If an EEPROM is not present, will replacing the battery delete the program stored in the SLC?
If I recall correctly, there is a capacitor in place to ensure that the program remains intact for up to 30 minutes even when the battery is disconnected, such as when replacing it. It is advisable to back up the program before attempting any changes in case the capacitor has malfunctioned. It is worth noting that the presence or absence of EEPROM does not impact the loss of the program; however, with EEPROM, the program can be reloaded without having to reconnect it if properly configured. Nonetheless, current data values and any changes made since the last update to EEPROM will still be lost.
In general, there is no problem. However, if the internal electronics responsible for charging the capacitor malfunctions, there is a high likelihood of losing the program when the battery is disconnected. It is advisable to go online and save the program to the PLC to prevent data loss. Over the past 38 years, this issue has occurred four times, particularly in 2019 and 2020. By regularly backing up the programs and saving the PLC program with the latest data, you can avoid potential losses. - James
Absolutely, if your SLC (Stored Logic Controller) relies on a battery-backed RAM to maintain the program memory, then replacing or removing the battery will result in a loss of the program. EEPROM (Electrically Erasable Programmable Read-Only Memory) on the other hand, retains the information even without power. It's always recommended to regularly backup your data or program especially when it is stored in a volatile memory.
Actually, replacing the battery won't affect the program stored in an SLC, if it's a standalone version. The program is stored in the SLC's flash memory which isn't battery-dependent. However, volatile data like the status of retained tags might get lost during a power outage or when changing the battery. It's always good to do a backup to guard against any unexpected circumstances.
Actually, if an EEPROM (Electrically Erasable Programmable Read-Only Memory) isn't present in your SLC (Small Logic Controller), replacing the battery won't have any impact on the program already stored. EEPROMs are non-volatile, meaning they keep data intact without power. However, many SLCs use volatile memory, which does need constant power supply to retain the information. Therefore, it’s not about the battery being changed, but rather the type of memory the SLC uses to store its programming.
No, the program stored in an SLC (Single-Level Cell) won't be deleted by replacing the battery. It's not dependent on the EEPROM (Electrically Erasable Programmable Read-Only Memory) either. The contents of an EEPROM and an SLC NAND flash memory are non-volatile, meaning they retain their information even when the power is turned off or if the battery is replaced. The program in your SLC is stored in flash memory, so you shouldn't lose any data during a battery change.
Great question! If there's no EEPROM and you replace the battery on a device using SLC (Single-Level Cell) storage, the program should remain intact as long as the SLC flash memory hasn't been corrupted or erased in the process. However, it’s always best to check the device's specifications, as some designs might have non-volatile memory settings that could be affected during a battery swap.
✅ Work Order Management
✅ Asset Tracking
✅ Preventive Maintenance
✅ Inspection Report
We have received your information. We will share Schedule Demo details on your Mail Id.
Answer: 1. Will replacing the battery on an SLC 5/05 delete the program if the EEPROM is absent? - No, replacing the battery on an SLC 5/05 will not delete the program even if the EEPROM is absent. The program is stored in the processor's memory, not the EEPROM.
Answer: - Having an EEPROM present is not necessary when replacing the battery on an SLC 5/05. The program is retained in the processor's memory and will not be deleted during battery replacement.
Answer: - When replacing the battery on an SLC 5/05, ensure that power is properly shut off to avoid any data loss. Additionally, it is recommended to have a backup of the program stored externally for added safety.
Join hundreds of satisfied customers who have transformed their maintenance processes.
Sign up today and start optimizing your workflow.