[What happened to old forum?]

I hope don't lose the old forum, it's almost the wikipedia of Unitronics gurus.

[Jazz Communication Problem]

Hi Joe, Not all Serial to USB converters work with Jazz. You will need the Converter specified by Unitronics. With Vision PLCs and even with M90/91, any type of Serial to USB will suffice. Ron

It's true, not all usb-serial work with Jazz but they work with others Unitronics OPLCs. I have some customers had to buy the recomended Unitronics' converter.

[Upload NVRAM values]

It's a good point we talk about in the old forum. Today I have the remote access to do it but sometimes I am so lazy...

[Making Modbus easier]

I wondered about that when I saw the Modbus Protocol first time. Maybe because I was using a lot of HMIs with that way of work. It would be a wonderful tool for newbies in communications.

By the way, I've spent my three weeks of summer holidays and I can say it's not easy to work at 40ºC in the streets.

[timer or loop?]

500 ms is the time of the pulses of SB3.

My way:

First send the value of Inputs to Memory Bits but only when you want:

 SB3  I1   I0      MB0
--| |--|/|--| |-----( )
 SB3  IO   I1      MB1
--|/|--|/|--| |-----( )

Then use MB0 and MB1 instead of I0 and I1 in your application.

[Modbus to SD]

There is other good:

One of the slave modbus is a energy meter and the manufacturer has a software to read its values. Now the V130 is a Gateway Modbus RTU to Modbus TCP too. This way the software can connect via internet (ADSL)with the remote energy meter. The application is a replication of the address RTU to TCP.

The future will be to it via GPRS. A question: is possible to connect with a V130 in "Modbus TCP GPRS"??

[Modbus to SD]

Hello, [off topic] This will be my first "real" topic in this new brand forum. I hope it will be so good as the old forum [/off topic]

I finished a little project to make a Datalogger with a V130. Someone could ask: anything else?

Well, it's an easy application for Unitronics but we realized that it's hard to find in the market a datalogger so open and cheap.

The project is simple:

1.- To read datas from a Modbus Slave

2.- Prepare the datas

3.- Save the datas in the microSD of the V130 (In spanish you have to do some changes for the standard way to create a CSV)

Easy? now go to find a Datalogger in the market with the powerful of the V130.