TECHNICAL BULLETIN
Contents
1. ING REPORT 01 001 Address 10 Ett ELECTRONIC SYSTEMS TECHNOLOGY 509 735 9092 O 415 N QUAY STREET e KENNEWICK WA 99336 Page 4 of 4 www esteem com Revised 17 March 032. MS TECHNOLOGY 415 N QUAY STREET e KENNEWICK WA 99336 509 735 9092 O Page 1 of 1 www esteem com Revised 17 March 03 TECHNICAL BULLETIN Wireless Modems MDC SYSTEM COMPUTER CONFIGURATION ENGINEERING REPORT Suggestions for Programming the Esteems SETUP PROCEDURE Step 1 Step 2 Step 3 Connect the ESTeem wireless modem to a PC running the ESTeem Utilities Program using one of the interface cables Enter the Terminal Emulation section of the Utility Match the baud rate parity and number of data bits programmed into the RS 232 Setup Switch on the rear of the modem to the port settings on the Terminal Emulation section of the ESTeem Utility Turn Bit 8 off on the RS 232 Setup Switch Reset RST the ESTeem from the front panel switch On the keyboard type FA FACTORY DEFAULT carriage return cr from the keyboard Your key strokes may or may not be echoed on the screen depending on the program that was in the ESTeem when you received it If everything is correct you have now restored the ESTeem to Factory Default parameters From the COMMAND MODE CMD program each ESTeem as follows 01 001 Remote Value Definition FA Restore Factory Defaults ADD XXX Sets ESTeem Address to XXX SEIC 255 Enable Global Feature e TERMC ON Set Termination Timer e TERMT 10 Set Termination Time e SENDP XX Set Sendpack Character e PACKL XXX Set Packet Len
3. MTime 10 65535 The RS 232C 422 485 receive termination timer value This value can be 10 to 65535 milliseconds This value is enabled by TERMCONT Factory default 50 01 001 MESSform on off When enabled all of the system status and error messages will be in a formatted form xx indicates what error or message See Error Messages and System Status Messages EMxx lt CR gt ESTeem Error Messages SExx lt CR gt System Error Messages SSxx lt CR gt System Status Messages SSxx xxxx CR System Status Message W Returned Value ON Enabled OFF Disabled Factory default OFF MULTID on off This command when enabled allows the ESTeem User to send data to another ESTeem from the CONVERSE MODE by specifying the routing address before the data Factory default OFF Example of Transmitted Inquiry Routes data to an ESTeem addressed 1 001 Data Routes data to an ESTeem addressed via ESTeems addressed 100 200 and 250 100 200 250 1 Data 255 Data 1 255 Data Global send using address 1 as repeater This replaces using the CONNECT command from the COMMAND Mode Received data packets will have the address of the ESTeem that sent the data at the beginning of the data packet Example of Received Data O04 DATA Data received from an ESTeem addressed 4 030 100 244 004 Data Data received from ESTeem addressed 4 via ESTeems addressed 30 100 and 244 Ei ELECTRONIC SYSTE
4. Wireless Modems TECHNICAL BULLETIN MDC SYSTEM COMPUTER CONFIGURATION ENGINEERING REPORT Introduction This report defines the recommended method for programming the ESTeem Model 192 modems to operate with Mobil Data Computer MDC software This mode allows host and client computers to communicate using different repeater routing Listed below are the key commands and their definitions AUtolf on off This command enables the auto line feed sent to the terminal after each carriage return ON Enabled OFF Disabled Factory default ON ECHO on off This command enables the ESTeem to echo characters received from the input device back to the input device ON Enabled OFF Disabled Factory default ON SENDPACK 0 255 Send packet SENDPACK command The value specifies an ASCII character used to signal when to send the packet If set to a value of 255 the command is disabled The factory default value is 13 Return PACKleng 1 2000 This command defines the length of the data packet in bytes Factory default 2000 TEMCont on off The RS 232C 422 485 receive termination timer ON If there are characters in the RS 232 buffer and the Modem is in Converse Mode the termination timer starts from the time the last receive character is updated in the buffer If the termination time expires before another character is received the characters are transmitted OFF Disabled Factory default OFF TER
5. em Address 10 after the initial connection is made 10 data b Computer sends data to Addess 10 4 ESTeem sends an ACK to Computer indicating the message was received by ESTeem at Address 10 Example of an RF link down message to the Computer 10 data y Computer sends data to ESTeem at Address 10 SS03 RF linkis down The ESTeem sends a Link Down Message to the Computer D ACKis sent to the Computer indicating the ESTeem is ready for next packet After receiving the Link Down Message the Computer resends the message 10 data Computer sends data to ESTeem at Address 10 SS01 10 ESTeem sends Connected to 10 message to Computer this message is sent on the initial connect only amp 4 ESTeem sends an ACK to Computer indicating the message was received by ESTeem at RF Systems Block Diagram DigFRepeater 4 pig RePeater 7 ie ccc DECR DE Ke 47 pu 1 D m oe oe IH cum ESTeem e Model 192 y gt ES RF Server Computer ESTeem i Model 192 Base System Ei ELECTRONIC SYSTEMS TECHNOLOGY 509 735 9092 O 415 N QUAY STREET e KENNEWICK WA 99336 Page 3 of 3 www esteem com Revised 17 March 03 TECHNICAL BULLETIN Wireless Modems MDC SYSTEM COMPUTER CONFIGURATION ENGINEER
6. gth MULTID ON Enable Multi ID AUTOLF OFF Disables Auto Linefeeds EDIT OFF Disables Edit Commands TYPSYSTE OFF Disables Type System ECHO OFF Disables Character Echoes SAVE Saves Configuration BIT 8 RS 232 ON Enable Autoconnect RESET Reset ESTeem ESTEEM Set In Global Mode Only e Defines the end of a packet Only one type will need to be set Es ELECTRONIC SYSTEMS TECHNOLOGY 415 N QUAY STREET KENNEWICK WA 99336 509 735 9092 O Page 2 of 2 www esteem com Revised 17 March 03 TECHNICAL BULLETIN Wireless Modems MDC SYSTEM COMPUTER CONFIGURATION ENGINEERING REPORT 01 001 Protocol Handshaking Example Below is an example of the protocol handshaking used between the ESTeem and the host client computer The ESTeem uses the character as a message received acknowledgment from the destination ESTeem for messages sent over the RF length Please see the user manual appendix C for the message format Computer ESTeem Computer performing the initial connection and sending a data packet to an ESTeem with an Address of 10 10 data y Computer sends data to ESTeem at Address 10 SS01 10 lt _ _ ESTeem sends Connected to 10 message to Computer this message is sent on the initial connect only T lt ESTeem sends an ACK to Computer indicating the message was received by ESTeem at Address 10 Computer sending additional data to ESTe
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