Hello,
Does anyone know what is the procedure to replace battery in PCD4.m11 saia controller ?
Regards

 

According to: https://sbc-support.com/uploads/tx_srcproducts/26-734_EN_Manual_PCD4_02.pdf

"Batteries can be changed while the supply is connected, without loss of data and in all operating modes. The battery box is located beneath the nameplate (see also PCD4.M170, Changing batteries)."

 

Remove the battery&ram holder from the cpu while energised. Remove the Varta battery in 30 seconds. Then place it. Thats all.

If you can access to the battery with removing the cover only, you can change it without time limit (if system is energised)