SD Card

Overview

When handling the SD card, follow the instructions below to help prevent internal data on the SD card from being corrupted or lost or an SD card malfunction from occurring:

NOTICE
LOSS OF APPLICATION DATA
  • Do not store the SD card where there is static electricity or probable electromagnetic fields.
  • Do not store the SD card in direct sunlight, near a heater, or other locations where high temperatures can occur.
  • Do not bend the SD card.
  • Do not drop or strike the SD card against another object.
  • Keep the SD card dry.
  • Do not touch the SD card connectors.
  • Do not disassemble or modify the SD card.
  • Use only SD cards formatted using FAT or FAT32.
Failure to follow these instructions can result in equipment damage.

The M241 Logic Controller does not recognize NTFS formatted SD cards. Format the SD card on your computer using FAT or FAT32.

When using the M241 Logic Controller and an SD card, observe the following to avoid losing valuable data:

  • Accidental data loss can occur at any time. Once data is lost it cannot be recovered.

  • If you forcibly extract the SD card, data on the SD card may become corrupted.

  • Removing an SD card that is being accessed could damage the SD card, or corrupt its data.

  • If the SD card is not positioned correctly when inserted into the controller, the data on the card and the controller could become damaged.

NOTICE
LOSS OF APPLICATION DATA
  • Backup SD card data regularly.
  • Do not remove power or reset the controller, and do not insert or remove the SD card while it is being accessed.
Failure to follow these instructions can result in equipment damage.

The following figure shows the SD card slot:

It is possible to set the Write-Control Tab to prevent write operations to the SD card. Push the tab up, as shown in the example on the right-hand side, to release the lock and enable writing to the SD card. Before using an SD card, read the manufacturer's instructions.

Step

Action

1

Insert the SD card into the SD card slot:

2

Push until you hear it “click”:

SD Card Slot Characteristics

Topic

Characteristics

Description

Supported type

Standard Capacity

SD (SDSC)

High Capacity

SDHC

Global memory

Size

16 GB max.

TMASD1 Characteristics

Characteristics

Description

Card removal durability

Minimum 1000 times

File retention time

10 years @ 25 °C (77 °F)

Flash type

SLC NAND

Memory size

256 MB

Ambient operation temperature

–10 … +85°C (14...185 °F)

Storage temperature

–25 … +85°C (–13...185 °F)

Relative humidity

95% max. non-condensing

Write/Erase cycles

3,000,000 (approximately)

Status LED

The following figure shows the status LEDs:

The following table describes the SD card status LED:

Label

Description

LED

Color

Status

Description

SD

SD card

Green

On

Indicates that the SD card is being accessed.

Off

Indicates no access.