Matrix Orbital LK204-25 Bedienungsanleitung

LK204-25

Technical Manual

Revision: 2.0

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Contents

Contents ii

1 Getting Started 1

1.1 Display Options Available . . ................................. 1

1.2 Accessories . . . . . . ..................................... 2

1.3 Features . ............................................ 6

1.4 Connecting to a PC . . ..................................... 7

1.5 Installing the Software ..................................... 8

1.5.1 uProject . . . . ..................................... 8

2 Hardware Information 9

2.1 DB-9 Connector . . . . ..................................... 9

2.1.1 Power Through DB-9 Jumper ............................. 10

2.2 Power/Data Connector ..................................... 10

2.3 Protocol Select Jumpers ..................................... 11

2.4 General Purpose Outputs . . . ................................. 12

2.5 Dallas 1-Wire Bridge . ..................................... 13

2.6 Manual Override . . . ..................................... 13

2.7 Keypad Interface Connector . ................................. 14

3 Troubleshooting 15

3.1 The display does not turn on when power is applied. ...................... 15

3.2 The display module is not communicating. . . . . . ...................... 16

3.3 The display module is communicating, however text cannot be displayed. . . . ....... 16

4 Communications 16

4.1 Introduction . . . . . . ..................................... 16

4.1.1 I2C Communication Summary ............................. 16

4.1.2 Serial Communication ................................. 17

4.2 Changing the I2C Slave Address . . . ............................. 18

4.3 Changing the Baud Rate . . . ................................. 18

4.4 Setting a Non-Standard Baud Rate . . ............................. 19

5 Text 20

5.1 Introduction . . . . . . ..................................... 20

5.1.1 Character Set . ..................................... 21

5.1.2 Control Characters . . ................................. 21

5.2 Auto Scroll On . . . . ..................................... 21

5.3 Auto Scroll Off . . . . ..................................... 22

5.4 Clear Screen . . . . . . ..................................... 22

5.5 Changing the Startup Screen . ................................. 22

5.6 Set Auto Line Wrap On ..................................... 23

5.7 Set Auto Line Wrap Off ..................................... 23

5.8 Set Cursor Position . . ..................................... 23

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5.9 Go Home ............................................ 24

5.10 Move Cursor Back . . ..................................... 24

5.11 Move Cursor Forward . ..................................... 24

5.12 Underline Cursor On . ..................................... 25

5.13 Underline Cursor Off . ..................................... 25

5.14 Blinking Block Cursor On . . ................................. 25

5.15 Blinking Block Cursor Off . . ................................. 25

6 Special Characters 26

6.1 Introduction . . . . . . ..................................... 26

6.2 Creating a Custom Character . ................................. 26

6.3 Saving Custom Characters . . ................................. 27

6.4 Loading Custom Characters . ................................. 28

6.5 Save Startup Screen Custom Characters . . . . . . ...................... 28

6.6 Initialize Medium Number . . ................................. 29

6.7 Place Medium Numbers . . . ................................. 29

6.8 Initialize Large Numbers . . . ................................. 29

6.9 Place Large Number . ..................................... 30

6.10 Initialize Horizontal Bar . . . ................................. 30

6.11 Place Horizontal Bar Graph . . ................................. 30

6.12 Initialize Narrow Vertical Bar . ................................. 31

6.13 Initialize Wide Vertical Bar . . ................................. 31

6.14 Place Vertical Bar . . . ..................................... 32

7 General Purpose Output 32

7.1 Introduction . . . . . . ..................................... 32

7.2 General Purpose Output Off . ................................. 32

7.3 General Purpose Output On . . ................................. 33

7.4 Set Startup GPO state . ..................................... 33

8 Dallas 1-Wire 34

8.1 Introduction . . . . . . ..................................... 34

8.2 Search for a 1-Wire Device . . ................................. 34

8.3 Dallas 1-Wire Transaction . . ................................. 35

9 Keypad 36

9.1 Introduction . . . . . . ..................................... 36

9.1.1 I2C Interface . ..................................... 37

9.1.2 RS232 Interface . . . ................................. 37

9.2 Auto Transmit Key Presses On ................................. 37

9.3 Auto Transmit Key Presses Off ................................. 37

9.4 Poll Key Press . . . . . ..................................... 38

9.5 Clear Key Buffer . . . ..................................... 38

9.6 Set Debounce Time . . ..................................... 39

9.7 Set Auto Repeat Mode ..................................... 39

9.8 Auto Repeat Mode Off ..................................... 40

9.9 Assign Keypad Codes . ..................................... 40

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10 Display Functions 41

10.1 Introduction . . . . . . ..................................... 41

10.2 Display On . . . . . . ..................................... 41

10.3 Display Off . . . . . . ..................................... 42

10.4 Set Brightness . . . . . ..................................... 42

10.5 Set and Save Brightness ..................................... 42

10.6 Set Contrast . . . . . . ..................................... 42

10.7 Set and Save Contrast . ..................................... 43

11 Data Security 43

11.1 Introduction . . . . . . ..................................... 43

11.2 Set Remember . . . . . ..................................... 44

11.3 Data Lock............................................ 44

11.4 Set and Save Data Lock ..................................... 45

12 Miscellaneous 46

12.1 Introduction . . . . . . ..................................... 46

12.2 Read Version Number . ..................................... 46

12.3 Read Module Type . . ..................................... 46

13 Command Summary 47

13.1 Communications . . . ..................................... 47

13.2 Text . . . ............................................ 48

13.3 Special Characters . . ..................................... 49

13.4 General Purpose Output ..................................... 50

13.5 Dallas 1-Wire . . . . . ..................................... 50

13.6 Keypad . ............................................ 50

13.7 Display Functions . . . ..................................... 51

13.8 Data Security . . . . . ..................................... 51

13.9 Miscellaneous . . . . . ..................................... 51

13.10Command By Number ..................................... 52

14 Appendix 53

14.1 Speciﬁcations . . . . . ..................................... 53

14.1.1 Environmental ..................................... 53

14.1.2 Electrical . . . ..................................... 54

14.2 Optical Characteristics ..................................... 54

14.3 Physical Layout . . . . ..................................... 55

14.4 Deﬁnitions ............................................ 56

14.5 Contacting Matrix Orbital . . . ................................. 56

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1.2 Accessories

NOTE Matrix Orbital provides all the interface accessories needed to get your display

up and running. You will ﬁnd these accessories and others on our e-commerce website at

http://www.matrixorbital.com. To contact a sales associate see Section 14.5 on page 56 for

contact information.

Figure 2: 5V Power Cable Adapter

Figure 3: 12V Power Cable Adapter (V/VPT Models)

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Figure 4: Breadboard Cable

Figure 5: Serial Cable 4FT

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Figure 6: Communication and 5V Power Cable

Figure 7: Aluminum Mountings

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Figure 8: Keypad Mountings

Figure 9: Mounting Kits

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Figure 10: 4X4 Keypad

1.3 Features

•20 column by 4 line alphanumeric liquid crystal display

•Selectable communication protocol, RS-232 or I2C

•One-wire interface

•Six, 5V -20mA, general purpose outputs for a variety of applications

•Lightning fast communication speeds, up to 57.6 kbps for RS-232 and 400 kbps for I 2C

•Default 19.2 kbps serial communication speed

•Extended temperature available for extreme environments of -20C to 70C

•Extended voltage and efﬁcient power supply available

•Built in font with provision for up to 8 user deﬁned characters

•Use of up to 127 modules on the same 2 wire I2C interface

•1-wire bus that is capable of communicating with up to 32 devices over a single bus

•Fully buffered so that no delays in transmission are ever necessary

•Ability to add a customized splash / startup screen

•Software controlled contrast and brightness with conﬁgurable time-out setting up to 90 minutes

•Use of up to a 25 key keypad with a 10 key buffer

•Horizontal or vertical bar graphs

•Extended temperature option

•Fits Matrix Orbital’s mountings without any modiﬁcations

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