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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. Disk drive mechanisms, power supplies, modifications, MX Series products, and KC Serie
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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 ...........................................................
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ii Table of Contents TX-MLCD Mini-LCD Transmitter
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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 arrangeme
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• 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. • RF or IR selection— The operat
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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 Figure 3 Pin 2 to Ring Terminal Pin 3 to Tip Terminal RS-232 adapter cable wiring 9-Pin (3)Tip Pin 5 to Sleeve Terminal diagram (AXCESS-to-TX- D Male (2)Ring MLCD) (5)Sleeve Length = 8 to 10 inches 2 TXD 3 RXD Tip 2.5mm Stereo Plug 5 Ground Ring Sleeve TX-MLCD Mini-LCD Transmitter Introduction 3
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4 Introduction TX-MLCD Mini-LCD Transmitter
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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. The following subset of the AXCESS Language commands are supported for the TX– MLCD: CALL CANCEL_ALL_WAIT CANCEL_WAIT DEFINE_CONSTANT DEFINE_DEVICE DEFINE_PRO
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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.) • M
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• A PUSH occurs in the program every time a button (key) is pressed. Figure 4 shows the button assignments. 1 6 4 16 Figure 4 Top Left = • • • • Button assignments • • • • • • • • 5 10 15 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. Characters will start at the current curs
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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. PROGRAM_NAME='TXMLCD 6 BUTTON DEMO PROGRAM, RSH 04-29-91' Figure 5 (* DATE:04/28/92 TIME:16:53:22 *) Sample AXCESS software (* program 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. BUTTON NUMBERING: 1*
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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 (**
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} 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='>>'
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TO[MLCD,8] BA='PSE ' BC='<<' FILL='CHPT' BD='>>' BF=' PLY' BB='HOME' SOURCE='LSR DS' BE=' STP' CALL'LCD' RC=88 } PUSH[MLCD,15] { TO[MLCD,9] BA='MID ' BC='<-' FILL='DRPS' BD='->' BF='CONF' BB='LOW ' SOURCE='LIGHTS' BE=' AV' CALL'LCD' RC=96 } PUSH[MLCD,18] { TO[MLCD,10] BA='ON ' BC='<-' FILL='FOCS' BD='->' BF=' FWD' BB='OFF ' SOURCE='SLIDES' BE=' REV' CALL'LCD' RC=104 } PUSH[MLCD,19]
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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'
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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
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14 AXCESS Programming TX-MLCD Mini-LCD Transmitter
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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 UMATIC SLIDES VHS 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, 1.5 V alkaline batteries Enclosure Molded black matte plastic Dimensions 5.8"
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16 Specifications TX-MLCD Mini-LCD Transmitter
