GP4000 Series Hardware Manual
103
Memory, Clock, and Touch Panel
Memory
*1
Capacity available for user application (internal memory).
*2
Up to 60,000 steps can be converted in software. However, this reduces
application memory capacity for screen data by 1 MB.
Clock
± 65 seconds per month (deviation at room temperature and power is OFF).
Variations in operating conditions and battery life can cause clock deviations from -
380 to +90 seconds per month.
For systems where this level of precision is insufficient, the user should monitor and
make adjustments when required.
Touch Panel
GP-4501T / GP-4503T GP-4501TW
Application Memory
*1
FLASH EPROM 32 MB
(including the logic
program area)
FLASH EPROM 16 MB
(including the logic
program area)
Logic Program Area FLASH EPROM 132 KB (Equivalent to 15,000
steps)
*2
Font Area FLASH EPROM 8 MB (when limit exceeded, uses
application memory)
Data Backup SRAM 320 KB
(Replaceable lithium
battery for data backup)
SRAM 128 KB
(Replaceable lithium
battery for data backup)
Variable Area SRAM 64 KB
(Replaceable lithium
battery for retentive
variables)
None
GP-4501T (Analog Touch
Panel) / GP-4501TW / GP-
4503T
GP-4501T (Matrix Touch
Panel)
Touch Panel Type Resistive Film (analog) Resistive Film (matrix)
Touch Panel Resolution 1,024 x 1,024 32 x 24 keys/screen
Service Life 1 million times or more
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