AlexUT

Hi, No, PLC cannot receive e-mails. But you can communicate to PLC via MODBUS, TCP RAW or other supported protocols. BR

Hi, Please send your request to support@unitronics.com BR.

bm_engineering, Please send your original project and explanation of your changes to simulate problem to support@unitronics.com BR.

Hi amirm, By design, Modbus protocol itself provides no security against unauthorized commands or interception of data. BR

Hi, Raymond: Each supported modem have different set of AT commands, especially extended commands. If your modem is not in supported modems list - you can realize everything by use of FB Protocol. Unitronics sale 2 Modem Kits. These kits are widely used and supports SMS and GPRS. See Accessories section: http://www.unitronics.com/plc-hmi/accessories adil: You have to run 'Prepare PLC side modem" firs. Use 9 pin serial cable from modem kit.

Hello, Unitronics software is Desctop OS oriented. Unitronics Support Download section: http://www.unitronics.com/support/downloads Includes Software system requirements, which is constantly updated: http://www.unitronics.com/docs/technical-library/software-system-requirements.pdf?sfvrsn=0 Server platforms are not supported officially, as them intended to run different software, like e-mail servers, data base engines etc. I hope this answers your question.

Hi, Tell us about used VisiLofic version, PLC model, and Syatem files versions. Then we will provide you better advice. BR.

Hi, No, only one of them will be used. You can add displays to trace variables when SMS works.

Hi, Do "Help->Check for Updates->Operating System". After downloading an updated OS, update it at JZ20 and repeat test.

This embedded image cannot be opened. imageshack site is blocked in our company. Did you tested COM port 2? Do it sequentially 3-5 times. Change Timeout and Retries. If you continue to face this problem - send support request to support@unitronics.com

No error screen attachment.

Hi, What are PLC system files versions (from Info mode)? What VisiLogic version did you used? Power-off PLC, keep I button pressed and power-on. PLC will start in OS Stop mode. Check communication. Enter Info mode, enter System, scroll to select Erase. This will erase mostly all. After erasing, PLC stay in Bootstrap mode. You have to use COM 1 of PLC to communicate and download OS, and then application. I hope this helps. BR.

What is an image format you use for download to PLC?

Hi, You can use MODBUS. After establishing connection via GPRS, or dial, do MODBUS Configuration and enable ScanEX for Slave, or MODBUS Configuration and Read/Write for Master. I hope this helps. BR.

Hi, What are models of OPLCs you use? How many and what data you wish to send/receive? How many PLCs will be in network? Keep in mind that communication speed is limited to 9600 bps. BR.

Hi, Send your request to support@unitronics.com, and we will forward it to responsible department for evaluation. BR.

Hi, You can protect by password Reset and Acknowledge operations. Anybody can push external button and reset/acknowledge alarm. The meaning of such design is to bring REAL operator attention, and sometime keep a record who did reset/acknowledge of alarm. This is a requirement of standards for specific industries. BR.

Hi, Reset and Acknowledge bits are outputs, and changed to ‘1’ when corresponding buttons of Alarm screen pressed. Alarms support is embedded into OS, and there is no access to Reset and Acknowledge button bits. The meaning of such design is to bring operator attention and lead to action. BR.

Hi, Ideal is to register filling and consumption. Level detectors will help against overflow. As I see, you already have consumption meter. When you add filling meter - you will have 2 numbers - income and outcome. Difference will be read at the end of day. I hope this helps.

Hi, In accordance to specification of IO-D16A3-TO16, max. PWM frequency is 32K. MI is fitting this. You stop PWM by writting 0 frequency. *You should use slowest servo when connect to IO module. B.R.

Hi Gabriel, I save csv file each 0.1 sec and at the same time transferred to web folder large file during 25 minutes. No errors happens. If you wish our help - send your project to support@unitronics.com and we will do our best to simulate and correct problem. It will be useful to know content of SD card web folder and list of updated files. Ideal will be to have your project, SD card image and zipped files you used for update. This will allow to simulate wery similar to you configuration. B.R.

Hi Gabriel, Are web pages accessed when you update files? What communication protocol you use? Send your project to support@unitronics.com and we will do our best to simulate and correct problem. B.R.

Create Data Table and trace sending email results. do retry for one email for statistics. Save failure code. You can open DOS window at your PC/Laptop and connect to e-mail server by Telnet "telnet xxx.xxx.xxx.xxx 25" (You can find at Internet how to do this). Check server replay and send short e-mail. Look for replay. This will tell you if PC to E-mail Server communication works or not. Do the same test with other email provider. For me it seems E-mail provider problem. You can create Data Table, where you fix e-mail send result and error codes. Retry sending email to other e-mail server at the time when error happens. Ask in forums if anybody have the same problem to send e-mails with the same e-mail server. B.R.

You have to check if SMS in SIM memory are valid (defined in SMS Configuration). Not valid SMS stay in SIM memory and fill it. In this case you have to schedule SMS memory clean. See Help description for SB 193 and SI 187.

Did you realized previous recommendations?