Rs232 loop back
Author: s | 2025-04-23
www.usconverters.com Copyrights U.S. Converters LLC 1 USB Serial RS232 Loop-back test and troubleshooting A loop-back test can verify if your USB to serial RS232
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When you have inserted the RS-232 plug first make sure that the RS-232 is functioning according to the specification. Creating a RS232 Loopback connector Cut off an eight-pin connector about three inches from the end. Number the pins 1 thru 8 as you like. Splice the pin wire pairs as follows: 1-3 2-7 4-5 6-8 Tech2 keyboard and RS232 loopback self test Attach (p/n 3000112) RS232 eight-pin loop back connector to left side port of Tech2. Attach (p/n 3000095) cable to the VCI in the bottom on the TECH2. Attach (p/n 3000109) loop back adapter to the other end of the cable. Connect a 12vdc power source to the TECH2. Press ENTER. Select TOOL OPTIONS. Select Tech2 Self Test Read the screen and press EXIT. Select Automated Main and VCI. Read the results. Testing the RS232 loopback plug Test the plug by attaching it to the serial port of the Techline computer or into a certified Tech2 USB-2-serial adapter. Download a serial terminal application like RealTerm to diagnose the loop-back functionality. Now plug your RJ-45 loop-back adapter into the Tech2 device and navigate to the RS-232 test. Depending on the software version there are various options to get to the RS-232 test menu. While using the (SAAB 44.000 .bin file)[/content/which_.bin-files_are_available/SAAB.html] you need to follow this procedure; Insert the loop-back plug into the RJ-45 port Press PWR to turn on the Tech2 Title screen, press ENTER F2: Tools Options F3: Field Services Diagnostics F3: Selectable Main PCB F2: RS-232 LoopBack While using the (SAAB 148.000 .bin file)[/content/which_.bin-files_are_available/SAAB.html] you need to follow this procedure; Insert the loop-back plug into the RJ-45 port Press PWR to turn on the Tech2 Title screen, press ENTER F2: Tool Options F0: Tech2 Self Test Press EXIT on the notification screen F3: Selectable Main PCB F2: RS-232 LoopBack Now the Tech2 should respond with the following: RS-232 Test: Passed If the Tech2 responds with RS-232 Test: LoopBack Not Connected or ADDRESS ERROR - PROCESSOR HALT the chances are high that the MAX202 or the MAX232 is borked, which means replacing the SMD mountec RS-232 communications chip (SOIC www.usconverters.com Copyrights U.S. Converters LLC 1 USB Serial RS232 Loop-back test and troubleshooting A loop-back test can verify if your USB to serial RS232 usb-serial-rs232-loop-back-test - Free download as PDF File (.pdf), Text File (.txt) or read online for free. usb-serial-rs232-loop-back-test And set green led on.8) Check for button presses again.9) Loop forever until a button is pressed.The loop loops very fast, so the probability that you will stop it at the same value of x two times in a row is very remote. This is a very simple but effective way to get a good random seed.Bootwait() is called from the main() function and its return value assigned to the variable i.If i == 1, the main loop starts a loop that displays effects generated by the ATmega. If i == 2, it enters into RS232 mode and waits for data from a computer.Step 53: Software: Interrupt RoutineThe heart of the LED cube code is the interrupt routine.Every time this interrupt runs, the cube is cleared, data for the new layer is loaded onto the latch array, and the new layer is switched on. This remains on until the next time the interrupt runs, where the cube is cleared again, data for the next layer is loaded onto the latch array, and the next layer is switched on.The ATmega32 has 3 timer/counters. These can be set to count continuously and trigger an interrupt routine every time they reach a certain number. The counter is reset when the interrupt routine is called.We use Timer2 with a prescaler of 128 and an Output Compare value of 10. This means that the counter is incremented by 1 for every 128th cpu cycle. When Timer2 reaches 10, it is reset to 0 and the interrupt routine is called. With a cpu frequency of 14745600 Hz, 128 prescaler and output compare of 10, the interrupt routine is called every 1408th CPU cycle (128*11) or 10472.7 times per second. It displays one layer at a time, so it takes 8 runs of the interrupt to drawComments
When you have inserted the RS-232 plug first make sure that the RS-232 is functioning according to the specification. Creating a RS232 Loopback connector Cut off an eight-pin connector about three inches from the end. Number the pins 1 thru 8 as you like. Splice the pin wire pairs as follows: 1-3 2-7 4-5 6-8 Tech2 keyboard and RS232 loopback self test Attach (p/n 3000112) RS232 eight-pin loop back connector to left side port of Tech2. Attach (p/n 3000095) cable to the VCI in the bottom on the TECH2. Attach (p/n 3000109) loop back adapter to the other end of the cable. Connect a 12vdc power source to the TECH2. Press ENTER. Select TOOL OPTIONS. Select Tech2 Self Test Read the screen and press EXIT. Select Automated Main and VCI. Read the results. Testing the RS232 loopback plug Test the plug by attaching it to the serial port of the Techline computer or into a certified Tech2 USB-2-serial adapter. Download a serial terminal application like RealTerm to diagnose the loop-back functionality. Now plug your RJ-45 loop-back adapter into the Tech2 device and navigate to the RS-232 test. Depending on the software version there are various options to get to the RS-232 test menu. While using the (SAAB 44.000 .bin file)[/content/which_.bin-files_are_available/SAAB.html] you need to follow this procedure; Insert the loop-back plug into the RJ-45 port Press PWR to turn on the Tech2 Title screen, press ENTER F2: Tools Options F3: Field Services Diagnostics F3: Selectable Main PCB F2: RS-232 LoopBack While using the (SAAB 148.000 .bin file)[/content/which_.bin-files_are_available/SAAB.html] you need to follow this procedure; Insert the loop-back plug into the RJ-45 port Press PWR to turn on the Tech2 Title screen, press ENTER F2: Tool Options F0: Tech2 Self Test Press EXIT on the notification screen F3: Selectable Main PCB F2: RS-232 LoopBack Now the Tech2 should respond with the following: RS-232 Test: Passed If the Tech2 responds with RS-232 Test: LoopBack Not Connected or ADDRESS ERROR - PROCESSOR HALT the chances are high that the MAX202 or the MAX232 is borked, which means replacing the SMD mountec RS-232 communications chip (SOIC
2025-04-23And set green led on.8) Check for button presses again.9) Loop forever until a button is pressed.The loop loops very fast, so the probability that you will stop it at the same value of x two times in a row is very remote. This is a very simple but effective way to get a good random seed.Bootwait() is called from the main() function and its return value assigned to the variable i.If i == 1, the main loop starts a loop that displays effects generated by the ATmega. If i == 2, it enters into RS232 mode and waits for data from a computer.Step 53: Software: Interrupt RoutineThe heart of the LED cube code is the interrupt routine.Every time this interrupt runs, the cube is cleared, data for the new layer is loaded onto the latch array, and the new layer is switched on. This remains on until the next time the interrupt runs, where the cube is cleared again, data for the next layer is loaded onto the latch array, and the next layer is switched on.The ATmega32 has 3 timer/counters. These can be set to count continuously and trigger an interrupt routine every time they reach a certain number. The counter is reset when the interrupt routine is called.We use Timer2 with a prescaler of 128 and an Output Compare value of 10. This means that the counter is incremented by 1 for every 128th cpu cycle. When Timer2 reaches 10, it is reset to 0 and the interrupt routine is called. With a cpu frequency of 14745600 Hz, 128 prescaler and output compare of 10, the interrupt routine is called every 1408th CPU cycle (128*11) or 10472.7 times per second. It displays one layer at a time, so it takes 8 runs of the interrupt to draw
2025-04-06Through RS232 communication protocol.Component List for the projectComponent NameQuantityPurchase LinkArduino Uno1AmazonMAX232 RS232 to TTL Serial Port Converter1AmazonUSB to DB9 Cable (for communicate with PC)1AmazonLED1Amazon220 Ohm Resistor1AmazonAffiliate Disclosure: When you click on links to make a purchase, this can result in this website earning a commission. Affiliate programs and affiliations include, but are not limited to Amazon.comPin ConnecctionsThe connection between Arduino and MAX232 module is shown below:Arduino UnoMAX232 ModulePin 7 (software selected TX pin)TX pinPin 6 (software selected RX pin)RX Pin5V pin of ArduinoVccGround pin of ArduinoGround PinCircuit Diagram of This ProjectArduino code and its explanationThe provided code is an Arduino sketch that demonstrates the use of the MAX232 module for serial communication between an Arduino board and external devices (i.e. PC). Let’s go through the code step by step:The necessary libraries header files are included: SoftwareSerial.h, string.h, and stdio.h.Global variables are declared: recv_char to store the received characters, recv_str as a character array to store the received string, and i as a counter for the string array.The SoftwareSerial object mySerial is created, specifying the RX and TX pins (pin 6 and pin 7) respectively to establish communication with the MAX232 module.The LED pin (pin 8) is defined as an output pin.In the `setup()` function:The baud rate for the Arduino’s hardware serial port is set to 2400 using Serial.begin().A message is printed to the Arduino’s serial port to indicate that it is ready.The baud rate for the mySerial SoftwareSerial port is set to 2400 using mySerial.begin().The LED pin is configured as an output and initially set to a LOW state.The `loop()` function is the main execution loop of the program:It checks if there is incoming data available from the MAX232 module using mySerial.available().If data is available, the received character is read into recv_char.If the received character is a carriage return (‘\r’), it indicates the end of a command or message.The characters received before the carriage return are stored in recv_str, which is then null-terminated.If the received string matches “ON”, the LED pin is set to HIGH, and “high” is printed to the Arduino’s serial monitor.If the received string matches “OFF”, the LED pin is set to LOW, and “low” is printed to the Arduino’s serial monitor.The received string is also printed to the Arduino’s serial port.The variables are reset for the next incoming message by ‘memeset’.If the received character is not a carriage return, it is added to the recv_str array.Additionally,
2025-04-13An emulator for the Microbee Z80 ROM, FDD and HDD based microcomputers. uBee512 is an emulator for the Microbee Z80 series of microcomputers. Emulation of all ROM, Floppy and Hard disk based models, including 512K and 2MB extended memory is supported.File Name:ubee512-4.7.0.tar.gz Author:Stewart KayLicense:Freeware (Free)File Size:757 KbRuns on:Linux Advertisement Advertisement AccessPort is an advanced serial monitor, simulation and RS232 data analysis application. Use to log, view, analyse or automate RS232 communication or simply use as an ASCII Terminal for basic serial port communication and RS232 device configuration.File Name:AccessPort136.zip Author:WWW.SUDT.COMLicense:Freeware (Free)File Size:Runs on:Windows AllThis project aims at PC emulation of a Renault car CD changer. With a small hardware interface, a carPC can then talk to the head unit, activate its SPDIF input, understand commands and send information back to the. ...File Name:TLPicEmu_v1.zip Author:tlcdcemuLicense:Freeware (Free)File Size:32 KbRuns on:N/ARS232 data logger AX monitors any number of serial ports, captures data from any devices connected to them and logs the information in a customized log file. It implements wide exporting functions: from a classic export to an ODBC database to a. ...File Name:asdlog_ax2.exe Author:AGG SoftwareLicense:Shareware ($44.95)File Size:686 KbRuns on:WinXP, Windows2000, Windows2003,Windows VistaRS232HCT is a second generation RS232 software application that expands on our earlier programs and makes RS232 communication, development, debugging and troubleshooting easier than ever!RS232HCT takes advantage of the .NET framework and is. ...File Name:rs232hct_10_demo.exe Author:Virtual Integrated DesignLicense:Freeware (Free)File Size:Runs on:Windows 2K, XP, 2003, Vista, XPX64, 2008, Vista64, 7, 7x64FREND2: Front-end to DtCyber. Runs in conjunction with DtCyber (a CDC 6000 emulator)
2025-04-106 pin jack looks like a phone jack) which is used by Solar Assistant or SOKTools.exe or PbmsTools.exeThe next two ports are RJ45 jacks which are CAN and RS485. The RS485 is connected to the BMS input on the inverter if you are using closed loop.Battery addresses normally start at 1 and increase. The battery with address 1 is the master and it collects data from the other batteries. The RS485 jack on this battery is connected to the BMS jack on the inverter.You need an RS232 to USB cable connected to the RS232 jack on the Master (address 1) battery. Plug this into SA and it will pull the data from all the batteries.This is the RS232 to USB cable I useYou can download the SOKTools.exe software from the Current Connected website. This software is a great tool for getting a look inside the batteries and monitoring individual cell voltages, temperatures and alarms. It's free so use it. Use the last link on the page #11 I’ve got the 485 on inverter going to SA and I’ve got the 485 on batteries going to SA. I was closed loop, which I liked, but now I’m open because SA is using the 485 on inverter. I’m letting SA read the SOC and determine being on grid or on batteries. So I need SA to read from the 232 plug to understand all the batts?I wish the inverter had 2 485 ports so I could stay closed comms and also talk to SA. WiFi port is useless correct?The board calls WI-FI 485-1HmmmmUPDATED BELOW: Sungold support is full of crapYes you can!I am now talking to the inverter on “WIFI port” aka (RS4851) and closed comms via RS485-2 to batteries 485.My next step is to order the RS232 cable and connect it to sok tools/Solar Assistant. So I benefit from BMS inverter closed comms, 485 communication to pi (no more usb b onboard converter) and 232 comms to sok tools or sa to better understand battery granular detailsMaking progress and learning! Awesommmeeee Last edited: Sep 5, 2024 #12 The WIFI port uses pins 1&2 for power to the dongle DO NOT USE. Pins 7&8 are the RS485 bus pins that can be used for SA via an RS485 to USB Converter. This is what I use and I have had no problems. The dongle uses pins 1&2 for power and uses pins 7&8 to pull data from the inverter. The communications protocol on this port is SRNE Modbus.I use pins 7&8 of the WIFI port for SA or the IPower.exe monitoring software (one or the other, not both at the same time). I use an RJ45 splitter and all I need to do if I want to run IPower.exe is to access SA via it's web and on the Configuration tab disconnect the Inverter and Battery connections. I also have an RJ45 splitter from the battery stack to both SA and to my computer so I can run SOKTools.exe. I just disconnect
2025-04-21