Specifications

542
The size and area allocation of the memory incorporated in the BHT differ depending upon the
models as listed below.
*21
Plus a maximum of 404 KB if you delete fonts
■ Memory Management
The BHT manages the user area of the memory for user programs and data files by a unit
of segment called "cluster." The cluster size is usually 4 kilobytes. In some models or
drives, the cluster size is 8 kilobytes as listed above.
The maximum allowable size for a single user program is 64 kilobytes excluding register
variables.
■
Battery Backup of Memory
The BHT backs up the memory with a battery cartridge. Therefore, data stored in the
memory will not be lost if the BHT power is turned off.
■
Memory Space Available for Variables
Listed below are the maximum memory spaces available for work, common, and register
variables.
Each variable occupies the memory space as listed below.
An array variable occupies the memory space by (number of bytes per array element x
number of array elements).
BHT series Models User area
BHT-100 BHT-102B
BHT-102BF
1900
*1
BHT-103Q
BHT-103QF
4524
*1
Variables Max. memory space
Work and common variable area 32 KB
Register variable area 64 KB
Variables Max. memory space
Integer variable 2 bytes
Real variable 6 bytes
String variable 2 to 256 bytes
(Including a single character count byte)