Messages

1

Feature Request / Re: ModbusTCP Driver Standalone?

« on: March 23, 2017, 02:57:54 PM »

Thank you very much for the info!

Have a great day!

2

Feature Request / ModbusTCP Driver Standalone?

« on: March 23, 2017, 10:39:48 AM »

Good Day Archie,

I really appreciate the awesome work you created under the GPL, thank you for that.

I have come across a project where my client has requirements that are so custom, that I have to write an app from scratch and cannot really use your work, but I am interested in obtaining your ModbusTCP driver.

Is it available under GNU?
Is it available under purchase?

If it is available, do you have documented how to use it in other apps?

I thank you for you time,

Pierre

3

Support Questions / Re: V3.99_ModbusTCPcom Multiple Addresses Issues

« on: March 22, 2017, 10:34:38 AM »

Hello Archie,

You were right, the PLC address range was incorrect.
Thank you for the quick reply and support!

Pierre,

4

Support Questions / V3.99_ModbusTCPcom Multiple Addresses Issues

« on: March 22, 2017, 09:10:40 AM »

Hello,
I have a PLC (Siemens S7-1214c);  ModbusTCP; VS2017 Pro

I have added to the project the ModbusTCPcom object,
set up the IP address, TcpipPort, UnitId.  Swap Bytes=T Swap Word=F
The first address I need to read in my PLC is 40001, the last is 40010.

If I set the MaxReadGroupSize to 10: I receive the Illegal Data Value for all addresses
If I set the MaxReadGroupSize to 1: I receive the Illegal Data Value for all addresses except for 40001

What am I doing wrong? 
Can the ModbusTCPcom object read more than 1 address?

I thank you for your assistance.

Pierre,