6F3B0253
92 T1-16S User’s Manual
6. Programming Information
6.6 User program configuration
A group of instructions for achieving the PLC-based control system is called ‘user
program’. The T1-16S has 8 k steps capacity for storing the user program.
A ‘step’ is the minimum unit, which composes an instruction. Number of steps required
for one instruction is depending on the type of instruction. Refer to section 7.1.
The figure below shows the T1-16S’s memory configuration.
RAM
For conditions of transfer between RAM and EEPROM, see section 5.2.
System information
Back-up area
by EEPROM
4 k or 8 k steps User program
Data registers
mentioned in
section 5.2
Other registers/
devices
NOTE