Maple Systems MAP450D User Manual

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1010-0101, Rev. 00

Operation Manual

808 134th Street SW, Suite 120

Everett, WA 98204, USA Phone: (425) 745-3229

Fax: (425) 745-3429

E-mail: maple@maple-systems.com

Web: www.maple-systems.com

A B C D FE

H I J K M

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Table of Contents

INTRODUCTION: Welcome ......................2

About Your Documentation .....................2

Conventions ..............................2

Operational Overview ..........................3

CHAPTER 1: OIT Configuration ...................4

Configuration Mode ...........................4

Operating Parameters ..........................6

Display Viewing Angle Setting ...............6

Baud Rate Setting..........................6

Parity Setting .............................7

Data Bits Setting...........................7

Stop Bits Setting...........................8

Handshaking Setting........................8

Software Handshaking ..................9

Hardware Handshaking..................9

No Handshaking .......................9

Operating Mode Setting ....................10

Line Terminator Setting ....................10

Append Linefeed Setting ...................11

Local Echo Setting ........................11

Block Echo Setting........................12

Turn-Around Delay Setting .................12

Delayed Linefeed Setting ...................13

Use 3-Wire RS-485 Setting .................13

Network Address Setting ...................14

Tab Width Setting ........................14

Cursor Type Setting .......................15

Wrap Around Setting ......................15

Local Keyboard Setting ....................16

Key Click Setting .........................16

Local Setup Setting .......................17

Passwords Setting.........................17

CHAPTER 2: Operating Modes ...................18

Interactive Mode .............................18

Block Mode .................................19

Network Mode...............................20

Sending Data to the OITs ...................20

Receiving Data from the OITs ...............21

Sending the Same Data to all OITs ...........21

Network Addressing.......................21

Sample Network Session ...................22

CHAPTER 3: Using the OIT’s Display .............24

Extended Character Set ........................24

Displaying Text from the OIT’s Keypad...........24

Displaying Text from the Host Controller..........25

Using a Display Variable ...................26

Displaying Text from Predefined Messages ........27

Optional Settings for Predefined Messages .....27

APPENDIX A: Control Commands ................28

Configuration Control Commands ...............29

Set LCD Viewing Angle Command...........29

Save Configuration Parameters Command .....29

Request Configuration Data Command ........29

Display and Cursor Format Control Command . . 30

Display Format Control Command ...........30

Keyboard Control Command ................30

Set Turn-Around Delay Command ...........30

Set Tab Character Width Command ..........30

Set Communications Parameters Command ....31

Enable Handshaking Command ..............31

Set Operating Mode Command ..............31

Set Line Terminator Command ..............31

General Purpose Control Commands .............31

Echo Back Text Command..................31

Sound Bell Command .....................32

Display Message Command.................32

Clear Output Buffer Command ..............32

Poll OIT Buffer Command..................32

Retransmit Last Keyboard Buffer Command....32

Request Keyboard Buffer Status Command ....33

Enable Block Mode Command ..............33

Disable Block Mode Command ..............33

Display Control Commands ....................33

Read Display Variable Command ............33

Write Display Variable Command ............34

Create Display Variable Command ...........34

Set Cursor Position Command ...............34

Read Cursor Position Command .............34

APPENDIX B: Control Codes .....................36

APPENDIX C: Extended Character Set ............38

APPENDIX D: ASCII Table ......................40

APPENDIX E: Troubleshooting ...................42

Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Maple Systems, Inc.

Introduction 2

INTRODUCTION

Welcome

Thank you for purchasing a Maple Systems MAP450D. You have selected a rugged, reliable and powerful operator interface terminal (OIT) for your application. This manual describes the general operation and features of the MAP450D.

About Your Documentation

The documentation for the MAP450D consists of:

MAP450D Installation Manual (shipped with each OIT) — Covers the installation

•

requirements of the OIT. MAP450D Operation Manual (shipped with each OIT) — Covers the general operation

•

and features of the OIT. STEP1 Protocol Operation Manual (shipped with STEPware-100) — Covers the

•

operation of STEPware-100.

Conventions

You will find the following typographic conventions throughout this manual.

This

bold Characters that you must type exactly as they appear. For example, if

italic Place holders for information you must provide. For example, if you

ALL CAPITALS Directory names, file names, key names, and acronyms.

SMALL CAPS Non-printable ASCII control characters.

KEY1+KEY2 A plus sign (+) between key names means to press and hold down the

KEY1, KEY2 A comma (,) between key names means to press and release the keys

Represents

you are directed to type a:setup, you should type all the bold characters exactly as they are printed.

are directed to type filename, you should type the actual name for a file instead of the word shown in italic type.

first key while you press the second key.

one after the other.

1010-0101, Rev. 00

3 MAP450D Operation Manual

Operational Overview

The MAP450D Operator Interface Terminal (OIT) provides the human-machine interface between an operator and an ASCII compatible computer or host controller. Any controller that is capable of sending and receiving ASCII characters through a serial port can potentially communicate to the MAP450D.

The MAP450D receives and sends simple ASCII character strings. It accepts:

printable ASCII characters — which immediately display on the OIT

•

non-printable ASCII control characters (Control Codes) — which directly affect the

•

OIT’s display and special ASCII character combinations (Control Commands).

•

Control Commands cause the OIT to:

modify the OIT’s configuration parameters

•

echo back text

•

poll or clear the OIT’s buffers

•

display one of up to 500 predefined messages

•

or sound the OIT’s internal buzzer

•

1010-0101, Rev. 00

Chapter 1: OIT Configuration 4

CHAPTER 1

OIT Configuration

The OIT has many operating parameters that control how it communicates to the host controller. These operating parameters can be changed in three ways: from the OIT’s keyboard when the OIT is in Configuration mode, when the host controller sends a Configuration Control Command, or by downloading a STEPware-100 project. This chapter explains Configuration mode and describes all of the OIT’s operating parameters.

Refer to the STEP1 Protocol Operation Manual - Chapter 1: Getting Started for

instructions on creating and downloading a STEPware-100 project.

Configuration Mode

Configuration mode allows the OIT to communicate with a computer using the STEPware-100 configuration software. It also provides the ability to make quick changes to the operation of the OIT without using STEPware-100. Configuration mode can only be accessed when power is being applied to the OIT.

To place the OIT into Configuration mode:

1. While applying power to the OIT, press and hold the OIT’s CLEAR key while the following messages appear: Initializing, Configuration mode!, and Parameters? MODIFY.

Notes: 1. To exit configuration mode, press the OIT’s CLEAR key.

2. If the Initializing Configuration mode! message is followed by Terminal Now Ready!, the OIT did not enter Configuration mode and you need to repeat step 1.

3. If the Disp View Angle: message displays instead of Parameters?, Local Setup Access has been disabled. You will need to enable Local Setup Access by connecting the OIT to a host controller and having the host controller send the Keyboard Control command to the OIT. Refer to Appendix A: Control Commands for more information. Please refer to Appendix E: Troubleshooting for more tips on entering configuration mode.

4. If the OIT’s display remains blank and you hear a steady beeping, the OIT does not contain a complete project and is waiting in download mode for STEPware-100 to

download a project. Refer to the STEP1 Protocol Operation Manual - Chapter 1:

Getting Started for instructions on creating and downloading a STEPware-100 project.

2. At Parameters?, press the OIT’s Period (.) key to alternate between MODIFY and VIEW, then press the OIT’s ENTER key to accept and continue.

1010-0101, Rev. 00

Option Description Result

MODIFY Allows you to enter

Download/Upload mode or modify the OIT’s current operating parameters.

VIEW Displays the OIT’s current

operating parameters.

Displays Password? (refer to step 3)

NOTE: You must start entering your password or press the OIT’s ENTER key within 5 seconds, or the OIT exits Configuration mode.

Displays the first operating parameter (refer to step 5).

5 MAP450D Operation Manual

3. At Password?, type the setup password and then press the OIT’s ENTER key. If there is no setup password, just press the OIT’s ENTER key. Down/Upload mode? Y displays.

4. At Down/Upload mode?, press the OIT’s Period (.) key to alternate between Y and N, then press the OIT’s ENTER key to accept and continue.

Option Description Result

Y Allows you to enter

Download/Upload mode for communication with STEPware-100.

N Displays the OIT’s current

operating parameters.

Displays: Ready for Transfer

to/from STEPware!

Refer to the STEP1 Protocol Operation Manual -

Chapter 1: Getting Started for instructions on creating and downloading a STEPware-100 project.

Displays the first operating parameter (refer to step 5).

5. The following Level 1 menus appear in order. If you select YES at a Level 1 menu, the corresponding Level 2 menus appear. If you select NO at a Level 1 menu, the next Level 1 menu appears. At any menu, press the OIT’s Period (.) key to alternate between the options.

Level 1 Menus Level 2 Menus Options

Disp View Angle: 75d, 90d

Modify communication parameters?

Modify operating parameters?

Modify display/keybd parameters?

Setup correct? YES — saves changes and exits

Baud Rate: Parity: Data Length: Stop Bits:

Op Mode: Handshake: Line Term: Append LF: Local Echo: Block Echo: Turn Delay: Delayed LF: RS485 3 Wire: Network Address:

Tab Width: Cursor: Wrap Around: Key board: KeyClick: Setup Access: Setup Password

300, 600, 1200, 2400, 4800, 9600, 19200 NONE, ODD, EVEN, MARK, SPACE 7, 8 1, 2

INTERACTIVE, BLOCK, NETWORK NONE, XON/XOFF, RTS/CTS, BOTH CR, LF, CR/LF, ETX ENABLED, DISABLED ENABLED, DISABLED ENABLED, DISABLED NONE, 50 MSEC, 100 MSEC, 250 MSEC NO, YES NO, YES 1to255

1 SPACE, 4 SPACES, 8 SPACES UNDERLINE, NONE ENABLED, DISABLED ENABLED, DISABLED ENABLED, DISABLED NO, YES 5 numbers in any combination

Configuration mode. NO — returns to Down/Upload mode? (refer to step 4).

1010-0101, Rev. 00

Chapter 1: OIT Configuration 6

Operating Parameters

The OIT has many operating parameters which determine how it communicates to the host controller. These operating parameters can be changed in three ways: from the OIT’s keyboard when the OIT is in Configuration mode, when the host controller sends a Configuration Control Command, or by downloading a STEPware-100 project. Each operating parameter is described in detail below.

Display Viewing Angle Setting

The OIT has an adjustable viewing angle of 75° and 90°. A viewing angle of 75º means that the LCD provides the sharpest contrast when viewed from a point slightly below the display. An angle of 90º means that the sharpest contrast occurs when the LCD is viewed from a point perpendicular to the face of the display.

Factory Default: 90°

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Display (LCD) group box, select the desired Viewing Angle from the option buttons.

To modify this parameter in

1. At Disp View Angle:, select the desired Viewing Angle. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set LCD Viewing Angle control command. Refer to Appendix A: Control Commands for more information.

Baud Rate Setting

This parameter determines the baud rate that the OIT uses to communicate to the host controller. Options are 300, 600, 1200, 2400, 4800, 9600, and 19200 baud. When the OIT is in Configuration mode, 9600 baud is used to communicate to STEPware-100 regardless of how this setting has been configured.

Factory Default: 9600

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT - Host Serial Communications Settings group box, select the desired baud rate from the Baud Rate option buttons.

STEPware-100:

Configuration mode:

host controller:

STEPware-100:

1010-0101, Rev. 00

To modify this parameter in

1. At Baud Rate:, use the OIT’s Period (.) key to select the desired baud rate. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set Communications Parameters control command. Refer to Appendix A: Control Commands for more information.

Configuration mode:

host controller:

7 MAP450D Operation Manual

Parity Setting

This parameter determines the parity that the OIT uses to communicate to the host controller. Options are Even, Odd, None, Mark, Space. When the OIT is in Configuration mode, no parity is used to communicate to STEPware-100 regardless of how this setting has been configured.

Factory Default: No Parity

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT - Host Serial Communications Settings group box, select the desired parity from the Parity option buttons.

To modify this parameter in

1. At Parity:, use the OIT’s Period (.) key to select the desired parity. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set Communications Parameters control command. Refer to Appendix A: Control Commands for more information.

Data Bits Setting

This parameter determines the number of data bits that the OIT uses to communicate to the host controller. Options are 7 Bits or 8 Bits. When the OIT is in Configuration mode, 8 data bits are used to communicate to STEPware-100 regardless of how this setting has been configured.

Factory Default: 8 Bits

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT - Host Serial Communications Settings group box, select the desired number of data bits from the Data Bits option buttons.

STEPware-100:

Configuration mode:

host controller:

STEPware-100:

1010-0101, Rev. 00

To modify this parameter in

Configuration mode:

1. At Data Length:, use the OIT’s Period (.) key to select the desired number of data bits. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Set Communications Parameters control command. Refer to Appendix A: Control Commands for more information.

Chapter 1: OIT Configuration 8

Stop Bits Setting

This parameter determines the number of stop bits that the OIT uses to communicate to the host controller. Options are 1 Bit or 2 Bits. When the OIT is in Configuration mode, one stop bit is used to communicate to STEPware-100 regardless of how this setting has been configured.

Factory Default: 1 Bit

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT - Host Serial Communications Settings group box, select the desired number of stop bits from the Stop Bits option buttons.

To modify this parameter in

1. At Stop Bits:, use the OIT’s Period (.) key to select the desired number of stop bits. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set Communications Parameters control command. Refer to Appendix A: Control Commands for more information.

Handshaking Setting

This parameter determines the type of handshaking that is used between the OIT and the host controller. Handshaking allows the host controller to regulate when the OIT sends information; preventing the OIT from overwriting the host controller’s serial buffer or vice versa. Options are software handshaking (XON/XOff), hardware handshaking (RTS/CTS), both, or none. When the OIT is in Configuration mode, no handshaking is used to communicate to STEPware-100 regardless of how this setting has been configured.

Factory Default: No Handshaking

STEPware-100:

Configuration mode:

host controller:

To modify this parameter using

STEPware-100:

1. Open the Configuration Editor.

2. In the OIT - Host Serial Communications Settings group box, select the desired handshaking in the Handshaking list box.

To modify this parameter in

Configuration mode:

1. At Handshake:, use the OIT’s Period (.) key to select the desired handshaking. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Enable Handshaking control command. Refer to Appendix A: Control Commands for more information.

1010-0101, Rev. 00

9 MAP450D Operation Manual

Software Handshaking

Software handshaking, which uses the XON/XOff format, is available only in Interactive mode. The following rules apply:

1. When the host controller sends an XOFF control code (hexadecimal 13), the OIT halts transmission of any data to the host controller until the host controller sends an XON control code (hexadecimal 11). While transmission is halted, each OIT keypress continues to be displayed on the OIT but no data is transmitted to the host controller. Instead, each character is temporarily stored in an 8 byte ‘Handshake’ buffer. When the handshake buffer is full, each OIT keypress causes the OIT to sound a warning beep. The data continues to be displayed on the OIT but is not stored in the Handshake buffer. Therefore, the host controller does not receive any data that is entered when the handshake buffer is full.

2. When the host controller sends the XON control code, the OIT sends the contents of the Handshake buffer to the host controller before proceeding normally.

3. The OIT has the option of sending the XOFF control code to the host controller if the host controller is sending data to the OIT faster than the OIT can process it. When the OIT sends the XOFF control code to the host controller, the OIT ignores any further transmissions from the host controller until the OIT sends the XON control code. The OIT has an internal buffer size of 200 characters. When the OIT’s buffer contains 170 characters, the OIT sends the XOFF control code. The OIT sends the XON control code when the buffer is empty (the time required to empty the buffer varies according to the baud rate but is approximately 150 msec.).

Hardware Handshaking

Hardware handshaking, which uses the CTS/RTS format, is available only in Interactive and Block modes. The following rules apply:

1. When the host controller deasserts the CTS line, the OIT halts transmission of any data to the host controller until the CTS line is reasserted. While transmission is halted, each OIT keypress continues to be displayed on the OIT but no data is transmitted to the host controller. Instead, each character is temporarily stored in an 8 byte ‘Handshake’ buffer. When the handshake buffer is full, each OIT keypress causes the OIT to sound a warning beep. The data continues to be displayed on the OIT but is not stored in the Handshake buffer. Therefore, the host controller does not receive any data that is entered when the handshake buffer is full.

2. When the host controller reasserts the CTS line, the OIT sends the contents of the Handshake buffer to the host controller before proceeding normally.

3. The OIT has the option of deasserting the RTS line if the host controller is sending data to the OIT faster than the OIT can process it. When the OIT deasserts the RTS line, the OIT ignores any further transmissions from the host controller until the OIT reasserts the RTS line. The OIT has an internal buffer size of 200 characters. When the OIT’s buffer contains 170 characters, the OIT deasserts the RTS line. The OIT reasserts the RTS line when the buffer is empty (the time required to empty the buffer varies according to the baud rate but is approximately 150 msec.).

No Handshaking

1010-0101, Rev. 00

This setting disables any software or hardware handshaking. Although this is the easiest to use, it is possible for the OIT to overwrite the host controller’s serial buffer, or vice versa.

Chapter 1: OIT Configuration 10

Operating Mode Setting

This parameter determines whether the OIT operates in Interactive, Block, or Network mode. Refer to Chapter 2: Operating Modes for more information.

Factory Default: Interactive

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the desired operating mode from the Operating Mode option buttons.

To modify this parameter in

1. At Op Mode:, use the OIT’s Period (.) key to select the desired operating mode. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set Operating Mode control command. Refer to Appendix A: Control Commands for more information.

Line Terminator Setting

This parameter determines which ASCII control character is used for the line terminator. Options are CR, LF, CR/LF, or ETX. The line terminator performs different functions in Interactive, Block, and Network modes. In all three modes, the line terminator is sent to the host controller when the OIT responds to a control command and when the OIT’s ENTER key is pressed.

In Interactive mode, if local echo is enabled when the OIT’s ENTER key is pressed, the line terminator is also sent to the OIT’s display. In Block or Network mode, if block echo is enabled when the OIT’s ENTER key is pressed, the line terminator is also sent to the OIT’s display. In Network mode, the line terminator is used to indicate that the host controller has finished communicating to a particular OIT. The line terminator, therefore, notifies the other terminals that the next two bytes received from the host controller indicate which OIT the host controller wants to talk to.

STEPware-100:

Configuration mode:

host controller:

1010-0101, Rev. 00

Refer to Chapter 2: Operating Modes for more information on the use of the line terminator in Interactive, Block, and Network modes.

Factory Default: CR

To modify this parameter using

STEPware-100:

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the desired line terminator from the Line Terminator option buttons.

To modify this parameter in

Configuration mode:

1. At Line Term:, use the OIT’s Period (.) key to select the desired line terminator. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Set Line Terminator control command. Refer to Appendix A: Control Commands for more information.

11 MAP450D Operation Manual

Append Linefeed Setting

This parameter determines whether a linefeed LF control character (0x0A) will be appended to any carriage return the host controller. If enabled, this will cause the cursor of the OIT display to move down to the next line of the display when a useful when using controllers which can send ASCII strings followed by a character but are unable to append the Without sending a

LF control character, the host is forced to display characters on the

OIT screen on one line of the display only. This feature allows any host that is unable to send the

LF control character to use all of the lines of the OIT display.

Factory Default: Disabled

CR control character (0x0D) that is sent to the OIT from

CR is received from the host. This feature is

CR control

LF control character to any ASCII string sent.

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Append Line Feed check box.

To modify this parameter in

1. At Append LF:, use the OIT’s Period (.) key to enable or disable the Append Line Feed feature. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. This feature cannot be changed from the host controller.

Local Echo Setting

This parameter determines whether local echo is used when the OIT is operating in Interactive mode. If enabled, each character sent to the host controller from an OIT keypress is also sent to the OIT’s display.

Factory Default: Enabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Local Echo Enabled check box.

STEPware-100:

Configuration mode:

host controller:

STEPware-100:

1010-0101, Rev. 00

To modify this parameter in

Configuration mode:

1. At Local Echo:, use the OIT’s Period (.) key to enable or disable local echo. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Display Format control command. Refer to Appendix A: Control Commands for more information.

Chapter 1: OIT Configuration 12

Block Echo Setting

This parameter determines whether block echo is used when the OIT is operating in Block or Network mode. If enabled, each character sent to the host controller from an OIT keypress is also sent to the OIT’s display. If disabled, asterisks are sent to the OIT’s display in place of the characters.

Factory Default: Enabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Block Echo Enabled check box.

To modify this parameter in

Configuration mode:

1. At Block Echo:, use the OIT’s Period (.) key to enable or disable block echo. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Display Format control command. Refer to Appendix A: Control Commands for more information.

Turn-Around Delay Setting

This parameter determines the amount of time the OIT waits to respond after receiving a command from the host controller. Options are No Delay, 50 msec, 100 msec, or 250 msec. Be sure to pick a turn-around delay that allows the host controller enough time to prepare for the OIT’s response.

Factory Default: No Turn-Around Delay

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the desired turn-around delay in the Turn-Around Delay list box.

STEPware-100:

host controller:

STEPware-100:

1010-0101, Rev. 00

To modify this parameter in

Configuration mode:

1. At Turn Delay:, use the OIT’s Period (.) key to select the desired turnaround delay. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Set Turn-Around Delay control command. Refer to Appendix A: Control Commands for more information.

13 MAP450D Operation Manual

Delayed Linefeed Setting

This parameter determines whether the OIT executes an LF control code (hexadecimal 0A) immediately or when the next character is received. If enabled, the OIT does not execute an LF control code received from the host controller until the next character is received. If disabled, the OIT immediately executes the LF control code. This parameter is used most often with host controllers that automatically append an LF control code to each data transmission.

Factory Default: Disabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Delayed LineFeed Enabled check box.

To modify this parameter in

Configuration mode:

1. At Delayed LF:, use the OIT’s Period (.) key to enable or disable delayed linefeed. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Display and Cursor Format control command. Refer to Appendix A: Control Commands for more information.

Use 3-Wire RS-485 Setting

This parameter determines whether the OIT disables the RS-485 receiver when the OIT transmits data to the host controller. If the OIT is wired to the host controller using 3-wire RS-485 half duplex communications, then this option must be enabled for the OIT to operate properly. Conversely, if the OIT is wired to the host controller using 5-wire RS-485 full duplex communications, this setting must be disabled to allow the host controller to send a command to the OIT while waiting for a response from a prior command.

Factory Default: Disabled

STEPware-100:

host controller:

1010-0101, Rev. 00

To modify this parameter using

STEPware-100:

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Use 3-Wire RS-485 check box.

To modify this parameter in

Configuration mode:

1. At RS485 3 Wire:, use the OIT’s Period (.) key to enable or disable 3-Wire RS-485. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. This feature cannot be changed from the host controller.

Chapter 1: OIT Configuration 14

Network Address Setting

This parameter determines the network address used by the host controller to communicate with this OIT when in Network mode. Options are 1 to 255.

Factory Default: Not Applicable

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, enter the desired network address in the Network Addr. text box.

To modify this parameter in

1. At Network Address:, use the OIT’s Period (.) key to select the desired network address. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Set Operating Mode control command. Refer to Appendix A: Control Commands for more information.

Tab Width Setting

This parameter determines how many spaces the OIT moves the cursor when the HT control code (hexadecimal 09) is received from the host controller. Options are 1 Space, 4 Spaces, and 8 Spaces.

Factory Default: 1 Space

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the desired tab width in the Tab Width list box.

STEPware-100:

Configuration mode:

host controller:

STEPware-100:

1010-0101, Rev. 00

To modify this parameter in

Configuration mode:

1. At Tab Width:, use the OIT’s Period (.) key to select the desired tab width. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Set Tab Character Width control command. Refer to Appendix A: Control Commands for more information.

15 MAP450D Operation Manual

Cursor Type Setting

This parameter determines the type of cursor used in the OIT’s display. Options are No Cursor and Underline.

Factory Default: Underline

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the desired cursor type in the Cursor Type list box.

To modify this parameter in

1. At Cursor:, use the OIT’s Period (.) key to select the desired cursor type. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Display and Cursor Format control command. Refer to Appendix A: Control Commands for more information.

Wrap Around Setting

This parameter determines whether the OIT will use ‘word wrapping’ when displaying characters on the OIT screen. If disabled, any characters received from the host or from the keyboard of the OIT are displayed on the OIT screen at the location of the cursor. If the cursor is on the last column of a line, then the incoming character overwrites any character that is currently displayed on the last column and the cursor does not move.

If the wrap around feature is enabled, then the cursor will drop down to the beginning of the next line when it reaches the end of the current line.

STEPware-100:

Configuration mode:

host controller:

Note: The OIT does not support the wrap around feature when the operating mode is in Block

or Network mode and the character to be displayed comes from a keypress on the OIT.

Factory Default: Disabled

To modify this parameter using

STEPware-100:

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Wrap Around check box.

To modify this parameter in

Configuration mode:

1. At WrapAround:, use the OIT’s Period (.) key to enable or disable the Wrap Around feature. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. This feature cannot be changed from the host controller.

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Chapter 1: OIT Configuration 16

Local Keyboard Setting

This parameter determines whether the OIT’s keyboard is enabled.

Factory Default: Enabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Local Keyboard Enabled check box.

To modify this parameter in

1. At Keyboard:, use the OIT’s Period (.) key to enable or disable the local keyboard. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Keyboard control command. Refer to Appendix A: Control Commands for more information.

Key Click Setting

This parameter determines whether an audible key click occurs whenever a key is pressed on the OIT’s keyboard.

Factory Default: Enabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Key Click Enabled check box.

STEPware-100:

Configuration mode:

host controller:

STEPware-100:

To modify this parameter in

Configuration mode:

1. At KeyClick:, use the OIT’s Period (.) key to enable or disable the local keyboard. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. Use the Keyboard control command. Refer to Appendix A: Control Commands for more information.

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17 MAP450D Operation Manual

Local Setup Setting

This parameter determines whether the OIT allows you to access Configuration mode. If this parameter is disabled, you will not be able to enter Configuration mode. Since you must enter Configuration mode to reprogram the OIT, you will not be able to reprogram the OIT until the host controller sends a Keyboard control command enabling local setup again.

Factory Default: Enabled

To modify this parameter using

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, select the Local Setup Enabled check box.

To modify this parameter in

1. At Setup Access:, use the OIT’s Period (.) key to enable or disable local setup. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

1. Use the Keyboard control command. Refer to Appendix A: Control Commands for more information.

Passwords Setting

This parameter determines the five-digit numeric password used to restrict entry into Configuration mode. Configuration mode is used to change the OIT’s operating parameters or to download/upload a project to/from STEPware-100.

When attempting to enter Configuration mode, the OIT prompts you to enter the Setup Password. If the default setting of “00000” has not been changed, you simply press the OIT’s ENTER key to access Configuration mode. If the setup password has been changed, you must enter the correct five-digit numeric password to access Configuration mode.

NOTE:If you forget your password, call Maple Systems Technical Support department at

425-745-3229 for help accessing Configuration mode.

STEPware-100:

Configuration mode:

host controller:

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Factory Default: 00000

To modify this parameter using

STEPware-100:

1. Open the Configuration Editor.

2. In the OIT Operational Settings group box, choose the Editor button to open the Password Editor dialog box.

3. In the Setup text box, enter a five-digit numeric password.

4. Choose the Done button.

To modify this parameter in

Configuration mode:

1. At Setup Password, use the OIT’s numeric keys to enter a five-digit numeric password. Refer to the Configuration Mode section in this chapter for more information.

To modify this parameter from the

host controller:

1. This feature cannot be changed from the host controller.

Chapter 2: Operating Modes 18

CHAPTER 2

Operating Modes

Your OIT can be programmed to operate in one of three operating modes: Interactive, Block, or Network. These modes affect how the OIT sends data to and receives data from the host controller. This chapter explains the differences between the three operating modes. Refer to Chapter 1: OIT Configuration for information on how to change the operating mode.

Interactive Mode

In Interactive mode, the OIT immediately sends data to the host controller. For example, pressing the OIT’s 1 key sends the ASCII character 1 to the host controller. Interactive mode is most often used in applications that require simple one-key responses from the OIT.

If local echo mode is enabled, any ASCII characters sent to the host controller are also displayed on the OIT. When the cursor reaches the end of the current display line, additional characters overwrite the character in the last column.

The following table lists the behavior of each OIT key in Interactive mode.

OIT Key Data Sent to Host Local Echo Mode Operation

A to Z A to Z Displays A to Z

Shift + (A to Z) a to z Displays a to z

0 to 9 0 to 9 Displays 0 to 9

Shift + (0 =) = Displays equal sign (=)

Shift + (1 #) # Displays number sign (#)

Shift + (2 ?) ? Displays question mark (?)

Shift + (3 *) * Displays asterisk (*)

Shift + (4 :) : Displays colon (:)

Shift + (5 %) % Displays percent sign (%)

Shift + (6 /) / Displays slash (/)

Shift + (7 ,) , Displays comma (,)

Shift + (8 $) $ Displays dollar sign ($)

Shift + (9 +) + Displays plus sign (+)

Space SP Displays space

. - . Displays period (.)

Shift + (. -) - Displays hyphen or minus sign (-)

Clear FF

Clears the display and moves the cursor to the first position of the top line.

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19 MAP450D Operation Manual

OIT Key Data Sent to Host Local Echo Mode Operation

Deletes the character to the left of the cursor and moves the cursor one position left. If the cursor is on

Delete DEL

Enter

Line Terminator

ETX, CR, LF,orCR/LF)

(

the first position of a line, this key has no affect. If the cursor is on the last position of a line and a character is displayed there, the character is deleted and the cursor remains on the last position of the line.

If the line terminator is If the line terminator is the first column of the current line. If the line terminator is first column of the next line. If the cursor is on Line #2 when an characters on Line #2 move to Line #1.

LF or CR/LF, the cursor moves to the

ETX, this key has no affect. CR, the cursor moves to

LF or CR/LF is received, any

Block Mode

In Block mode, when the OIT operator presses a key, the OIT sends the data to the OIT’s display and stores the data in the Keyboard Input Buffer. If the cursor reaches the end of the display line, the OIT sounds an error beep and stops accepting data. Storing data in the Keyboard Input Buffer, allows the OIT operator to see the data on the OIT’s display and make changes before sending the data to the host controller. When the OIT operator presses the OIT’s ENTER key, the contents of the Keyboard Input Buffer are immediately sent to the host controller along with the line terminator.

Any attempt by the host controller to write to the OIT’s display, clears the Keyboard Input Buffer. Therefore, the host controller should determine if the OIT operator is in the process of entering data before writing to the OIT’s display. The Request Keyboard Buffer Status control command is available for this purpose. If the host controller does need to write to the OIT’s display while the OIT operator is inputting data, the host controller can set up a display variable on the OIT’s display using the Create Display Variable control command. Writing to a display variable allows the host controller to display time-critical data while still allowing the OIT operator to enter data. Refer to Appendix A: Control Commands for more information on the Request Keyboard Buffer Status and Create Display Variable control commands.

The following table lists the behavior of each OIT key in Block mode.

OIT Key Operation

A to Z Sends A to Z to the Keyboard Input Buffer and the OIT’s display.

Shift + (A to Z) Sends a to z to the Keyboard Input Buffer and the OIT’s display.

0 to 9 Sends 0 to 9 to the Keyboard Input Buffer and the OIT’s display.

Shift + (0 =) Sends equal sign (=) to the Keyboard Input Buffer and the OIT’s display.

Shift + (1 #) Sends number sign (#) to the Keyboard Input Buffer and the OIT’s display.

Shift + (2 ?) Sends question mark (?) to the Keyboard Input Buffer and the OIT’s display.

Shift + (3 *) Sends asterisk (*) to the Keyboard Input Buffer and the OIT’s display.

Shift + (4 :) Sends colon (:) to the Keyboard Input Buffer and the OIT’s display.

Shift + (5 %) Sends percent sign (%) to the Keyboard Input Buffer and the OIT’s display.

Shift + (6 /) Sends slash (/) to the Keyboard Input Buffer and the OIT’s display.

Shift + (7 ,) Sends comma (,) to the Keyboard Input Buffer and the OIT’s display.

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Chapter 2: Operating Modes 20

OIT Key Operation

Shift + (8 $) Sends dollar sign ($) to the Keyboard Input Buffer and the OIT’s display.

Shift + (9 +) Sends plus sign (+) to the Keyboard Input Buffer and the OIT’s display.

Space Sends space to the Keyboard Input Buffer and the OIT’s display.

. - Sends period (.) to the Keyboard Input Buffer and the OIT’s display.

Shift + (. -)

Clear

Delete

Enter

Sends hyphen or minus sign (-) to the Keyboard Input Buffer and the OIT’s display.

Clears the contents of the Keyboard Input Buffer, moves the cursor to the original data entry starting position, and clears all characters to the right of the cursor.

Deletes the last character entered into the Keyboard Input Buffer, deletes the character to the left of the cursor and moves the cursor one position left. If the cursor is at the original data entry starting position, this key has no affect. If the cursor is on the last position of a line and a character is displayed there, the character is deleted and the cursor remains on the last position of the line.

Sends the contents of the Keyboard Input Buffer immediately to the host controller along with the line terminator. Moves the cursor to the original data entry starting position.

Network Mode

If multiple OITs are connected to one host controller, then the OITs must be configured to operate in Network mode. The host controller, which operates as the network master and polls the OITs for responses, must initiate all communications. To prevent all of the OITs on the network from responding at the same time, an addressed message scheme is used for the network protocol.

Sending Data to the OITs

To communicate with a particular OIT, the host controller sends that OIT’s network address in hexadecimal as two ASCII characters. This is called “logging on” to the OIT. The host controller can then communicate with that OIT, the same as in Block mode. The host controller must send a line terminator to “log off” or close communications with that OIT before addressing another OIT.

The line terminator alerts all OITs on the network that a new communication session is about to begin, and that the next two characters sent will be an OIT’s network address. Each OIT on the network compares the network address sent by the host controller with its own network address. If they match, the OIT responds to any characters sent by the host controller. If they do not match, the OIT monitors the data stream for the next line terminator sent.

Since the line terminator is used by the host controller to “log off” or close communications with one OIT before starting to talk to another, if the host controller wants to remain logged on to the current OIT, the host controller must send the command terminator ( controller sends a command that ends with the command terminator, further commands or data sent to the current OIT do not have to include the OIT’s network address. It is important to note that the OIT always includes its network address and a line terminator when responding to the host controller.

STX) with control commands, instead of the line terminator. After the host

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21 MAP450D Operation Manual

When using Network mode, always follow these rules:

1. Every OIT on the network must be assigned a unique network address.

2. Every OIT on the network must be programmed to use the same line terminator.

3. Always have the host controller send a line terminator immediately before sending an OIT network address. There are two reasons for this:

If one of the OITs on the network suddenly losespower and reinitializes, it will not know what

•

“state” the communications session is in. Therefore, it will not respond to the host controller until the host controller sends a line terminator.

If any other characters are present on the data line between the time that the host controller

•

sends the line terminator and the network address, the OIT that the host controller is attempt ing to communicate to may not “log on” because the OIT thinks that the host controller is logged on to another OIT.

Receiving Data from the OITs

When the host controller sends data that requires a response from the OIT, the OIT immediately responds (unless turnaround delay is used). The OIT responds by sending its hexadecimal network address as two ASCII characters followed by the requested data and the line terminator. Each command that requests data is answered separately by the OIT.

As in Block mode, any OIT keypad input is sent to the OIT’s display and the Keyboard Input Buffer. However, once the OIT’s ENTER key is pressed, the contents of the Keyboard Input Buffer are transferred to the Keyboard Output Buffer and the OIT no longer accepts keypad input until the host controller either polls or clears the OIT’s Keyboard Output Buffer. If an attempt is made to enter additional data, the OIT sounds an error beep. If a function key is pressed that has the Send Message Immediately setting enabled, then the output is sent directly to the Keyboard Output Buffer along with any other contents of the Keyboard Input Buffer, just as though the operator had pressed the ENTER key. The OIT will no longer accept keypad input until the host controller either polls or clears the OIT’s Keyboard Output Buffer. If an attempt is made to enter additional data, the OIT sounds an error beep.

Refer to Appendix A: Control Commands for information on the Clear Output Buffer and Poll OIT Buffer control commands.

Sending the Same Data to all OITs

The host controller can send an identical message to all of the OITs on the network by using the global broadcast address of “00”. The OITs do not transmit any data to the host controller when the global address is used; this prevents the OITs from corrupting each other’s messages by trying to talk at the same time. After sending a global broadcast, before the host controller can begin a session with one particular OIT, the host controller must send the line terminator to “log off” all of the OITs on the network.

Network Addressing

The addressing range allowed for networked OITs is from 1 to 255. This implies that up to 255 OITs can be connected to one network. However, the actual number will likely be less, and is due to the loading characteristics of the network connection. Factors such as baud rate, impedance and capacitive loading of the communications line, line impedance of the RS-485 drivers, and total number of OITs on the network all affect performance. If network performance becomes degraded, you may need network boosters or repeaters to increase the number of OITs on the network. For more information on sources for network boosters or repeaters, contact Maple Systems Technical Support at 425-745-3229.

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Chapter 2: Operating Modes 22

Sample Network Session

Below is a sample session showing a host controller communicating with three OITs on a multidrop network. The OITs have network addresses of 1, 30, and 100. The line terminator is set to

NOTE:Spaces are shown for clarity only and should not be used.

Source Message Description

Host 00 ESC m25ETX

Host 01 ESC e HELLO! STX

OIT #1 01 HELLO! ETX

Host ESC ? STX

OIT #1 01 0 ETX

Host ESC eBYE!ETX

OIT #1 01 BYE! ETX

Host 1E ESC w5ETX

Host 64 ESC p STX

OIT #100 64 A ETX

Host ESC r ETX

OIT #100 64 A ETX

ETX.

The host controller sends a global command telling all terminals to display Message #25. Notice that the host controller ended with a line terminator. This “logs off” all of the OITs.

The host controller sends an echo command as a “log on” to OIT #1. Notice that the host controller ends with a command terminator instead of a line terminator. This allows the host controller to continue communicating with OIT #1 without having to send another network address.

OIT #1 responds with its network address, the characters received from the host controller, and a line terminator.

The host controller requests the keyboard status of OIT #1. Notice that the host controller does not specify a network address, since the host controller has not sent a line terminator yet.

OIT #1 responds that no characters are currently stored in the Keyboard Input Buffer and ends with a line terminator.

The host controller sends an echo command as a “log off” to OIT #1. Notice that the host controller ended with a line terminator. Now the other OITs will listen for a new network address.

OIT #1 responds with its network address, the characters received from the host controller, and a line terminator.

The host controller “logs on” to OIT #30 and creates a five character display variable at the current cursor position. Notice that the host controller ended with a line terminator to “log off” OIT #30.

The host controller “logs on” to OIT #100 and polls the Keyboard Output Buffer contents.

OIT #100 responds with its network address, the contents of the Keyboard Output Buffer (which happens to contain the ASCII character sent when the A key was pressed), and the line terminator.

The host controller asks OIT #100 to resend the last transmission.

OIT #100 resends the last transmission and ends with the line terminator.

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23 MAP450D Operation Manual

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Chapter 3: Using the OIT's Display 24

CHAPTER 3

Using the OIT’s Display

The OIT displays data input from the OIT’s keypad, data sent from the host controller, and data stored in predefined messages. When a printable ASCII character is sent to the OIT’s display, it is displayed at the OIT cursor’s current location (unless the host controller is writing to a display variable). The cursor is then advanced one column to the right on the current display line. If the cursor is on the last column of the line, it does not move (unless the wrap around feature is enabled).

The host controller can send control commands and control codes which move the cursor to different locations on the screen, clear the screen, perform a line feed, create a display variable, scroll the screen, etc.

Extended Character Set

In addition to the standard printable ASCII characters, each OIT model has an extended character set which can be displayed. Refer to Appendix C: Extended Character Set for a list of the extended characters available on the MAP450D and the ASCII codes the host controller should send to display them.

To insert an extended character into a predefined message:

1. Start STEPware-100.

2. Open a project that has been configured for your OIT.

3. Display the message you want to insert the extended character into.

4. Position the cursor in the message where you want to insert the extended character.

5. Press F2 to open the Insert Special Character dialog box.

6. Using the arrow keys, select the special character.

7. Choose the Add To List button. The selected special character displays in the text box next to the Add To List button.

8. Choose the Done button to return to the STEPware-100 main screen. The special character displayed in the text box next to the Add To List button displays in the Message Editor.

Displaying Text from the OIT’s Keypad

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In Interactive mode, to display text from the OIT’s keypad, local echo must be enabled. Refer to Chapter 1: OIT Configuration for more information on enabling local echo.

In Interactive mode (with local echo enabled), Block mode, or Network mode, any ASCII characters sent to the host controller or Keyboard Input Buffer by pressing keys on the OIT’s keypad, are also sent to the OIT cursor’s current location in the OIT’s display.

25 MAP450D Operation Manual

When the cursor reaches the end of the current display line:

in Interactive mode, additional characters overwrite the character in the last column,

•

unless the word-wrap feature is enabled. If word-wrap is enabled, the cursor moves to the next line of the display.

in Block or Network mode,the OITsounds anerror beepand stopsaccepting keypadinput.

•

In Network mode, once the OIT’s ENTER key is pressed, the OIT no longer accepts keypad input until the host controller either polls or clears the OIT’s Keyboard Input Buffer. If an attempt is made to enter additional data, the OIT sounds an error beep. Refer to Appendix A: Control Commands for information on the Clear Output Buffer and Poll OIT Buffer control commands.

Some of the OIT’s keys behave differently in Interactive mode than they do in Block and Network modes. The following table lists the behavior of these OIT keys in Interactive, Block, and Network modes.

OIT Key Interactive Mode Block & Network Modes

Clear

Delete

Enter

Clears the display and moves the cursor to the first position of the top line.

Deletes the character to the left of the cursor and moves the cursor one position left. If the cursor is on the last position of a line and a character is displayed there, the character is deleted and the cursor remains on the last position of the line. If the cursor is on the first position of a line, this key has no affect unless word wrap is enabled. With word wrap enabled, the character in the last position of the line above is deleted and the cursor moves to that position.

If the line terminator is has no affect. If the line terminator is

CR, the cursor moves to the first column

of the current line. If the line terminator

LF or CR/LF, the cursor moves to the

is first column of the next line. If the cursor is on Line #2 when an

CR/LF is received, any characters on

Line #2 move to Line #1.

ETX, this key

LF or

Moves the cursor to the original data entry starting position and clears all characters to the right of the cursor.

Deletes the character to the left of the cursor and moves the cursor one position left. If the cursor is at the original data entry starting position, this key has no affect. If the cursor is on the last position of a line and a character is displayed there, the character is deleted and the cursor remains on the last position of the line.

Moves the cursor to the original data entry starting position.

Displaying Text from the Host Controller

The host controller can send data to the OIT’s display by simply sending printable ASCII characters or by sending control commands and control codes.

Printable ASCII characters are immediately displayed at the OIT cursor’s current location. The cursor is then advanced one position to the right on the current display line. When the cursor reaches the end of the current display line, additional characters overwrite the character in the last column and the cursor does not move, unless the word wrap feature is enabled, in which case, the cursor drops to the next line of the display.

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Chapter 3: Using the OIT's Display 26

In addition to the standard printable ASCII characters, the host controller can also display characters from the OIT’s extended character set. Refer to Appendix C: Extended Character Set for a list of the extended characters available on the MAP450D and the ASCII codes the host controller should send to display them.

The host controller can control the location of data on the OIT’s display by sending control commands and control codes. For example, to move the OIT’s cursor down to the next line, the host controller sends the LF control code (hexadecimal 0A). To move the OIT’s cursor to Line #2 Column #10, the host controller sends the Set Cursor Position control command (

ESC x102terminator). Refer to Appendix A: Control Commands and

Appendix B: Control Codes for a complete description of the available control commands and control codes.

The OIT continuously monitors the host controller for data. Therefore, the host controller can send data to the OIT at any time. The OIT uses a 200 byte internal storage buffer for incoming data from the host controller. This buffer can fill up if the host controller sends data faster that the OIT processes it. If this occurs, use software or hardware handshaking to control the rate of data transfer. Refer to Chapter 1: OIT Configuration for information on software and hardware handshaking.

Using a Display Variable

One display variable can be defined at any time on the OIT’s display using the Create Display Variable control command. A display variable allows the host controller to set aside a portion of the OIT’s display for specific data. When writing to the display variable using the Write Display Variable control command, the host controller does not have to worry about where the OIT’s cursor is positioned or whether the OIT operator is in the middle of entering data. One typical use for display variables is to set aside a location for displaying time-critical data such as error messages. Following is information on creating, writing to, and deleting display variables. Refer to Appendix A: Control Commands and Appendix B: Control Codes for more information.

To create a display variable:

1. Have the host controller position the OIT’s cursor in the location where you want to start the display variable.

2. Have the host controller send the Create Display Variable control command (

ESC w

length terminator). The area allocated for the display variable is cleared, starting at the OIT cursor’s current location, and the OIT’s cursor is placed to the right of the display variable.

To write to a display variable:

1. Have the host controller send the Write Display Variable control command (

ESC v text

terminator). The new text overwrites the existing contents of the display variable. If the text sent is longer than the display variable, the excess characters are ignored.

NOTE:If the new text is shorter than the existing text, the part of the existing text that is longer

than the new text will still be visible in the OIT’s display.

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To delete a display variable:

1. Have the host controller send the FF control code.

NOTE:The FF control code clears the entire display not just the display variable.

27 MAP450D Operation Manual

Displaying Text from Predefined Messages

In some applications, the OIT may be required to display many messages to the OIT operator concerning the state of the control system. If these messages are always the same, they can be stored in the OIT and displayed whenever the host controller requests them. The OIT has the ability to store up to 500 predefined messages. Each predefined message can be as long as the number of characters per line on the OIT and can contain printable ASCII characters and characters from the extended character set.

To display a predefined message, the host controller sends the Display Message control command ( control command, the requested message displays at the OIT cursor’s current location. If the message is longer than the number of character spaces remaining on the current display line, the message is truncated, unless word wrap is enabled. Refer to Appendix A: Control Commands for more information on the Display Message control command.

Optional Settings for Predefined Messages

Each predefined message can be configured with optional controls which the OIT will perform either before or after a message is displayed on the OIT screen. These controls are provided to minimize the amount of commands that must be sent from the host in order to format the OIT display screen.

ESC m message# terminator). When the OIT receives the Display Message

Controls used before displaying the message: Each predefined message can be tagged with one of the following controls. These controls are performed on the OIT before the message is displayed:

No Action - selecting this option means that nothing is done to the OIT display before the pre-

•

defined message is displayed.

•

Clear Screen - the OIT clears the entire screen and homes the cursor.

•

Clear Line - the OIT clears the entire line that the cursor is located on and moves the cursor to the beginning of the line.

•

Clear to End of Line - the OIT clears theentire line starting at thecurrent position of the cursor.

Controls used after displaying the message: Each predefined message can be tagged with one of the following controls. These controls are performed on the OIT display after the message is displayed:

•

No Action - selectingthis option means nothing is done to the OITdisplay after the predefined message is displayed.

•

CR (Carriage Return) - the OIT moves the cursor to the beginning of the line that the cursor is on after the message is displayed.

•

LF (Line Feed) - theOIT movesthe cursorto thebeginning ofthe next lineafter themessage is displayed.

•

VT (Vertical Tab) - the OIT performs a ‘reverse line feed’ by moving the cursor to the begin ning of the previous line after the message is displayed.

•

Cursor to Startof Msg - the OIT moves the cursor to the first character of the messagethat was just displayed.

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Appendix A: Control Commands 28

APPENDIX A

Control Commands

Control commands are multiple ASCII characters, starting with the command initiator (ESC control character) and ending with the command terminator (STX control character) or line terminator. These commands allow the host controller to request and send information to the OIT. Control commands are always sent by the host controller to the OIT.

The first letter after the command initiator is the command letter. The command letter determines which action the OIT performs. Following is any necessary or optional command data. The command data is always in ASCII format, meaning that all command data must be printable ASCII characters.

The following rules must be adhered to when the host controller sends a control command:

Each control command must beginwith the command initiator (ESC controlcharacter).

•

Each control command must end with either the command terminator (STX control

•

character) or line terminator. Except for the command initiator, the command terminator, and the line terminator, all

•

other characters sent by the host controller must be printable ASCII characters.

If the control command requires a response from the OIT, the OIT immediately responds with any requested data and the line terminator.

Terminators

There are two types of terminators used in control commands: the command terminator and the line terminator. The command terminator is the STX control character and is used to indicate the end of a control command. The line terminator is programmable and can be CR, LF, CR/LF, or ETX. The line terminator is used by the host controller to indicate the end of a control command or to “log off” an OIT when operating in Network mode (refer to Chapter 2: Operating Modes).

Notation Conventions

This section uses the following type styles to define control command syntax:

SMALL CAPS Used for non-printable ASCII control characters. Control characters

are sent to the OIT using decimal or hexadecimal notation or by sending a BASIC CHR$ command. The control characters can also be generated from the keyboard of a computer when using a terminal emulation program. The table, below, lists the control characters recognized by the OIT when sent by the host controller.

bold Used for literal portions of the syntax that must be used exactly as

shown (including upper/lower case).

italics Used for variables that specify the type of data to include.

Note: Spaces are shown between the segments of the control command for clarity only.

Spaces should not actually be sent. For example,

ESCAtextterminator.

ESC A text terminator should be sent as

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29 MAP450D Operation Manual

Control Character

ESC 27 1B CHR$(27) CTRL [

STX 2 02 CHR$(2) CTRL B

CR 13 0D CHR$(13) CTRL M

LF 10 0A CHR$(10) CTRL J

ETX 3 03 CHR$(3) CTRL C

Decimal Notation

Hexadecimal Notation

BASIC Command

Terminal Keyboard Keypresses

Control Command Format

initiator commandletter commanddata terminator

initiator =

ESC

command letter = printable ASCII character a, b, c, d, e, f, g, k, m, o, p, r, t, u,

v, w, x, y, z, B, H, K, L, M, O, P, T, X, Y, Z, ?, {, }

command data = any data required by the specified command terminator = command terminator

STX

or line terminator CR, LF, CR/LF,orETX

Command Response Format

commanddata lineterminator

command data = any data required by the specified command line terminator =

CR, LF, CR/LF,orETX

Configuration Control Commands

Set LCD Viewing Angle Command

ESC a bias terminator

bias: 0 = 90º, 1 = 75º

Response: none Description: Allows the host controller to control the viewing angle of the LCD. Example: PRINT CHR(27); “a0”; CHR(2)

Save Configuration Parameters Command

ESC b terminator

Response: none Description: Saves the OIT’s current setup permanently into the Flash PROM.

The saved parameters become the defaults used at power-up.

Example: PRINT CHR(27); “b”; CHR(2)

Request Configuration Data Command

ESC c terminator

Response: class version revision serial terminator

class: C = MAP450D version: Two digits for the firmware version. revision: Two digits for the firmware revision level. serial: 0 = RS-232, 1 = RS-422/485, 2 = both active

Description: Returns six ASCII digits representing the OIT’s current product model,

version, revision, and serial interface type.

Example: PRINT CHR(27); “c”; CHR(2)

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Appendix A: Control Commands 30

Display and Cursor Format Control Command

ESC d00cursor delayedLF terminator

cursor: 0 = no change, 1 = disable cursor, 2 = enable cursor delayed LF: 0 = no change, 1 = disable delayed LF, 2 = enable delayed LF

Response: none Description: Allows the host controller to disable or enable the OIT’s cursor or delayed

line feed. Anytime a LF character is received by the OIT, the delayed line feed feature causes the cursor to remain in its current position until the next displayable character is received. The Set Cursor Position control command cancels the delayed line feed feature.

Example: PRINT CHR(27); “d0021”; CHR(2)

Display Format Control Command

ESC f blockecho 0 localecho terminator

block echo: 0 = no change

1 = disable block echo (replace characters sent to the display with *s) 2 = enable block echo

local echo: 0 = no change, 1 = disable local echo, 2 = enable local echo

Response: none Description: Allows the host controller to control block echo during Block mode and

local echo during Interactive mode. When block echo is disabled, characters sent to the display during Block mode are replaced with *s. When local echo is disabled, characters are not sent to the display during Interactive mode.

Example: PRINT CHR(27); “f201”; CHR(2)

Keyboard Control Command

ESC k enable 00 click setup terminator

enable: 0 = no change, 1 = off (disable keyboard entry), 2 = on click: 0 = no change, 1 = off (disable audible click), 2 = on setup: 0 = no change, 1 = off (disable local setup), 2 = on

Response: none Description: Allows the host controller to control the OIT’s keyboard operation. Example: PRINT CHR(27); “k20020”; CHR(2)

Set Turn-Around Delay Command

ESC t delay terminator

delay: 0 = none,1=50milliseconds, 2 = 100 milliseconds, 3 = 250 milliseconds

Response: none Description: Allows the host controller to change the delay between the time the OIT

receives a command requesting data and the OIT’s response.

Example: PRINT CHR(27); “t0”; CHR(2)

Set Tab Character Width Command

ESC z width terminator

width: 0 = no change, 1 = 1 character, 2 = 4 character, 3 = 8 character

Response: none Description: Allows the host controller to set the width of each “tab stop” used by the HT

control code.

Example: PRINT CHR(27); “z2”; CHR(2)

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31 MAP450D Operation Manual

Set Communications Parameters Command

ESC B baud parity databits terminator

baud: 0 = no change, 1 = 300 baud, 2 = 600 baud, 3 = 1200 baud,

4 = 2400 baud, 5 = 4800 baud, 6 = 9600 baud, 7 = 19200 baud

parity: 0 = no change, 1 = space, 2 = mark, 3 = even, 4 = odd, 5 = none data bits: 0 = no change, 1 = 7 data bits (1 stop bit if parity, 2 if no parity),

2 = 8 data bits & 1 stop bit

Response: none Description: Allows the host controller to change the OIT’s baud rate, parity, and data bits. Example: PRINT CHR(27); “B652”; CHR(2)

Enable Handshaking Command

ESC H handshaking terminator

handshaking: 0 = all handshaking disabled

1 = software handshaking (XON/XOFF) enabled (Interactive mode) 2 = hardware handshaking (RTS/CTS) enabled (Interactive and Block

modes)

3 = software and hardware handshaking enabled (Interactive mode)

Response: none Description: Allows the host controller to enable or disable serial handshaking. Example: PRINT CHR(27); “H0”; CHR(2)

Set Operating Mode Command

ESC M mode address terminator

mode: 0 = no change, 1 = interactive, 2 = block, 3 = network address: 01 to FF (ASCII hexadecimal)

Response: none Description: Allows the host controller to change the OIT’s operating mode and

network address.

Example: PRINT CHR(27); “1”; CHR(2)

Set Line Terminator Command

ESC T lineterminator terminator

line terminator:0=

ETX,1=CR,2=LF,3=CR/LF

Response: none Description: Allows the host controller to change the line terminator. Example: PRINT CHR(27); “T1”; CHR(2)

General Purpose Control Commands

Echo Back Text Command

1010-0101, Rev. 00

ESC e text terminator

Response: text terminator Description: Causes the OIT to echo back the ASCII characters sent (up to 40

characters). Each character is stored by the OIT until the terminator is received, at which time the entire string is sent back to the host controller.

Example: PRINT CHR(27); “eHello!”; CHR(2)

Appendix A: Control Commands 32

Sound Bell Command

ESC g seconds terminator

seconds: 0 = turn bell off, 1 to 60 = sound bell for n seconds

Response: none Description: Allows the host controller to sound the OIT’s transducer. Example: PRINT CHR(27); “g3”; CHR(2)

Display Message Command

ESC m message# terminator

message#: 0 = clear screen and return cursor to first position of first line

1 to 500 = predefined message to display

Response: none Description: Displays a predefined text string starting at the current cursor position.

If the text string is longer than the remaining line, only the first part of the string is displayed. The text string is displayed until the OIT operator presses the CLEAR key or the host controller calls message #0 to clear the screen.

Example: PRINT CHR(27); “m2”; CHR(2)

Clear Output Buffer Command

ESC o terminator

Response: none Description: Clears the contents of the OIT’s Keyboard Input Buffer and Keyboard

Output Buffer when the OIT is in Block or Network modes.

Example: PRINT CHR(27); “o”; CHR(2)

Poll OIT Buffer Command

ESC p terminator

Response: contents terminator

contents: OIT’s Keyboard Output Buffer contents

Description: Allows the host controller to retrieve the contents of the Keyboard Output

Buffer when in Network mode.

Example: PRINT CHR(27); “p”; CHR(2)

Retransmit Last Keyboard Buffer Command

ESC r terminator

Response: contents terminator

contents: OIT’s Keyboard Output Buffer contents

Description: Allows the host controller to retrieve the previous contents of the

Keyboard Output Buffer when in Block or Network modes. If the buffer is empty, only a line terminator is returned to the host controller.

Example: PRINT CHR(27); “r”; CHR(2)

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33 MAP450D Operation Manual

Request Keyboard Buffer Status Command

ESC ? terminator

Response: status terminator

status: 0 = buffer empty

1 = keyboard input in progress (Block and Network modes) 2 = entire message buffered, waiting for Poll OIT Buffer control

command (Network mode)

Description: Allows the host controller to determine the status of the OIT’s Keyboard

Input Buffer.

Example: PRINT CHR(27); “?”; CHR(2)

Enable Block Mode Command

ESC { start end fill terminator

start: 00 to 39. Starting cursor column number. 00 defaults to the position of

the cursor at the time the command is received.

end: 00 to 39. Ending cursor column number. 00 defaults to the end of the

current line at the time the command is received.

fill: SPACE to ~. Fill character used to replace any characters affected by

the Clear Output Buffer command or the DEL and CAN control codes. If not specified, the ASCII space character is used.

Response: none Description: Allows the host controller to dynamically change from Interactive to Block

mode. The optional start, end, and fill parameters limit the input to a specific area of the display (up to 40 characters). This command can be used in Network mode.

Example: PRINT CHR(27); “{1520”; CHR(2)

Disable Block Mode Command

ESC } enable terminator

enable: 0 = no change, 1 = off (disable keyboard entry),2=on

Response: none Description: After sending the Enable Block Mode command, the Disable Block Mode

command allows the host controller to return the OIT to Interactive mode, clears the OIT’s Keyboard Output Buffer, and enables or disables the keyboard. If the OIT was in Network mode when the Enable Block Mode command was received, then the block input field is cleared without changing the operating mode.

Example: PRINT CHR(27); “}2”; CHR(2)

Display Control Commands

Read Display Variable Command

ESC u terminator

Response: text terminator

text: ASCII characters currently in the display variable

Description: Allows the host controller to retrieve the contents of a display variable. Example: PRINT CHR(27); “u”; CHR(2)

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Appendix A: Control Commands 34

Write Display Variable Command

ESC v text terminator

text: ASCII characters to be written to the display variable

Response: none Description: Allows the host controller to change the contents of a display variable.

The old contents of the display variable are not erased until a new character overwrites the old character. If the text is longer than the display variable, the excess characters are ignored.

Example: PRINT CHR(27); “V12345”; CHR(2)

Create Display Variable Command

ESC w length terminator

length: 1 to 40, defaults to 4 if not specified

Response: none Description: Allows the host controller to create a display variable at the current cursor

position. The area allocated for the display variable is cleared and the cursor is placed to the right of the field. When the host controller writes to the display variable using the Write Display Variable control command, the display variable is updated accordingly.

Example: PRINT CHR(27); “W10”; CHR(2)

Set Cursor Position Command

ESC x column line terminator

column: 0 = no change, 1 to 40 = specified column# line: 0 = no change, 1 = line #1, 2 = line #2

Response: none Description: Allows the host controller to move the cursor without affecting the display

contents.

Example: PRINT CHR(27); “x32”; CHR(2)

Read Cursor Position Command

ESC y terminator

Response: column line terminator

column: 01 to 40 = cursor’s current column# line: 1 = line #1, 2 = line #2

Description: Allows the host controller to determine the cursor’s current position. Example: PRINT CHR(27); “y”; CHR(2)

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35 MAP450D Operation Manual

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Appendix B: Control Codes 36

APPENDIX B

Control Codes

Control codes are non-printable ASCII control characters sent from the host controller to the OIT which cause the OIT to perform specific functions.

Control Codes

ENQ 5 05

BEL 7 07 Sounds a ½ second warning beep.

BS 8 08

HT 9 09

LF 10 0A

VT 11 0B

FF 12 0C

CR 13 0D

XON 17 11

XOFF 19 13 Halts OIT transmission.

CAN 24 18

Decimal Notation

Hexadecimal Notation Description

Returns six ASCII digits representing the OIT’s current product model, version, revision, and serial interface type.

Moves the cursor one character position to the left on the current display line. The BS is non-destructive meaning that no characters are removed from the display. If the cursor is at the beginning of the line, the BS is ignored.

Moves the cursor to the beginning of the next tab field. If the cursor is at the end of the current display line, the HT is ignored. The default tab width of 1 can be changed using the STEPware-100 configuration software or the Set Tab Character Width control command.

Moves the cursor to the same column of the next display line. If the cursor is on line #1, the cursor moves to line #2 without disturbing the contents of either line. If the cursor is on the last line, all lines move up one line clearing the last line for new input. Display variables are automatically scrolled as well.

Moves the cursor to the beginning of the previous display line. If the cursor is on line #2 or lower, the cursor moves to the beginning of the previous line without disturbing the contents of any line. If the cursor is on the top line, all lines scroll down one line clearing the top line for new input. Display variables are automatically scrolled as well.

Clears the entire display and moves the cursor to the beginning of line #1.

Moves the cursor to the beginning of the current display line without disturbing the contents of the line.

Resumes OIT transmission previously halted by an XOFF.

Erases the characters from the cursor to the end of the current display line.

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37 MAP450D Operation Manual

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Appendix C: Extended Character Set 38

APPENDIX C

Extended Character Set

The following table lists the extended character set for the MAP450D. If the OIT receives one of the listed ASCII Codes from the host controller, it displays the corresponding extended character.

Extended Character

~ 126 ‚ 127 ƒ 161 „ 162 … 163 † 164 ‡ 165 ˆ 166 ‰ 167 Š 168 ‹ 169 Œ 170 ‘ 171 ’ 172 “ 173 ” 174

• 175 – 176 — 177 ˜ 178 ™ 179 š 180 › 181 œ 182 Ÿ 183 ¡ 184 ¢ 186 £ 187 ¤ 188

ASCII Code

Extended Character

¥ 189

® 198 ¯ 199 ° 200 ± 201 ² 202 ³ 203 ´ 204 µ 205 ¶ 206

· 207 ¸ 208 ¹ 209 º 210 » 211 ¼ 212 ½ 213 ¾ 214 ¿ 215 À 216 Á 217

ASCII Code

190

197

Extended Character

Â 218 Ã 219 Ä 220 Å 221 Æ 222 Ç 223 È 224 É 225 Ë 227 Í 229 Ð 232 Ñ 233 Ó 235 Ô 236 Õ 237 Ö 238 × 239 Ú 242 Û 243 Ü 244 Ý 245 Þ 246 ß 247 à 248 á 250 â 251 ã 252 ä 253

ASCII Code

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Appendix D: ASCII Table 40

APPENDIX D

ASCII Table

HEX ASCII CODE CHAR KEY DESCRIPTION

00 NUL Null 01 SOH Start of header 02 STX Start of text 03 ETX End of text 07 BEL Bell output 08 BS Backspace 09 HT Horizontal tab 0A LF Line feed 0B VT Vertical tab (VTAB) 0C FF Form feed 0D CR ENTER Enter 11 DC1 Device control 1 (X-ON) 13 DC3 Device control 3 (X-OFF) 18 CAN Cancel 1A SUB Substitute 1B ESC Escape 20 SP SPACE Space 21 ! Exclamation point 22 “ Quotation mark 23 # SHIFT (1 #) Number sign 24 $ SHIFT (8 $) Dollar sign 25 % SHIFT (5 %) Percent sign 26 & Ampersand 27 ’ Apostrophe 28 ( Open parenthesis 29 ) Close parenthesis 2A * SHIFT (3 *) Asterisk 2B + SHIFT (9 +) Plus sign 2C , SHIFT (7 ,) Comma 2D - SHIFT (. -) Hyphen or minus sign 2E . . Period 2F / SHIFT (6 /) Slash 30 0 0 Number 0 31 1 1 Number 1 32 2 2 Number 2 33 3 3 Number 3 34 4 4 Number 4 35 5 5 Number 5 36 6 6 Number 6 37 7 7 Number 7 38 8 8 Number 8 39 9 9 Number 9 3A : SHIFT (4 :) Colon 3B ; Semicolon 3C < Less than sign 3D = SHIFT (0 =) Equal sign 3E > Greater than sign 3F ? SHIFT (2 ?) Question mark 40 @ At sign 41 A A Letter A 42 B B Letter B 43 C C Letter C

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41 MAP450D Operation Manual

HEX ASCII CODE CHAR KEY DESCRIPTION

44 D D Letter D 45 E E Letter E 46 F F Letter F 47 G G Letter G 48 H H Letter H 49 I I Letter I 4A J J Letter J 4B K K Letter K 4C L L Letter L 4D M M Letter M 4E N N Letter N 4F O O Letter O 50 P P Letter P 51 Q Q Letter Q 52 R R Letter R 53 S S Letter S 54 T T Letter T 55 U U Letter U 56 V V Letter V 57 W W Letter W 58 X X Letter X 59 Y Y Letter Y 5A Z Z Letter Z 5B [ Open brackets 5C \ Reverse slash 5D ] Close brackets 5E ^ Up arrow/caret 5F _ Underscore 60 ` Grave accent 61 a SHIFT A Letter a 62 b SHIFT B Letter b 63 c SHIFT C Letter c 64 d SHIFT D Letter d 65 e SHIFT E Letter e 66 f SHIFT F Letter f 67 g SHIFT G Letter g 68 h SHIFT H Letter h 69 i SHIFT I Letter i 6A j SHIFT J Letter j 6B k SHIFT K Letter k 6C l SHIFT L Letter l 6D m SHIFT M Letter m 6E n SHIFT N Letter n 6F o SHIFT O Letter o 70 p SHIFT P Letter p 71 q SHIFT Q Letter q 72 r SHIFT R Letter r 73 s SHIFT S Letter s 74 t SHIFT T Letter t 75 u SHIFT U Letter u 76 v SHIFT V Letter v 77 w SHIFT W Letter w 78 x SHIFT X Letter x 79 y SHIFT Y Letter y 7A z SHIFT Z Letter z 7B { Left brace 7C | Vertical broken bar 7D } Right brace 7E ~ Tilde 7F DEL DELETE Delete (rubout)

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Appendix E: Troubleshooting 42

APPENDIX E

Troubleshooting

When Power is Applied the OIT’s Display is Blank and the OIT Beeps

This indicates that the OIT does not contain a complete project and that the OIT is in download mode waiting for STEPware-100 to download a project. Refer to the STEP1

Protocol Operation Manual - Chapter 1: Getting Started for instructions on creating and

downloading a STEPware-100 project.

The OIT Will Not Enter Configuration Mode

If, instead of displaying Parameters? MODIFY, the OIT displays Disp View Angle: or Baud Rate:, Local Setup Access has been disabled. You will need to enable Local Setup

Access by connecting the OIT to a host controller and having the host controller send the Keyboard control command to the OIT. Refer to Appendix A: Control Commands for more information.

If, for some reason, you cannot reenable the Local Setup Access using the Keyboard Control command, perform the following:

1. While pressing and holding down the CLEAR or ENTER key, cycle power to the OIT. Continue pressing until the OIT displays Disp View Angle:, then release.

2. Press the ENTER key to display the Baud Rate: message.

3. Press the B key.

4. Press the I key.

5. Press the P key.

6. Wait for a few seconds. The OIT will reinitialize, allowing you to enter Local Setup by holding down the CLEAR or ENTER key.

7. Refer to Chapter 1: OIT Configuration and follow the instructions.

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43 MAP450D Operation Manual

The OIT’s Keypad is Not Responding As Expected

Many operating parameters affect the operation of the OIT’s keypad. Therefore, if a key is not operating as expected, consider the following:

The operating mode (i.e. Interactive, Block, or Network) can change how the key

•

operates. Refer to Chapter 2: Operating Modes for more information. Is local echo enabled? For OITs operating in Interactive mode, this option determines

•

whether characters sent to the host from the OIT’s keypad are also sent to the OIT’s display.

Is block echo enabled? For OITs operating in Block or Network mode, this option

•

determines whether a character or an asterisk isdisplayed on the OIT’s display whena key is pressed.

Which line terminator is theOIT using? This parameter determines whichcharacter issent

•

when the OIT’s ENTER key is pressed. Is the local keyboard option enabled? If the local keyboard parameter is disabled, then the

•

OIT’s keypad will not function except to allow the OIT operator to enter Configuration mode during initialization of the OIT.

Is the keyclick option enabled? By default, all of the keys on the OIT respond with a

•

keyclick sound whenever the keys are pressed. However, this feature can be disabled to allow the keys to be silent.

1010-0101, Rev. 00

Index 1

Index

3-Wire RS-485 setting 13

ASCII Table 40

Baud Rate

Baud Rate setting 6 Set Communications Parameters control command 31

Block Echo

Block Echo setting 12 Display Format control command 30

Block Mode 19

Disable Block Mode control command 33 Enable Block Mode control command 33 Keyboard Input Buffer 19 Set Operating Mode control command 31

Command Terminator

in Control Commands 28 in Network Mode 20

Configuration 4

3-Wire RS-485 setting 13 Append Linefeed setting 11 Baud Rate setting 6 Block Echo setting 12 Cursor Type setting 15 Data Bits setting 7 Delayed Linefeed setting 13 Display Viewing Angle setting 6 Handshaking setting 8 Key Click setting 16 Line Terminator setting 10 Local Echo setting 11 Local Keyboard setting 16 Local Setup setting 17 Network Address setting 14 Operating Mode setting 10 Parity setting 7 Passwords setting 17 Request Configuration Data control command 29 Save Configuration Parameters control command 29 Stop Bits setting 8 Tab Width setting 14 Turn-Around Delay setting 12

Wrap Around setting 15 Configuration Mode 4 Control Codes 36

BEL 36

BS 36

CAN 36

CR 29, 36

ENQ 36

ESC 29

ETX 29 FF 36 HT 36 LF 29, 36 STX 29 VT 36 XOFF 36 XON 36

Control Commands 28

Clear Output Buffer 32 Create Display Variable 34 Disable Block Mode 33 Display and Cursor Format 30 Display Format 30 Display Message 32 Echo Back Text 31 Enable Block Mode 33 Enable Handshaking 31 Keyboard 30 Poll OIT Buffer 32 Read Cursor Position 34 Read Display Variable 33 Request Configuration Data 29 Request Keyboard Buffer Status 33 Retransmit Last Keyboard Buffer 32 Save Configuration Parameters 29 Set Communications Parameters 31 Set Cursor Position 34 Set LCD Viewing Angle 29 Set Line Terminator 31 Set Operating Mode 31 Set Tab Character Width 30 Set Turn-Around Delay 30 Sound Bell 32 Write Display Variable 34

Cursor

Cursor Type setting 15 Display and Cursor Format control command 30 Read Cursor Position control command 34 Set Cursor Position control command 34

Data Bits

Data Bits setting 7 Set Communications Parameters control command 31

Display 24

Display Viewing Angle setting 6 Displaying Text from Predefined Messages 27 Displaying Text from the Host Controller 25 Displaying Text from the OIT's Keypad 24 Using a Display Variable 26

Display Variable 26

Create Display Variable control command 34 Read Display Variable control command 33 Write Display Variable control command 34

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2 MAP450D Operation Manual

Echo Back Text control command 31 Extended Character Set 24, 38

Inserting into a Predefined Message 24

Handshaking

Enable Handshaking control command 31

Handshaking setting 8

Hardware 9

Software 9

Interactive Mode 18

Set Operating Mode control command 31

Keyboard

Key Click setting 16

Keyboard control command 30

Local Keyboard setting 16 Keyboard Input Buffer

in Block Mode 19

in Network Mode 21

Request Keyboard Buffer Status control command 33 Keyboard Output Buffer

Clear Output Buffer control command 32

in Network Mode 21

Poll OIT Buffer control command 32

Retransmit Last Keyboard Buffer control command 32

Line Terminator

in Control Commands 28

in Network Mode 20

Line Terminator setting 10

Set Line Terminator control command 31 Linefeed

Append Linefeed setting 11

Delayed Linefeed setting 13

Display and Cursor Format control command 30 Local Echo

Display Format control command 30

in Interactive Mode 18

Local Echo setting 11 Local Setup Mode 4

Keyboard control command 30

Local Setup setting 17

Messages, Predefined 27

Display Message control command 32

Network Mode 20

Addressing 21 Global Broadcast 21 Keyboard Input Buffer 21 Keyboard Output Buffer 21 Network Address setting 14 Sample Network Session 22 Set Operating Mode control command 31

Operating Modes 18

Block Mode 19 Interactive Mode 18 Network Mode 20 Operating Mode setting 10 Set Operating Mode control command 31

Parity

Parity setting 7 Set Communications Parameters control command 31

Passwords setting 17

Sound Bell control command 32 Stop Bits

Set Communications Parameters control command 31 Stop Bits setting 8

Tab Width

Set Tab Character Width control command 30

Tab Width setting 14 Troubleshooting 42 Turn-Around Delay

in Network Mode 21

Set Turn-Around Delay control command 30

Turn-Around Delay setting 12

Viewing Angle

Display Viewing Angle setting 6

Set LCD Viewing Angle control command 29

Wrap Around setting 15

1010-0101, Rev 00

Maple Systems MAP450D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1: OIT Configuration 4

Chapter 2: Operating Modes 18

Appendix A: Control Commands 28

Appendix B: Control Codes 36

Appendix C: Extended Character Set 38

Appendix D: ASCII Table 40

Appendix E: Troubleshooting 42

Index