|
Written on: 19. 08. 2009 [17:20]
|
|
villalta0218
Miguel Ortiz
Topic creator
registered since: 19.08.2009
Posts: 3
|
Hello
Good job, very impressive program. 
I need help with one project
I was able to configure your program to manual request the state of a coil, and receive the right answer from the PLC, but I need more for this project.
To start:
It is possible connect to three different PLC with Modbus TCP/IP protocol; to continue read from specific registers or coil, and record the state changes on a table with a day and time went this changes occurs; If your answer it is yes. Can you explain to me how?
Best Regards,
|
|
Written on: 19. 08. 2009 [23:33]
|
|
Aleksey
Aleksey Popkov
Contributor
registered since: 31.07.2008
Posts: 326
|
http://wiki.oscada.org/HomePageEn/Doc/ModBus?v=12s1
|
|
Written on: 20. 08. 2009 [09:29]
|
|
roman
Roman Savochenko
Moderator Contributor Developer
registered since: 12.12.2007
Posts: 3750
|
villalta0218 wrote:
It is possible connect to three different PLC with Modbus TCP/IP protocol; to continue read from specific registers or coil, and record the state changes on a table with a day and time went this changes occurs; If your answer it is yes. Can you explain to me how?
Yes of course. And write to table it is simple and standard value archive: http://wiki.oscada.org/HomePageEn/Doc/FSArch or http://wiki.oscada.org/HomePageEn/Doc/DBArch .
Learn, learn and learn better than work, work and work.
|
|
Written on: 20. 08. 2009 [20:06]
|
|
villalta0218
Miguel Ortiz
Topic creator
registered since: 19.08.2009
Posts: 3
|
Thank you, for your immediate reply.
|
|
Written on: 17. 09. 2009 [17:15]
|
|
villalta0218
Miguel Ortiz
Topic creator
registered since: 19.08.2009
Posts: 3
|
System=CENTOS 5.3
Linux-2.6.18-128.7.1.el5
On the data acquisition module:
if I do changes on the web interface the period of the task on data acquisition modulo (modbus sub modulo) to be 1800s, this parameter is record to be only 100s on the table and it is display like 100s on the web interface; if I change this parameter directly to the table, the table take the changes but the web interface only display 100s and also the acquisition occur every 100s
is 100 sec the maximum?
can I modified the period of the task data acquisition to be longer of 100 sec?
how I can change this parameter to be longer of 100 sec?
|
|
Written on: 17. 09. 2009 [19:11]
|
|
roman
Roman Savochenko
Moderator Contributor Developer
registered since: 12.12.2007
Posts: 3750
|
villalta0218 wrote:
if I change this parameter directly to the table, the table take the changes but the web interface only display 100s and also the acquisition occur every 100s
is 100 sec the maximum?
It is correct limit to maximum period.
villalta0218 wrote:
how I can change this parameter to be longer of 100 sec?
I has add call planing by cron-schedule today, for this module. Use it for long period planing.
Learn, learn and learn better than work, work and work.
|
