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Messages - acxysty

Pages: 1 [2] 3
16
Frequently Asked Questions / Re:Nano Client over few servers
« on: May 08, 2014, 01:53:22 AM »
Thank you for your answer.  It works fine the way you describe and we use it a lot.

However we never get the Status(3) flag changing according to connect or non-connect.

Any idea why ?

Regards

17
Frequently Asked Questions / Nano Client over few servers
« on: May 07, 2014, 12:26:30 AM »
Dear all

We are using Nano as client Modbus/TCP and we would like to communicate with several servers without opening and closing the sockets.
Is there a way to do that ?
Regards
TY

18
Technical support / IRQ ; How it works ?
« on: March 19, 2014, 04:27:03 AM »
Hello Tri PLC
We have some difficulties in understanding how IRQ works on Nanos and FMD. We know how IRQ work on a micro-controler. But it looks rather different on your products. Could you give us some more information on this subject ?
Regards
TY

19
Technical support / Re:How to limit the memory access
« on: March 14, 2014, 02:32:02 AM »
Thank you for your answer.
Regards
TY

20
Technical support / Re:TCP server
« on: March 14, 2014, 02:31:49 AM »
Thank you for your answer.
Regards
TY

21
Technical support / TCP server
« on: March 13, 2014, 09:32:21 AM »
We have an application that need to manage the Mobus TCP server : sometimes it has to be ready to be open and sometimes it has to be closed without going out of the runing program.
How can we manage that ?
Regards

22
Technical support / How to limit the memory access
« on: March 13, 2014, 05:21:40 AM »
Dear All

We are extensively using Nano and FMD in our systems. We are very happy with them.

We usually communicate with MODBUS over TCP with external devices and it works fine. But this protocol gives an acces to the whole memory space.

Is there a way to limit the memory access by MODBUS overTCP  to a limited memory space eg DM 1 to DN100.

Regards

TYS


23
Technical support / How can I download Trilogy ?
« on: February 04, 2014, 07:08:16 AM »
Hello
We are regular customer for Nanos and FMDs PLC and registered user.
I would like to down the software from your website. How should I proceed ?
Regards
Thierry

24
Frequently Asked Questions / PID FMD 88-10
« on: January 25, 2014, 11:17:44 AM »
Hi,

My system is as follows, I have two gas lines with on each line a proportional valve and a pressure sensor.

At first I opened my first proportional valve with setPWM function.

I'd like to do a pressure regulator to compensate the pressure that I have on the first line of gas by opening my second line to have a delta of zero pressure.

For this I use the PID function with the FMD 88-10 and a PWM to manage the opening and closing of each of my proportional valves.

My problem is that I don't know how the PID on FMD works including the PIDcompute function.

Can you help me?

Thanks

25
Technical support / Communication RS 232
« on: April 22, 2013, 03:19:17 AM »
Hello,
I would like to communicate via the RS 232 between FMD88-10 and a masflow that communicates RS-232.
I try to send a string of such "070304716271620E" then Carriage Return and Line Feed.
I configured the same way the two products are: 1 start bit, 8 data bits, no parity and 1 stop bit.

My program:

in FirstScan
SETPROTOCOL 1.10
SETBAUD 1, & H06

then:

PRINT # 1 "070304716271620E" &H0D; &H0A;
FOR I = 1 to 10000
A $ = INPUT $ (1)
NEXT

By sending the same through the hyperterminal with my PC running Windows XP it worked! Can you help me this is quite urgent.
thank you

26
Technical support / Re:Nano as client LabView as server
« on: February 19, 2012, 12:55:05 PM »
Thank you Support for this information.

We will test that and report to you.

Regards

Thierry

27
Technical support / Re:Nano as client LabView as server
« on: February 18, 2012, 04:14:52 AM »
Thank you. This is a very valuable answer.

I fully agree with your comments regarding the PC/Labview time scale : it is not acceptable and we are going to investigate on this point.

Because of this long delay we introduced a long delay (10 sec) before closing the TCP connection between PLC and PC. But this did not help regarding the change the STATUS(2).

This mean that STATUS(2) remain avaliable for a change for a short time after the WRITEMOBUS command. Have you any idea of this 'opening time' ?

Best regards

Thierry

28
Technical support / Re:Nano as client LabView as server
« on: February 17, 2012, 10:47:27 AM »
Dear Support

Thank you for your feedback.

We understand that statuts(2) and (3) are for PLC working as a client.

After many hours of testing we could not get the Statut (2) going to 1....

Let me sum up the situation :

PLC(FMD) is client , PC/labview is server.
PLC open the connection OK
PLC send the modbus/TCP frame OK
PC/labview read the frame OK and do the job
PC/labview built the returm frame and sent it to PLC (seen by wireshark). We believe that the frame is OK because we can retrieve all the MODBUS protocole.
But STATUT(2) remains to 0!!

The same with 2 PLC (Nano and FMD) works ok.
One difference is the time to do the whole operation :
it takes over 5 sec in PLC/PC situation and a couple of 100 ms with PLC/PLC.

So we use SETSYSTEM 1, 100 in order to have a longer waiting delay (15sec) but it makes no changes. Is this acting on MODBUS/TCP ?

Any suggestion where to look at ?


Regards

Thierry

29
Technical support / Re:Nano as client LabView as server
« on: February 16, 2012, 09:08:06 AM »
Good morning !!

It looks like it works from Nano to PC and from PC back to Nano but we have no change of STATUS(2). Status(3) changes according to the TCP connection.

We have monitored the frames in both direction with Wireshark and we are sure that the frames are OK.

We have change setsystem 1, 128 to keep the port open for a 20seconds but it makes no difference.

So our question is : what status(2) is checking ? and why it does not change state when an appropriate response is sent by PC ?

We have done the same experiment between Nano and FMD and it works great with Status(2) and Status(3) doing what we expect !!

Regards

Thierry




30
Technical support / Re:Nano as client LabView as server
« on: February 15, 2012, 11:19:47 PM »
Hi

Thank you for your quick feedback.

According to your explanation, when client Nano will be able to read  frames on the 57XXX port when the TCP link is established ? we will test that this morning !!  Just for my understanding, reading on COMM4 is not only made on port 502 ?

We have tested the reverse configuration : PC client / Nano server and it works fine so the protocole is OK.

Regards

Thierry

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