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Limited Warranty and Disclaimer AMX Corporation warrants its products to be free from defects in material and workmanship under normal use for a period of three years from date of purchase from AMX, with the following exceptions. Electroluminescent and LCD control panels are warranted for a period of three years, except for the display and touch overlay components, which are warranted for a period of one year.
Table of Contents Introduction ............................................................................ 1 Overview 1 Features 1 Operation 2 Wiring the TX-MLCD 3 AXCESS Programming ........................................................... 5 Overview 5 Programming Restrictions 6 Programming Basics 6 Sample Program 8 Specifications....................................................................... 15 Overview 15 Technical Support .....................................................
ii Table of Contents TX-MLCD Mini-LCD Transmitter
Introduction Overview The TX –MLCD (Figure 1) is a programmable Radio Frequency (RF) or Infrared (IR) wireless transmitter. Text for TX–MLCD menu functions is presented on a 2-line, 16 character, horizontal liquid crystal display (LCD). All TX–MLCD functions are under software control. The TX–MLCD is completely compatible with a subset of the AXCESS System programming language described in the programming section of this User Guide. Figure 1 is an illustration of the TX–MLCD panel arrangement.
• RS–232 port— used to program the TX–MLCD functions. The data rate is fixed at 1200 baud (bps). • Portable — the AMX TX–MLCD uses four AAA batteries for completely portable operation. Operation Once a program, like the example in the appendix, is loaded, your TX– MLCD provides complete menu selection of up to 12 control menus with up to 6 functions each. Menu selections allow you to control a wide range of devices with RF or IR signals according to your needs.
Wiring the TX-MLCD Figure 3 shows how to connect the TX–MLCD RS–232 port to an AXCESS RS–232 cable for programming. Cable Wiring 9-Pin D to Stereo Plug Pin 2 to Ring Terminal Pin 3 to Tip Terminal Pin 5 to Sleeve Terminal Figure 3 RS-232 adapter cable wiring diagram (AXCESS-to-TX- 9-Pin D Male MLCD) 2 TXD 3 RXD 5 Ground TX-MLCD Mini-LCD Transmitter Length = 8 to 10 inches Tip (3)Tip (2)Ring (5)Sleeve 2.
4 Introduction TX-MLCD Mini-LCD Transmitter
AXCESS Programming Overview You can use the AXCESS software to program all features of the TX–MLCD. A working knowledge of the AXCESS programming language is needed to thoroughly understand the operation of the TX–MLCD. Language features include screen control, character position control, and commands for implementing TX–MLCD functions.
Programming Restrictions AXCESS program restrictions include: 1. DEFINE_LATCHING, DEFINE_MUTUALLY_EXCLUSIVE, and DEFINE_TOGGLING are not supported. Similar functions are accomplished with combinations of ON, OFF, and IF… ELSE. 2. PULSE is not supported. A similar function is accomplished with combinations of ON, WAIT, and OFF 3. String support is limited: • No access to individual array elements • No string comparisons • Some string functions are not supported (e.g., LEFT_STRING, and so on.
• A PUSH occurs in the program every time a button (key) is pressed. Figure 4 shows the button assignments. Figure 4 Button assignments Top Left = 1 • • • 5 6 • • • 10 4 • • • 15 16 • • • 20 = Bottom Right • Turning on channels 1 through 254 enables transmission (RF or IR) of the respective radio code. The code example below transmits radio code 128 when button 1 is pressed. PUSH[SK, 1] TO[SK, 128] • Use SEND_STRING to send characters to the LCD screen.
Sample Program Figure 5 is a sample demo AXCESS software program for a TX-MLCD. Refer to the AXCESS Language Programming Guide for complete programming instructions. Figure 5 Sample AXCESS software program PROGRAM_NAME='TXMLCD 6 BUTTON DEMO PROGRAM, RSH 04-29-91' (* DATE:04/28/92 TIME:16:53:22 *) (* THIS IS A GENERIC PROGRAM THAT CREATES 6 VARIABLE FUNCTION BUTTONS BUTTONS DENOTED WITH A * BELOW. THE REMAINING THREE ROWS ARE USED FOR MENU SELECTIONS.
DEFINE_VARIABLE BA[4] (* LCD VARIABLE FORMAT *) BB[4] BC[2] (* BA BC FILL BD BF *) BD[2] (* BB ( SOURCE ) BE *) BE[4] BF[4] FILL[4] SOURCE[6] BTEMP[4] (* FOR TEMPORARILY SAVING BA, BB, BC, BD, BE, OR BF *) RC (* RADIO CODE OFFSET AFTER MENU SELECTION *) (***********************************************************) (* LATCHING DEFINITIONS GO BELOW *) (***********************************************************) DEFINE_LATCHING (***********************************************************) (* DEFINE CALLS GO B
} PUSH[MLCD,4] TO[MLCD,2] (* MENU SELECTION 2 TRANSMITS RC 2 *) BA='ENT ' BC='<-' FILL='CRSR' BD='->' BF=' FWD' BB='F1 ' SOURCE=' MAC ' BE=' REV' CALL'LCD' RC=40 (* FUNCTIONS 1-6 WILL NOW TRANSMIT 40-45 *) } PUSH[MLCD,5] { TO[MLCD,3] BA='#1 ' BC='#2' FILL=' ' BD='#3' BF=' #4' BB='#5 ' SOURCE=' AUX ' BE=' OFF' CALL'LCD' RC=48 } PUSH[MLCD,8] { TO[MLCD,4] BA='PSE ' BC='<<' FILL='SRCH' BD='>>' BF=' PLY' BB='REW ' SOURCE=' VHS ' BE=' STP' CALL'LCD' RC=56 } PUSH[MLCD,9] { TO[MLCD,5] BA='PSE ' BC='<<' FILL=' ' BD=
TO[MLCD,8] BA='PSE ' BC='<<' FILL='CHPT' BD='>>' BB='HOME' SOURCE='LSR DS' CALL'LCD' RC=88 } PUSH[MLCD,15] { TO[MLCD,9] BA='MID ' BC='<-' FILL='DRPS' BD='->' BB='LOW ' SOURCE='LIGHTS' CALL'LCD' RC=96 } PUSH[MLCD,18] { TO[MLCD,10] BA='ON ' BC='<-' FILL='FOCS' BD='->' BB='OFF ' SOURCE='SLIDES' CALL'LCD' RC=104 } PUSH[MLCD,19] { TO[MLCD,11] BA='FWD ' BC='R<' FILL='DUAL' BD='>F' BB='REV ' SOURCE=' DUAL ' CALL'LCD' RC=112 } PUSH[MLCD,20] { TO[MLCD,12] BA='MENU' BC=' <' FILL='- -' BD='> ' BB='CNTU' SOURCE='V-SHOW
PUSH[MLCD,2] (*BB*) { TO[MLCD,RC] BTEMP=BB BB='--- ' CALL'LCD' } RELEASE[MLCD,2] { BB=BTEMP CALL'LCD } PUSH[MLCD,6] (*BC*) { TO[MLCD,RC+2] BTEMP=BC BC='--' CALL'LCD' } RELEASE[MLCD,6] { BC=BTEMP CALL'LCD' } PUSH[MLCD,11] (*BD*) { TO[MLCD,RC+3] BTEMP=BD BD='--' CALL'LCD' } RELEASE[MLCD,11] { BD=BTEMP CALL'LCD' } PUSH[MLCD,16] (*BF*) { TO[MLCD,RC+4] BTEMP=BF BF=' ---' CALL'LCD' } RELEASE[MLCD,16] { BF=BTEMP CALL'LCD' } 12 AXCESS Programming TX-MLCD Mini-LCD Transmitter
PUSH[MLCD,17] (*BE*) { TO[MLCD,RC+5] BTEMP=BE BE=' ---' CALL'LCD' } RELEASE[MLCD,17] { BE=BTEMP CALL'LCD' } (***********************************************************) (* END OF PROGRAM *) (* DO NOT PUT ANY CODE BELOW THIS COMMENT *) (***********************************************************) TX-MLCD Mini-LCD Transmitter AXCESS Programming 13
14 AXCESS Programming TX-MLCD Mini-LCD Transmitter
Specifications Overview Figure 6 shows the TX-MLCD, and Figure 6 lists the specifications. Figure 6 TX-MLCD Mini-LCD transmitter Horizontal LCD SOURCE IBM VHS UMATIC SLIDES MAC CASS LSR DS DUAL AUX VOLUME LIGHTS V-SHOW Figure 7 Specifications Specifications Buttons 20 pushbuttons under Lexan faceplate Display 2-line, 16-character per line LCD readout IR transmission Low-frequency (38 kHz) Memory 25K Includes Four AAA, 1.
16 Specifications TX-MLCD Mini-LCD Transmitter
Technical Support Overview Before you call AMX for assistance, check your AXlink, power, and cable connections, and the integrity of your software operating system. Reload the software to see if something in the program is causing the problem. If the problem is not resolved, reload the program from a new copy of your master disk. If you still have a service problem, call AMX at (800) 222-0193 or (972) 644-3048 for technical assistance.
Document No. 034-004-1079 5/92 © 1996 AMX Corporation AMX reserves the right to alter specifications without notice at any time. AMX and the AMX logo are registered trademarks of AMX Corporation. All other trademarks contained in this document are the properties of their respective owners. 11995 Forestgate Drive Dallas, Texas 75243 800/222-0193 972/644-3048 FAX 972/907-2053 h t t p : / / w w w . a m x .
