes the instance attributes:

Attribute ID (hex)	Access	Data type	Description	Function
1	Get	UDINT	Transfer rate in use	Speed in Mbps (for instance 0, 10, 100, 1000, etc.)
2	Get	DWORD	Interface status flag	Refer to interface status table below
3	Get	ARRAY [0...5] of USINT	Physical address	Device-specific MAC address

The following table describes the status codes of the interface status flag:

Bit	Name	Description
0	`Connection status`	Indicates whether the communication interface is connected to an active network. 0: Indicates an inactive link. 1: Indicates an active link.
1	`Full-/Half-duplex`	Indicates the duplex mode in use. 0: Indicates that the interface is running half duplex. 1: Indicates full duplex. This flag is undefined if the connection status flag is 0.
2…4	`Auto-negotiation Status`	Indicates the status of auto-negotiation. 0: Auto-negotiation in progress 1-2: Auto-negotiation and speed detection not successful. 3: Successfully negotiated speed and duplex. 4: Auto-negotiation not attempted. Forced speed and duplex.
5	`Manual Setting Require Reset`	Indicates the change mode required. 0: The interface can activate changes to link parameters (auto-negotiate, duplex mode, interface speed) automatically. 1: The device requires a reset service be issued to its identity object in order for the changes to take effect.
6	`Local Hardware Error`	Indicates whether a local error is detected. 0: Indicates that the interface detects no local hardware error 1: Indicates that a local hardware error is detected. The meaning of this is product-specific.
7…31	`Reserved`	Reserved. Set to 0 by default.

The following table describes the instance service objects:

Service code (hex)	Supported by	Service name	Description
1	Class/Instance	`Get_Attribute_All`	Returns a predefined list of object attributes.
E	Class/Instance	`Get_Attribute_Single`	Provides the contents of the corresponding attribute.