JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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Creating and Using a Physical RAM Drive NF BC Learning About the Software 3 A physical RAM (random access memory) drive is a disk drive that exists only in your reader’s extended memory. You create, read, write, and delete files on a RAM drive the same way you can on a hard disk drive. RAM drives are faster than hard disk drives because the contents of a RAM drive are, by definition, always resident in RAM. By default, your reader’s drive E is configured in the CONFIG.SYS file as a 256K RAM drive. You can use the same DOS commands and Norton utilities on a RAM drive that you can on a hard disk drive. Understanding When Files Are Saved or Lost Make sure you understand when the files on a RAM drive are saved or lost: When You Do This RAM Drive Files Are You press to turn off the reader. Saved You warm boot the reader. Saved You cold boot the reader. Lost You load the reader’s flash memory. Lost You put the reader in Storage mode. Lost You execute CONFIG.SYS after changing the command that creates the RAM drive. You turn off the reader (by pressing or removing the battery) while the reader is performing a warm boot. Lost Lost Copy all important files from the RAM drive to another drive or another computer before you perform any task that causes the files to be lost. Note: If you need to cold boot the reader, you may be able to save the contents of the RAM drive. For help, see “Saving the Contents of the RAM Drive” in Chapter 10. 3-33
JANUS 2020 Hand-Held Computer User’s Manual (4MB) NF BC 3-34 Deciding How Much Memory to Use for RAM Drives The size of the RAM drive you create is limited only by the amount of extended memory in the reader. You can create multiple RAM drives as long as the sum of their sizes does not exceed the amount of memory available. Decide how much memory you will use for the RAM drive or drives: Up to 256K If you use up to 256K, all applications have enough memory to operate normally. Intermec recommends that you adhere to a 256K limit. From 256K to 320K If you use more than 256K but less than 320K, the IRL Desktop and IC.EXE run slowly because the RAM drive is using memory these applications use for caching. More than 320K If you use more than 320K, Reader Services cannot run. For help deciding if you need Reader Services, see “Using Reader Services in Applications” later in this chapter. Creating a RAM Drive You create RAM drives with the SRAMDISK.SYS device driver. Because SRAMDISK.SYS works only in extended memory, the reader must be running an XMS extended memory manager, such as HIMEM.SYS. Your CONFIG.SYS must include a command that installs the memory manager before the command that creates the RAM drive. For example, the default CONFIG.SYS contains these commands in this order: device=d:\himem.sys device=d:\sramdisk.sys 256 512 When you create a physical RAM drive, DOS gives it the next available drive letter on the reader. For example, if you create three RAM drives, DOS may assign them drives E, F, and G. In this case, the reader’s Type II PC card drive is assigned drive H (instead of G). To create or change a RAM drive 1. To create or change a RAM drive, you must edit the reader’s CONFIG.SYS file, which is on drive C. For help, see “Learning How to Change the Contents of Drive C” earlier in this chapter. 2. Verify that HIMEM.SYS or another XMS extended memory manager is loaded into memory by a command in the reader’s CONFIG.SYS file. 3. Add a SRAMDISK.SYS command in the CONFIG.SYS file for each RAM drive you want to add. The SRAMDISK.SYS command(s) must appear after the command that loads the extended memory manager.
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User’s Manual JANUS 2020 Hand-He
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Intermec® Corporation 6001 36th Av
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JANUS 2020 Hand-Held Computer User
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Before You Begin NF BC Before You B
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About This Manual NF BC Before You
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NF BC Before You Begin Format Conve
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NF BC Before You Begin Format Conve
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1 Getting Started
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2 Learning How to Use the Reader
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JANUS 2020 Features Communications
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nugget nuggetTYTR TYTRLeaning How t
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* % F 5 nugget nuggetTYTR TYTRLeani
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To use the Compound Function key Pr
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Using the Large Numeric Keypad nugg
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4 nugget nuggetTYTR TYTRLeaning How
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f * nugget nuggetTYTR TYTRLeaning H
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Page 74 and 75: Locating the Communications Ports n
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Page 86 and 87: Using the Laser Scanner nugget nugg
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Page 96 and 97: Defining the Startup Files NF BC Le
Page 98 and 99: AUTOEXEC.BAT (continued) Command Li
Page 100 and 101: MS-DOS Startup Menu The default JAN
Page 102 and 103: Summary of Methods for Changing the
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Page 130 and 131: Understanding the Bar Code Wedge NF
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Page 134 and 135: NF BC 4 Using PC Cards in the Reade
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Page 142 and 143: To remove a PC card NF BC Using PC
Page 148 and 149: The MCFORMAT main menu appears: NF
Page 156 and 157: To turn on the power to the PC card
Page 158 and 159: NF BC 5 Configuring the Reader
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Page 162 and 163: About the Configuration Files NF BC
Page 164 and 165: How to Configure the Reader NF BC C
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Page 168 and 169: To create two INI files with differ
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NF BC Configuring the Reader 5 Make
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NF BC Configuring the Reader 5 3. C
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Bar Code Symbologies Table (continu
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Communications Protocol Parameters
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Communications Protocol Parameters
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Operations Table (continued) NF BC
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Operations Table (continued) NF BC
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NF BC 6 Networking the Reader
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NF BC Networking the Reader 6 This
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JANUS Readers in a Radio Frequency
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NF BC Networking the Reader Port Ho
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Planning the Network Connection NF
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NF BC Networking the Reader 6 PC St
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NF BC Networking the Reader Configu
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PC Standard Protocol Parameters •
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NF BC Networking the Reader For exa
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NF BC Networking the Reader 6 Loadi
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NF BC Networking the Reader Method
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NF BC Networking the Reader 6 Conne
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Running Interlnk to Transfer Files
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NF BC Networking the Reader 6 Examp
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NF BC Networking the Reader Install
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NF BC Networking the Reader 3. At t
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NF BC Networking the Reader 6 3. Pr
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NF BC Networking the Reader 6 To us
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Type this command at the client’s
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NF BC Networking the Reader 6 When
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NF BC Networking the Reader Exiting
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NF BC Networking the Reader Downloa
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Example 2: Downloading an Executabl
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NF BC Networking the Reader 6 Prepa
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To make the reader the server NF BC
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FTA Command Descriptions and Syntax
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NF BC Networking the Reader 6 Editi
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NF BC 7 Working With IRL
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Learning About IRL NF BC Working Wi
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NF BC Working With IRL You can load
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The About menu contains these comma
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NF BC Working With IRL Running an I
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NF BC Working With IRL 7 You can al
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NF BC Working With IRL Specifying t
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NF BC Working With IRL 7 Including
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Resuming IRL Programs NF BC Working
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NF BC Working With IRL Freeing Enou
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NF BC 8 Preparing the Reader for In
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NF BC Preparing the Reader for Inte
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Using an International Keypad NF BC
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NF BC 9 Booting and Resetting the R
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NF BC Booting and Resetting the Rea
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Resetting the Reader NF BC Booting
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6. The Boot Loader menu appears. Bo
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To exit Storage mode NF BC Booting
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Loading Flash Memory NF BC Booting
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NF BC 10 Troubleshooting
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nugget nuggethelCODE39 CODE39Troubl
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Powering Up or Booting the Reader (
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Operating the Reader nugget nuggeth
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Operating the Reader (continued) Pr
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Operating the Reader (continued) Pr
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Other Boot Loader menu messages may
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Running IRL Programs nugget nuggeth
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Using PC Cards nugget nuggethelCODE
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Using PC Cards (continued) Problem
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Using DOS Commands and Applications
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Using MakeDisk nugget nuggethelCODE
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Using PutDisk nugget nuggethelCODE3
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Using PutDisk (continued) Message E
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Problems With the NiCad Battery Pac
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NF BC 11 Reader Command Reference
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11 NF BC Reader Command Reference T
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Backspace 11 NF BC Reader Command R
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Enter 11 NF BC Reader Command Refer
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IRL File, Clear 11 NF BC Reader Com
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IRL Program, Download 11 NF BC Read
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Laser On and Off 11 NF BC Reader Co
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Viewport Movement Viewport Down 11
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Viewport Right 11 NF BC Reader Comm
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Viewport Page Up 11 NF BC Reader Co
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NF BC 12 Configuration Command Refe
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Configuration Commands Listed by Ca
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Address, Multi-Drop 12 NF BC Config
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Automatic Shutoff 12 NF BC Configur
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Baud Rate 12 NF BC Configuration Co
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Beep Duration (continued) Beep Freq
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Beep Volume 12 NF BC Configuration
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Codabar (continued) Code 11 12 NF B
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Code 2 of 5 12 NF BC Configuration
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Code 39 12 NF BC Configuration Comm
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Code 39 (continued) 12 NF BC Config
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Command Processing 12 NF BC Configu
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Command Processing (continued) 12 N
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Disabling or Enabling Command Overr
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Communications Dock Port 12 NF BC C
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Communications Port, UART Restore 1
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Communications Protocol (continued)
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Activate 12 NF BC Configuration Com
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Data Bits 12 NF BC Configuration Co
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Display Backlight Timeout (continue
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Display Mode, IRL 12 NF BC Configur
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Display Setup (continued) Scan: One
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Display Setup (continued) 8 x 20 (l
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EOM (End of Message) 12 NF BC Confi
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EOR (End of Record) 12 NF BC Config
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Intercharacter Delay 12 NF BC Confi
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Interleaved 2 of 5 (continued) Enab
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IRL End Program Block 12 NF BC Conf
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IRL PAK (Program Acknowledge) 12 NF
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IRL Run 12 NF BC Configuration Comm
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Key Code Look-Up Table 12 NF BC Con
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Keypad Clicker 12 NF BC Configurati
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Keypad, Numeric 12 NF BC Configurat
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MSI (continued) 12 NF BC Configurat
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Parity 12 NF BC Configuration Comma
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POL Purpose: Solicits or requests d
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Postamble (continued) 12 NF BC Conf
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Records Per Block (continued) Synta
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RES (Reset) Purpose: Enables or dis
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Scanner Mode 12 NF BC Configuration
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Scanner Timeout 12 NF BC Configurat
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SEL (Select) 12 NF BC Configuration
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Stop Bits 12 NF BC Configuration Co
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Timeout Delay (continued) 12 NF BC
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Turnaround Delay 12 NF BC Configura
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UPC/EAN (continued) Scan: To disabl
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Viewport Movement Keys 12 NF BC Con
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Viewport Movement Steps (continued)
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NF BC A Reader Specifications
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NF BC Reader Specifications This ap
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Data Communications NF BC Reader Sp
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Default Configuration NF BC Reader
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Operations Parameter Default Automa
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Configuration Commands by Syntax NF
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Configuration Commands by Syntax (c
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Types of Memory Used in the Reader
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NF BC Reader Specifications A RAM D
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B Reader Keypad Charts
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NF BC
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Glossary G Accumulate mode Operatin
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Glossary G bar code density Number
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Glossary G Code 11 A very high dens
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Glossary G configuration command A
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Glossary G edge triggering A scanne
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Glossary G Graphics mode One of two
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Glossary G IRL Desktop The IRL oper
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Glossary G Multi-Drop address The a
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Glossary G PC Standard communicatio
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Glossary G reader command A reader
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Glossary G serial communications Wi
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Glossary G UPC/EAN Code A fixed len
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I Index
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