MITSUBISHI ELECTRIC F940GOT-SWD-E - Manual (Page 20)

F940GOT-SWD-E/LWD-E INTRODUCTION 1.
1-12
8) Battery PM-20BL (spare part)
This is used to back up the alarm history data, the real-time
clock, etc.
This is attached when the GOT is delivered.
9) EPROM memory to store the user screen data FX-EPROM-
4M
This is an optional EPROM memory (M27C4002-**F (4 MB)
manufactured by SGS-THOMSON) to save the user screen
data.
The user screen data can be written using a general-pur-
pose ROM writer connected to the screen creation soft-
ware.