Protocol Manager Operating Modes

Protocol Manager States

To manage the operating modes of the devices, protocol manager is composed by EtherNet/IP Scanner.

The protocol manager state defines the behavior of the different devices in the device network. For each state, monitoring information (health bit, communication states, and so on) is specific.

The scanners states depend on the controller state:

Controller state	EtherNet/IP Scanner state
EMPTY	IDLE
CONFIGURED	STOPPED
STOPPED	OPERATIONAL
HALT	OPERATIONAL with a specific behavior
RUNNING	OPERATIONAL
RUNNING with breakpoint	OPERATIONAL with a specific behavior

Controller EMPTY State

TCP/IP connections are closed.

Device states are managed according to their individual mode of operation.

The EtherNet/IP Scanner is not created (IDLE state).

Therefore, health bits and I/O images are not available.

Controller CONFIGURED State

TCP/IP connections are closed.

Controller enters in CONFIGURED state after:

oan application load.

oa reset (cold/warm) command sent by EcoStruxure Machine Expert.

The EtherNet/IP Scanner is in STOPPED state, all connections with the targets are closed.

Controller STOPPED State

The EtherNet/IP Scanner remains in OPERATIONAL state. All Originator/Target connections remain active. The data exchange between the targets and the scanner continues.

This table presents the EcoStruxure Machine Expert variables for EtherNet/IP Scanner:

Variable	Value	Comments
Input image	Read value	Values are refreshed synchronously with the task which drives the EtherNet/IP Scanner.
Output image	Last written value or default value	Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter). Output values may not reflect the actual state of the output thereafter. Refer to transfer format of the connection.

Variable

Value

Comments

Input image

Read value

Values are refreshed synchronously with the task which drives the EtherNet/IP Scanner.

Output image

Last written value or default value

Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter).

Output values may not reflect the actual state of the output thereafter.

Refer to transfer format of the connection.

WARNING

OUTPUT VALUES IN MEMORY MAY BE DIFFERENT THAN THEIR PHYSICAL STATE

Do not rely on the memory values for the state of the physical outputs when the controller is not in the RUNNING state.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Controller HALT State

This table presents the EcoStruxure Machine Expert variables for EtherNet/IP Scanner if the task in HALT is the EtherNet/IP bus cycle task (by default the MAST):

Variable	Value	Comments
Input image	Last read value	Input values are those when the controller entered the HALT state and therefore may not reflect the actual state of the input thereafter.
Output image	Last written value or default value	Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter). Output values may not reflect the actual state of the output thereafter.

Variable

Value

Comments

Input image

Last read value

Input values are those when the controller entered the HALT state and therefore may not reflect the actual state of the input thereafter.

Output image

Last written value or default value

Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter).

Output values may not reflect the actual state of the output thereafter.

This table presents the EcoStruxure Machine Expert variables for EtherNet/IP Scanner if the task in HALT is another task:

Variable	Value	Comments
Input image	Last read value	Values are refreshed synchronously with the task which drives the EtherNet/IP Scanner.
Output image	Last written value or default value	Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter). Output values are overwritten each cycle. Output values may not reflect the actual state of the output thereafter. Refer to the transfer format of the connection. Online modifications on output are not available.

Variable

Value

Comments

Input image

Last read value

Values are refreshed synchronously with the task which drives the EtherNet/IP Scanner.

Output image

Last written value or default value

Outputs are set to their default value or maintained in their current value (depends on the Behavior for outputs in Stop parameter).

Output values are overwritten each cycle.

Output values may not reflect the actual state of the output thereafter.

Refer to the transfer format of the connection.

Online modifications on output are not available.

WARNING

OUTPUT VALUES IN MEMORY MAY BE DIFFERENT THAN THEIR PHYSICAL STATE

Do not rely on the memory values for the state of the physical outputs when the controller is not in the RUNNING state.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Controller RUNNING State

TCP/IP connections are open.

Slave devices are managed by the controller.

This table presents the EcoStruxure Machine Expert variables:

Variable	Value	Comments
Health bit value	0...1	0: No reply from the device before the timeout expired. 1: Requests are sent and replied before the timeout expires.
Input image	Last read value	Values are refreshed synchronously with the task which drives the scanners.
Output image	Last written value	Values are managed by the application.

Variable

Value

Comments

Health bit value

0...1

0: No reply from the device before the timeout expired.

1: Requests are sent and replied before the timeout expires.

Input image

Last read value

Values are refreshed synchronously with the task which drives the scanners.

Output image

Last written value

Values are managed by the application.

Controller RUNNING with Breakpoint State

TCP/IP connections are open.

Slave devices are managed by the controller.

This table presents the EcoStruxure Machine Expert variables for EtherNet/IP Scanner if the task in RUNNING with breakpoint is the EtherNet/IP bus cycle task (by default the MAST):

Variable	Value	Comments
Input image	Last read value	Input values are those when the controller entered the RUNNING with breakpoint state and therefore may not reflect the actual state of the input thereafter.
Output image	Last written value or default value	Outputs are maintained in their current value. Output values may not reflect the actual state of the output thereafter.

Variable

Value

Comments

Input image

Last read value

Input values are those when the controller entered the RUNNING with breakpoint state and therefore may not reflect the actual state of the input thereafter.

Output image

Last written value or default value

Outputs are maintained in their current value.

Output values may not reflect the actual state of the output thereafter.

This table presents the EcoStruxure Machine Expert variables for EtherNet/IP Scanner if the task in RUNNING with breakpoint is another task:

Variable	Value	Comments
Input image	Last read value	Input values are those when the controller entered the RUNNING with breakpoint state and therefore may not reflect the actual state of the input thereafter.
Output image	Last written value or default value	Outputs are maintained in their current value. Output values may not reflect the actual state of the output thereafter. Refer to the transfer format of the connection.

Variable

Value

Comments

Input image

Last read value

Input values are those when the controller entered the RUNNING with breakpoint state and therefore may not reflect the actual state of the input thereafter.

Output image

Last written value or default value

Outputs are maintained in their current value.

Output values may not reflect the actual state of the output thereafter.

Refer to the transfer format of the connection.

WARNING

OUTPUT VALUES IN MEMORY MAY BE DIFFERENT THAN THEIR PHYSICAL STATE

Do not rely on the memory values for the state of the physical outputs when the controller is not in the RUNNING state.

Failure to follow these instructions can result in death, serious injury, or equipment damage.