Toshiba PROSEC T1 T1S, 6F3B0250 user manual User program configuration

6F3B0250

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 has 2 k steps capacity for storing the user program. And the T1S 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/T1S’s memory configuration.

2 k steps (T1)

4 k or 8 k steps (T1S)

RAM

System information

User program

Data registers mentioned in section 5.2

Other registers/

devices

Back-up area by EEPROM

NOTE

For conditions of transfer between RAM and EEPROM, see section 5.2.

110 T1/T1S User’s Manual

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