MDU RKD

Message Device Unit Remote Keyboard Display

MDU RKD is a card capable to solve all the operator interfacing problems where the User wants to build in autonomy the management of the direct interaction to the operator (keyboard, display, synoptical, etc.). It has been designed for industrial use and direct mounting on the racks of automatic machines. MDU RKD includes all the electronic essential to a complete video terminal that fits to perform the information interchange between operator and machine for all those command and control operations needed during the working or the diagnostic of the machine itself.

MDU RKD can manage directly LCD or Fluorescent alphanumeric display and LCD graphic display of several sizes and formats. In addition, it is provided with an interface for a matrix keyboard of 8x8 = 64 keys and 22 signalation LEDs. By means of the ABACO® I/O BUS interface, MDU RKD can be used also for control applications where signals from the external world are managed through numerous peripheral cards.

Applying some of the several options available it is possible to expand the basic features of MDU RKD card, options are, for example: RAM memory expansion, EPROM, FLASH EPROM; Real Time Clock with Lithium battery; a range of electric items for serial communication; etc. A set of comfortable connectors allows a fast and secure connection to the rest of interfacement circuits, giving so the possibility to build a low cost custom operator interface.

Programming and using the on board resources becomes extermly easy by means of the romated operating system FGDOS. It supports high level languages like BASIC compilers, PASCAL, C, etc. and allows to access the memory resources like ROM/RAM disk, for an immediate high level use of these resources.

• - Size: 200 x 100 x 45 mm (L x A x P) with mounting holes.
• - Optional container for DIN 46277-1 and DIN 46277-3 rack mounting.
• - CPU Z180 with quartz at 18.4 MHz.
• - Up to 256K RAM and up to 768K EPROM or 640K FLASH EPROM.
• - Serial EEPROM max 8K Bytes for set up, messages, keys codes, etc.
• - Interface for keyboard up to 64 keys, available on low profile connectors.
• - Direct control of 22 signalation LEDs on low profile connectors.
• - Interface for the following intellingent Display:
  • LCD Display alphanumeric featuring 2x20, 4x20, 1x40, 2x40 characters;
  • Fluorescent Display alphanumeric featuring 2x20, 4x20, 1x40, 2x40 or 4x40 characters;
  • LCD Display graphic featuring 120x64, 240x64, 128x128, 160x128, 240x128 pixels;
• - Most of the display can be connected through a simple flat cable.
• - Section to generate the contrast voltage for LCD display.
• - Configuration Dip Switch software readable.
• - Buzzer for acoustic signalations.
• - Hardware watch dog circuitry software retriggerable.
• - Optional RTC with Lithium battery.
• - Software manageable activity LED.
• - Interface to ABACO® I/O BUS on standard connector, to manage external peripheral cards.
• - Two RS 232 serial lines one of which settable in RS422, RS485 or Current Loop.
• - On board power supply capable to supply external loads.
• - DC or AC power supply from 5Vdc up to 24Vac.

There is a management firmware for MDU RKD, ready to use and capable to perform the tasks of a complete operator panel designed to work in industrial environment and in direct connection to the automatic machines. This firmware turns functionally the MDU RKD into a complete video terminal, that fits to perform the information interchange between operator and machine for all those command and control operations needed during the working or the diagnostic of the machine itself. It can manage the LCD graphic display with 240x128 pixels, that can feature alphanumeric performances of 30 characters by 16 rows.

The firmware manages the rest of the hardware resources (external keyboard, buzzer, LEDs, serial lines, etc) through a set of commands provided by the serial line compatible with the standard ADDS Wiew-Point.

Here follow the most remarkable features of MDU RKD firmware:

• - Matrix keyboard management with debouncing and autorepeat.
• - The User can make a complete reconfiguration of the key codes.
• - Direct command of signalation LEDs also with Blinking attribute.
• - Alphanumeric representation of 30 characters by 16 rows.
• - Graphic representation of 240 by 128 pixels.
• - Data save to and load from the on board EEPROM.
• - Buzzer for BELL or for key pressed sound feedback.
• - Communication settable in Point to point mode or Master Slave mode.
• - Local set up of working modes (Baud Rate, Stop Bit, Keyclick, etc).
• - Graphic primitives like circle, rectangle, segment etc. and character size.
• - Great communication buffer.
• - Management of a serial printer with hardcopy function.
• - Complete set of serial commands .

MDU-RKD COMMAND SUMMARIZING TABLE
COMMAND	CODE	HEX CODE	MNEMONIC
H O M E	01	01	SOH
CURSOR LEFT	21	15	NACK
CURSOR RIGHT	06	06	ACK
CURSOR DOWN	10	0A	LF
CURSOR UP	26	1A	SUB
CARRIAGE RETURN	13	0D	CR
CR + LF	29	1D	GS
ABSOLUTE CURSOR POSITION with 20H OFFSET	27 89 r c	1B 59 r c	ESC Y ASCII(r) ASCII(c)
BACK SPACE	08	08	BS
CLEAR PAGE	12	0C	FF
CLEAR LINE	25	19	EM
CLEAR END OF LINE	27 75	1B 4B	ESC K
CLEAR END OF PAGE	27 107	1B 6B	ESC k
Cursor OFF	27 80	1B 50	ESC P
Static Cursor ON	27 79	1B 4F	ESC O
Blinking Cursor	27 77	1B 4D	ESC M
Request for on EEPROM writing	27 51	1B 33	ESC 3
Writing pf life byte	27 33 78 key	1B 21 4E key	ESC ! N ASCII(key)
Reading of life byte	27 33 110	1B 21 6E	ESC ! n
Writing EEPROM Block	27 6 byte0...byteN	1B 6 byte0...byteN	ESC ASK ASCII(byte0) ...ASCII(byte N)
Reading EEPROM Block	27 7 byte0 byte1 byte2	1B 7 byte0 byte1 byte2	ESC BEL ASCII(byte0) ASCII(byte1) ASCII(byte2)
Key-Click ON Without Memorization	27 53	1B 35	ESC 5
Key-Click OFF Without Memorization	27 54	1B 36	ESC 6
KEY Configuration	27 55 n. key cod.	1B 37 n. key cod.	ESC 7 ASCII(n.key) ASCII(cod.)
Key-Click ON With Memorization	27 33 53	1B 21 35	ESC ! 5
Key-Click OFF With Memorization	27 33 54	1B 21 36	ESC ! 6
Reading of Version Number	27 86	1B 56	ESC V
Display Setting in ALFANUMERIC Mode	27 208	1B D0	ESC ASCII(208)
Display Setting in GRAPHIC Mode	27 209	1B D1	ESC ASCII(209)
Echo Abling of the Chars Received on the 1 Serial Line	27 3	1B 3	ESC ETX
Echo Disabling of the Chars Received on the 1 Serial Line	27 4	1B 4	ESC EOT
SCREEN Visualization	27 122 byte1 byte2	1B 7A byte1 byte2	ESC z ASCII(byte1) ASCII(byte2)
STRING Visualization	27 8 byte0...byteN	1B 8 byte0...byteN	ESC BS ASCII(byte0).. ASCII(byte N)
Characters Show	32 ÷ 125	20 ÷ 7D	"space" ÷ "}"
LEDs Activation	27 50 n. LEDs Attr.	1B 32 n. LEDs Attr.	ESC 2 ASCII(n.LED) ASCII(Attr.)
LEDs Mask Activation	27 52 byte1 byte2 byte3	1B 34 byte1 byte2 byte3	ESC 4 ASCII(byte1) ASCII(byte2) ASCII(byte3)
CLOCK SET-UP	27 33 70 "stringa"	1B 21 46 "stringa'	ESC ! F ASCII("stringa")
CLOCK READING	27 33 102	1B 21 66	ESC ! f
TIME Visualization on the Display	27 33 116 r c	1B 21 74 r c	ESC ! t ASCII(r) ASCII(c)
DATE Visualization on the Display	27 33 100 r c	1B 21 64 r c	ESC ! d ASCII(r) ASCII(c)
Show of REVERSE Attribute	27 48 80	1B 30 50	ESC O P
ABLE Attribute	14	E	SO
DISABLE Attribute	15	F	SI
ZOOM Char Setting	27 201 zoom	1B C9 zoom	ESC ASCII(201) ASCII(zoom)
VERTICAL / ORIZONTAL Setting Elaboration	27 207 elong	1B CF elong	ESC ASCII(207) ASCII(elong)
Visualization pf Chars Writing Direction	27 210 dir	1B D2 dir	ESC ASCII(210) ASCII(dir)
Visualization of Cursor Position at PIXEL Level	27 206 rifa colL colH	1B CE rifa colL colH	ESC ASCII(206) ASCII(riga( ASCII(colL) ASCII(colH)
SHOW RECTANGLE	27 202 byte0...bytr5	1B CA byte0...bytr5	ESC ASCII(202) ASCII(byte0) ...ASCII(byte5)
SHOW a LINE	27 203 byte0...bytr5	1B CB byte0...bytr5	ESC ASCII(203) ASCII(byte0) ...ASCII(byte5)
FILLING UP of a RECTANGLE	27 204 byte0...bytr5	1B CC byte0...bytr5	ESC ASCII(204) ASCII(byte0) ...ASCII(byte5)
SHOW of a CIRCLE or a ARC	27 205 byte0...bytr5	1B CD byte0...bytr5	ESC ASCII(205) ASCII(byte0) ...ASCII(byte5)
SHOW CARTESIAN Plane	27 228 byte0...bytr7	1B E4 byte0...bytr7	ESC ASCII(228) ASCII(byte0) ...ASCII(byte7)
SHOW FILL TRIANGLE on the RIGHT SIDE	27 230 riga colL colH	1B E6 riga colL colH	ESC ASCII(230) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW EMPETY TRIANGLE on the RIGHT SIDE	27 231 riga colL colH	1B E7 riga colL colH	ESC ASCII(231) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW FULL TRIANGLE at the BOTTOM SIDE	27 232 riga colL colH	1B E8 riga colL colH	ESC ASCII(232) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW EMPETY TRIANGLE at the BOTTOM SIDE	27 233 riga colL colH	1B E9 riga colL colH	ESC ASCII(233) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW FULL TRIANGLE on the LEFT SIDE	27 234 riga colL colH	1B EA riga colL colH	ESC ASCII(234) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW EMPETY TRIANGLE on the LEFT SIDE	27 235 riga colL colH	1B EB riga colL colH	ESC ASCII(235) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW FULL TRIANGLE UPPER SIDE	27 236 riga colL colH	1B EC riga colL colH	ESC ASCII(236) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW EMPETY TRIANGLE UPPER SIDE	27 237 riga colL colH	1B ED riga colL colH	ESC ASCII(237) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW FULL CIRCLE (2-PIXELS RAY)	27 238 riga colL colH	1B EE riga colL colH	ESC ASCII(238) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW EMPTY CIRCLE (2-PIXELS RAY)	27 239 riga colL colH	1B EF riga colL colH	ESC ASCII(239) ASCII(riga) ASCII(colL) ASCII(colH)
SHOW PIXEL	27 229 riga colL colH	1B E5 riga colL colH	ESC ASCII(229) ASCII(riga) ASCII(colL) ASCII(colH)
BEEP - BUZZER	07	07	BEL

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