Matrix-orbital LK402-25 Legacy Uživatelský manuál Strana 10
- Strana / 56
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
2.1.1 Power Through DB-9 Jumper
In order to provide power through pin 9 of the DB-9 Connector you must place a solder jumper on the
Power through DB-9 Jumper pictured in figure 10 below. The LK402-25 allows all voltage models to use the
power through DB-9 option, see table 68 on page 49 for display module voltage requirements.
Figure 10: Power Through DB-9 Jumper
WARNING Do not apply voltage through pin 9 of the DB-9 connector
AND through the Power/Data Connector at the same time.
2.2 Power/Data Connector
The Power/Data Connector provides a standard connector for powering the display module. The LK402-
25 requires five volts for the standard display module, between nine to fifteen for the wide voltage (V)
and between nine to thirty-five volts for the wide voltage with efficient power supply module (VPT). The
voltage is applied through pins one and four of the four pin Power/Data connector. Pins two and three are
reserved for serial transmission, using either the RS-232/TTL or the I
2
C protocol, depending on what has
been selected by the Protocol Select Jumpers. Pins two and three may be reversed by changing the Legacy
Connector Jumpers in order to be compatible with previous PCB revisions.
Pin 1 PWR (See table 68 on page 49)
Pin
2 Rx \ SCL (I
2
C clock)
Pin
3 Tx \ SDA (I
2
C data)
Pin 4 GND
Figure 11: Power Connector and Pin out
Matrix Orbital LK402-25 6
- LK402-25 1
- Technical Manual 1
- Revision: 1.1 1
- Contents 2
- 1 Getting Started 5
- 1.3 Features 6
- 1.4 Connecting to a PC 7
- 1.5 Installing the Software 8
- 2 Hardware Information 9
- 2.2 Power/Data Connector 10
- 2.3 Protocol Select Jumpers 11
- 2.4 General Purpose Outputs 11
- 2.5 Dallas 1-Wire Bridge 12
- 2.6 Manual Override 12
- 3 Troubleshooting 14
- 4 Communications 15
- 4.2 Changing the I 16
- C Slave Address 16
- 4.3 Changing the Baud Rate 17
- CrystalSpeed 18
- 8×DesiredBaud 18
- 5.2 Auto Scroll On 20
- 5.3 Auto Scroll Off 21
- 5.4 Clear Screen 21
- 5.6 Set Auto Line Wrap On 22
- 5.7 Set Auto Line Wrap Off 22
- 5.8 Set Cursor Position 22
- 5.9 Go Home 23
- 5.10 Move Cursor Back 23
- 5.11 Move Cursor Forward 23
- 5.12 Underline Cursor On 24
- 5.13 Underline Cursor Off 24
- 5.14 Blinking Block Cursor On 24
- 6 Special Characters 25
- 6.3 Saving Custom Characters 26
- 6.4 Loading Custom Characters 27
- 6.6 Initialize Medium Number 28
- 6.7 Place Medium Numbers 28
- 6.8 Initialize Horizontal Bar 29
- 6.12 Place Vertical Bar 30
- 7 General Purpose Output 31
- 8 Dallas 1-Wire 32
- 8.3 Dallas 1-Wire Transaction 33
- 9 Keypad 34
- C Interface 35
- 9.1.2 RS232 Interface 35
- 9.4 Poll Key Press 36
- 9.5 Clear Key Buffer 36
- 9.6 Set Debounce Time 37
- 9.7 Set Auto Repeat Mode 37
- 9.8 Auto Repeat Mode Off 38
- 9.9 Assign Keypad Codes 38
- 10 Display Functions 39
- 10.3 Display Off 40
- 10.4 Set Brightness 40
- 10.5 Set and Save Brightness 40
- 10.6 Set Contrast 40
- 10.7 Set and Save Contrast 41
- 11 Data Security 42
- 11.3 Data Lock 43
- 12 Miscellaneous 44
- 12.2 Read Version Number 45
- 12.3 Read Module Type 45
- 13 Command Summary 47
- 13.3 Special Characters 48
- 13.4 General Purpose Output 49
- 13.5 Dallas 1-Wire 49
- 13.6 Keypad 49
- 13.7 Display Functions 50
- 13.8 Data Security 50
- 13.9 Miscellaneous 51
- 13.10 Command By Number 51
- 14 Appendix 53
- 14.3 Physical Layout 54
- 14.4 Ordering Information 55
- 14.5 Definitions 55
- 14.7 Revision History 55
- Table 72: Revision History 56
- Revision Description Author 56
- Matrix Orbital LK402-25 52 56
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