
1. If the user forgot the password, the password can be cleared by using the following code: 8888. This
universal code will clear the password and all TP04 series internal programs. The TP04 series will be reset to
the factory settings by using this code also. Please pay close attention when using it.
2. The password can be the alphabet from A to Z or the number from 0 to 9. But it must use the function keys F0
~ F9 to input the password characters. Please refer to the following table.
F0/F5: Scrolls in a loop as follows 0→5→A→B→C→D→E→F→0
F1/F6: Scrolls in a loop as follows 1→6→G→H→I→J→K→1
F2/F7: Scrolls in a loop as follows 2→7→L→M→N→O→P→2
F3/F8: Scrolls in a loop as follows 3→8→Q→R→S→T→U→V→3
F4/F9: Scrolls in a loop as follows 4→9→W→X→Y→Z→4
Hardware Operation
When the user wants to startup TP04 series, a 24V DC power is needed. After applying 24V DC power to
TP04 series, it will enter into the startup display and then enter the user-designed program. Pressing Esc key
and holding on for 5 seconds can return to system menu. There are five selections in the system menu and
are described below.
Selections Explanation
Download program
Use the connection cable (UC-PRG020-12A (2M)) to connect the TP04 serial communication port
RS-232 to a PC. Then use the TPEditor/ DIAScreen software to download an application program to
TP04.
Upload program
Use the connection cable (UC-PRG020-12A (2M)) to connect the TP04 serial communication port
RS-232 to a PC. Then use the TPEditor/ DIAScreen software to upload an application program from
TP04.
Copy program
Transfer a program between two TP04 units.
1: transmit programs. 2: receive programs
When transmit programs and data between two TP04 units. Set one TP04 to “Receive Program”
mode and the other TP04 to “Transmit Program” mode. Please use twisted pair wires to connect the
two units via the RS-485 ports.
TP04 settings
There are 9 items that used to modify TP04 system settings:
1. Communication protocol: Setting the address of TP04, the control port of PLC, and the
communication string for either RS-232 or RS-485.
2. Contrast: Adjust the contrast of LCM display screen.
3. Back-light: adjust the automatic turn off time of LCM. Setting range is 00 ~ 99 minutes. If set to
00, the LCM Back-light will not turn off.
4. Date and Time: It is used to set the TP04 built-in RTC including year, month, day, hour, minute,
second and week. Also the internal battery capacity display is shown here.
5. Buzzer: Used to set the buzzer sound, normal mode or quiet mode.
6. Language Setting: Used to set the displayed language. English, Traditional Chinese, Simplified
Chinese or user defined language.
7. Password setting: Used to set, enable, and disable the password function. If the password
function is enabled, it will require the user to input a password before entering any system menu.
The factory password is 1234.
8. Startup display: Used to select the TP04 startup display. User can select “user defined” to use the
file that designed by TPEditor/ DIAScreen and download to TP04.
9. Comm. indicator: The user can determine if the RS-232 and RS-485 LEDs will blink or not during
communication.
PLC connection
There are three methods to connect to PLC:
1. Using TP04 serial communication port (COM1) RS-232: set 8-pin DIP switch to RS-485 mode
and connect the cable (UC-MS010-02A(1M)/UC-MS020-01A(2M)/UC-MS030-01A(3M)) to
program communication I/O RS-232C of PLC.
2. Using extension communication port (COM2): set 8-pin DIP switch to RS-485 mode and connect
5-pin removal terminal of extension communication port to RS-485 of PLC with twisted pair.
3. Using extension communication port (COM2): set 8-pin DIP switch to RS-422 mode and connect
four pins (6, 7, 8, 9) of 9 PIN D-SUB male to RS-422 of PLC with 4-wire cable.
Execution
Execute the internal program that download from TPEditor/DIAScreen or transmitted from other
TP04 units. When program is in execution, the user can return to system menu by pressing
Escape/Exit (Esc) key for 5 seconds.