Benedict Computer TECHNICAL TIPs and samples of
 RS232 RS422 & RS485 Serial and Monitoring examples

<>NEW: RS485 Transmission
Problems With Lithium Battery life on DLM400

Dyna Cash Register Application

Tech Tip on Interfacing A Line Monitor to test a ROBOT or SENSOR Interface to a PC
 How to test PC COM ports for baud rate and configuration using a DLM200
 How to connect a DLM200 series Monitor  to a PC COM port to send HEX DUMP printout to a PC
 Example of HEX DUMP report from DLM capture buffer that can be sent to a printer or PC
 Tech Tip on how to determine the elapsed time in milliseconds between messages on a serial communication line
 Download current DLM200 Release Notes in MSWord (.doc) format
 Special Note on BSC setup of Sync Characters on DLM200 Series Monitors

Schematic on how to make a cable to hook DLMVIEW to a PC Comport

<> Click to go to  BENEDICT COMPUTER Homepage ofhand held RS232 / RS422 MONITORS & Test Equipment

BSC SYNC SETUP

When setting up the sync1 and sync2 characters for use in BSC it is necessary to scroll (up or down arrow) before exiting the menu to set the value. To check this you may enter the MENU again to verify that the correct value is set. This value is usually a HEX 32,16,96, or B2.


DLM400 RS485 transmissions in [T]erminal mode
We have been  asked for the ability of the DLM400 to act as a master in a half duplex RS485 system.  We are offering firmware that will transmit characters pressed on the keyboard, or transmitted from a edit string and then  remove the transmitter from the circuit allowing other devices to transmit after a Carriage Return is entered. Keying in more characters causes the DLM400 to resume transmission. Please call with questions or suggestions for this type of testing.