12 PROSEC T3H
1. T3H Overview

1.3 T3H components

(1) CPU module

Two types of T3H CPU modules are available.
Type Description
PU325H EEPROM + RAM (battery backed), User program 32 k steps,
Ladder diagram and SFC
PU326H EEPROM + RAM (battery backed), User program 64 k steps,
Ladder diagram and SFC
PU325H
EJECT
CARD
LINK
PROG
BATTERY
HALT P-RUN
RUN
ROM
RAM
BATT I/O
FAULT
RUN
The external feature of the T3H CPU is the same as the T3 CPU except for the
product identification.
Product identification
Status LEDs
RAM/ROM switch
Mode control switch (HALT/RUN/P-RUN)
Battery cover
Programmer port
(RS-232C, D-Sub 9-pin female connector)
Computer link port
(RS-485, D-Sub 15-pin female connector)
Module fixing screw
IC memory card slot