Safety Logic Controller Memory Key

Presentation

A memory key is required for operation of the Safety Logic Controller, and is sold separately.

The table below presents the reference for the memory key:

Reference

Description

Color

TM5ACSLCM8FS

Safety Logic Controller memory key, 8 Mb

Gray and red

Functions of the Memory Key

The memory key is required to load the program, parameters and configuration into the Safety Logic Controller when it boots up. In addition, you can use the key to store the program, the parameters, and the system configuration and transfer the data to another Safety Logic Controller.

The memory key is equipped with a mechanical locking mechanism to help prevent removal during operation:

Locking mechanism

Unlocked memory key:

Locked memory key:

First Insertion and Confirmation of the Memory Key

Before applying power to the Safety Logic Controller for the first time, you have to insert the memory key.

To confirm the first insertion of a memory key, proceed as follows:

Step

Action

Result

1

Ensure that the Safety Logic Controller is not under power.

-

2

Insert the memory key in the Safety Logic Controller and apply power to the Safety Logic Controller.

The FW-ACKN LED illuminates.

3

Move the selection switch to SK-XCHG and press the confirmation button.

The ENTER LED illuminates. The memory key insertion is confirmed.

4

Engage the mechanical locking mechanism.

-

5

Open EcoStruxure Machine Expert - Safety, connect to the Safety Logic Controller and set a new password for the Safety Logic Controller (refer to EcoStruxure Machine Expert - Safety User Guide).

NOTE: To allow the connection between EcoStruxure Machine Expert - Safety and the Safety Logic Controller via the Sercos bus, appropriate Ethernet settings have to be applied on the standard controller. Refer to the M262 Programming Guide, chapter Ethernet Services for information on IP forwarding settings. For PacDrive, refer to the User Guide How to Configure the Firewall for PacDrive LMC Controllers. The CommonToolbox Library Guide provides information on related IEC application functions.

6

Download your valid safety-related application on the Safety Logic Controller (refer to EcoStruxure Machine Expert - Safety User Guide).

-

7

Execute a complete validation of the Safety Logic Controller functional safety system.

-

 WARNING
UNINTENDED EQUIPMENT OPERATION
  • Ensure that the Safety Logic Controller is stopped before attempting to insert or remove the memory key.
  • Carefully verify that the loaded safety application is the one that was intended for the particular system each time the memory key is used (inserted/replaced).
  • Conduct a complete functional test of the system, composed of the Safety Logic Controller plus all input and output hardware connected to it, after using the memory key to overwrite your safety-related application.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
NOTE: You can verify your safety-related application by examining the project CRC and the date that were saved with the application on the memory key. For more information, refer to the EcoStruxure Machine Expert - Safety User Guide.

Removing a Memory Key

Removing a memory key results in a boot status change and a disabling of the safety-related functions:

  • TM5CSLC100FS / TM5CSLC200FS: The LED indicators F, I and L illuminate.

  • TM5CSLC300FS / TM5CSLC400FS: The LED indicator FS-STATUS illuminates and turns off shortly every second (sequence 900 ms on, and 100 ms off).

In addition, removing the memory key during operation can corrupt the data on the memory key.

 WARNING
INTERRUPTION OF SAFETY-RELATED FUNCTION AND POSSIBLE LOSS OF MEMORY KEY DATA
  • Do not remove the memory key when the Safety Logic Controller is in a RUN state.
  • Engage the locking mechanism while the key is inserted in the Safety Logic Controller.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

To remove the memory key, proceed as follows:

Step

Action

1

Ensure that the Safety Logic Controller is STOPPED or that power has been removed.

2

Disengage the mechanical locking mechanism.

3

Pull the memory key out of the Safety Logic Controller.

NOTE: The Safety Logic Controller requires a valid memory key to operate.

Copying to a Memory Key

Copying to a memory key is a function that allows you to copy the configuration data from the Safety Logic Controller to another memory key. The application and parameters are not copied to the memory key.

Pre-requisite 1: The Safety Logic Controller is operational, therefore, with an existing memory key.

Pre-requisite 2: You have another memory key, already containing an application valid for the present Safety Logic Controller.

To transfer the configuration data to another memory key, proceed as follows:

Step

Action

Result/Comment

1

Set the selection switch to SK-COPY position and press the confirmation button.

NOTE: Refer to Logic Processor Selection Switch and Confirmation Button.

Result: The ENTER LED illuminates and the SKEY LED flashes. The existing memory key configuration data is saved to an internal, temporary file on the Safety Logic Controller to be later transferred to the other memory key, and the FW-ACKN LED flashes when the action is completed.

2

Dis-engage the mechanical locking mechanism and replace the existing memory key by the other memory key.(1)

NOTE: Do not move the selection switch. It remains on the position SK-COPY.

A maximum of 30-second delay is provided for this step. The FW-ACKN LED flash frequency increases after 20 seconds to signal the end of that delay.

3

Press the confirmation button(2).

The internal, temporarily saved configuration file is transferred to the memory key.

4

Move the selection switch to SK-XCHG and press the confirmation button.

Result: The ENTER LED illuminates. The memory key replacement is confirmed.

5

Engage the mechanical locking mechanism.

-

6

Execute a complete validation of the Safety Logic Controller functional safety system.

-

(1) If no memory key is inserted after 30 seconds, the Safety Logic Controller switches to boot status.

  • TM5CSLC100FS / TM5CSLC200FS: The LED indicators F, I and L illuminate.

  • TM5CSLC300FS / TM5CSLC400FS: The LED indicator FS-STATUS illuminates and turns off shortly every second (sequence 900 ms on, and 100 ms off).

(2) If the other memory key is not acknowledged after 30 seconds, the function ends, that is, in case the function is triggered inadvertently, the copy function ends automatically after 30 seconds.

 WARNING
UNINTENDED EQUIPMENT OPERATION
  • Ensure that the Safety Logic Controller is stopped before attempting to insert or remove the memory key.
  • Carefully verify that the loaded safety application is the one that was intended for the particular system each time the memory key is used (inserted/replaced).
  • Conduct a complete functional test of the system, composed of the Safety Logic Controller plus all input and output hardware connected to it, after using the memory key to overwrite your safety-related application.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
NOTE: You can verify your safety-related application by examining the project CRC and the date that were saved with the application on the memory key. For more information, refer to the EcoStruxure Machine Expert - Safety User Guide.

Confirming Memory Key Insertion

The following procedure authorizes the safety-related application stored on the memory key to be used with the Safety Logic Controller. In addition, after confirmation, the application on the memory key is compared with that in execution memory, and if they are different, the application on the memory key is transferred to the Safety Logic Controller.

To confirm the insertion of a memory key, proceed as follows:

Step

Action

Result

1

Ensure that the Safety Logic Controller is STOPPED.

-

2

Insert the memory key in the Safety Logic Controller.

NOTE: The Safety Logic Controller requires a valid memory key to operate.

The FW-ACKN LED illuminates.

3

Move the selection switch to SK-XCHG and press the confirmation button.

The ENTER LED illuminates. The memory key replacement is confirmed.

4

Engage the mechanical locking mechanism.

-

5

Execute a complete validation of the Safety Logic Controller functional safety system.

-

 WARNING
UNINTENDED EQUIPMENT OPERATION
  • Ensure that the Safety Logic Controller is stopped before attempting to insert or remove the memory key.
  • Carefully verify that the loaded safety application is the one that was intended for the particular system each time the memory key is used (inserted/replaced).
  • Conduct a complete functional test of the system, composed of the Safety Logic Controller plus all input and output hardware connected to it, after using the memory key to overwrite your safety-related application.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
NOTE: You can verify your safety-related application by examining the project CRC and the date that were saved with the application on the memory key. For more information, refer to the EcoStruxure Machine Expert - Safety User Guide.

Use Cases for Copying to a Memory Key

Use Case

Description

Exchange the safety-related application in the controller without using EcoStruxure Machine Expert - Safety

You can update a safety-related application using a second memory key containing the new application and parameters (for example prepared by Machine Expert - Safety Design Engineer).

  • Use the copy function to copy the configuration data of the old memory key temporarily on the Safety Logic Controller.

  • After connecting the new memory key, the configuration data of the old memory key is copied to the new memory key with the new safety-related application.

Create a memory key backup with same configuration data without using EcoStruxure Machine Expert - Safety

The copy function allows you to create a copy or backup of the memory key data.

  • In this case, both memory keys must already contain the same safety-related application and parameters.

  • After executing the copy function, both memory keys have also the same configuration stored.

This memory key backup can then be used in the event the original memory key becomes defective.

Creating a Memory Key Backup

The procedure described in Copying to a Memory Key can also be used to create a memory key backup by using a second memory key with an identical safety-related application. After executing the procedures, two identical memory keys are available.

Formatting the Memory Key

The following procedure allows you to format the memory key. Only use this procedure if your firmware update was not successful or the memory has a detected error.

A formatting of the memory key deletes the memory key data, including your password.

NOTICE
LOSS OF MEMORY KEY DATA
  • Create a memory key backup before formatting the memory key.
  • Connect to the EcoStruxure Machine Expert - Safety software to assign a new password.
Failure to follow these instructions can result in equipment damage.

To format the memory key, proceed as follows:

Step

Action

Comment / Result

1

Ensure that the Safety Logic Controller is stopped.

-

2

TM5CSLC100FS / TM5CSLC200FS:

Move the selection switch to the unlabeled position between SK-XCHG and FW-ACKN.

TM5CSLC300FS / TM5CSLC400FS:

Move the selection switch to SK-FORMAT.

3

Press the confirmation button for a minimum of 20 s to a maximum of 30 s to receive a confirmation.

After 20 s, the ENTER LED illuminates.

NOTE:

  • When you have released the confirmation button, the ENTER LED remains illuminated for another 0.8 seconds.

  • When you press the confirmation button for less than 20 s, it has no effect.

  • When you press the confirmation button for longer than 30 s, the ENTER LED flashes for 5 s to display a detected error.

Result: The LEDs will indicate that there is no valid application on the key

4

Follow the procedures necessary to add a valid application to the key.

-