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Logic Machine Forum › LogicMachine eco-system › Gateway v
Delta DVP

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Delta DVP
Demus Offline
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#1
24.08.2017, 13:52 (This post was last modified: 24.08.2017, 13:54 by Demus.)
Hi! 
I don't have any experience with Lm. But there is a device on the Modbus to link LM. Please help in creating a profile for the survey of inputs, outputs, and data registers. Map Delta DVP registers and Protocol description for them I've attached.
Thanks in advance for your help in the study of Lm.
   
.doc   DVP_ communication Protocol.doc (Size: 388.5 KB / Downloads: 7)
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admin Offline
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#2
24.08.2017, 17:42
Does it support Modbus RTU? Have you tried communicating with it using RTU read test? From the supplied documentation it seems that PLC uses Modbus ASCII which is not supported by the Modbus mapper.
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Erwin van der Zwart Offline
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#3
24.08.2017, 21:43 (This post was last modified: 24.08.2017, 21:46 by Erwin van der Zwart.)
Hi,

Delta has there own protocol to a IP gateway, this gateway uploads data to the Delta Cloud Service and there is no API.

What i have done before is reading the Delta gateway's HTTP pages to get the data from it.

It's written for our HVAC SmartStruxure Lite controller, also LUA but it should be easy to port to the LM controller format.

Code:
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
-- ******** Delta Solivia GW -> MPM module version 1.0 created by Erwin van der Zwart ******** 2015-12-10 ******** --   if not init then  -- Import libraries  require ("http")    -- Set timout for max wait time on HTTP response  http.TIMEOUT = 15    -- Delta Solivia GW Settings  IP_Address = '192.168.10.207'  UserName = 'admin'  PassWord = 'Schneider'    -- MPM objects  var("Absolute_Maximum_In_We_Object", "ME.AV44")  var("Percentage_Of_Nominal_Power_Object", "ME.AV45")    -- End init  init = true else     -- Login before requesting data     if not login then         response = http.request('http://' .. IP_Address .. '/LoginCgi?ed_user=' .. UserName .. '&pw1=' .. PassWord .. '&logIn=Log+in')       -- Check if Response = successfully completed       for i in string.gmatch(response, '<body><br><h2 align="left"><font color="#339900">.-</font>') do         if i ~= nil then           responsestring =  i:match([[color="#339900">(.-)</]])           --print(responsestring)         end       end       if responsestring == 'Operation successfully completed!' then         print('Login procedure ready, getting values..')         login = true       end     else       -- Get data from webservice       local data = http.request('http://' .. IP_Address .. '/Unbalanced.htm')              --print(data)              -- Check if data is received       if not data then         print('No data found.. , restarting procedure to try again..')         login = nil         return       end              -- Check if login is handled correct       for i in string.gmatch(data, '<h2>.-</h2>') do         if i ~= nil then           login_asked = i:match([[<h2>(.-)</h2>]])           if login_asked == 'Please log in' then             print('Login not ready or logged out, system will try to login again..')             login = nil             return           end         end       end              -- Power Balancing       for i in string.gmatch(data, '<input type="text".-</p>') do         if i ~= nil then           --print(i)                      absolute_maximum_in_We = i:match([[name="t1" value="(.-)"]])           if absolute_maximum_in_We then            Absolute_Maximum_In_We_Object = absolute_maximum_in_We             print('Absolute maximum in We = ' .. absolute_maximum_in_We)           end                      percentage_of_nominal_power = i:match([[name="t2" value="(.-)"]])           if percentage_of_nominal_power then            Percentage_Of_Nominal_Power_Object = percentage_of_nominal_power             print('Percentage of nominal power = ' .. percentage_of_nominal_power)           end         end       end       -- Add extra data pagefields here...  end --End Login end -- End init

BR,

Erwin
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Demus Offline
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#4
25.08.2017, 06:19 (This post was last modified: 25.08.2017, 06:26 by Demus.)
(24.08.2017, 17:42)admin Wrote: Does it support Modbus RTU? Have you tried communicating with it using RTU read test? From the supplied documentation it seems that PLC uses Modbus ASCII which is not supported by the Modbus mapper.

Yes, Modbus rtu is supported. He included me in the PLC. Test to read from register LM is successful. I have difficulties to describe the profile line to read for example the register D0 at the address 4096.
With this option the register is not read. Don't understand what the problem is.

 { "name": "Input 1", "bus_datatype": "float16", "type": "inputregister", "address": 4096, "value_multiplier": 0.001, "units": "V" },

    { "name": "Input 2", "bus_datatype": "float16", "type": "inputregister", "address": 4096, "value_multiplier": 0.001, "units": "V" },
(24.08.2017, 21:43)Erwin van der Zwart Wrote: Hi,

Delta has there own protocol to a IP gateway, this gateway uploads data to the Delta Cloud Service and there is no API.

What i have done before is reading the Delta gateway's HTTP pages to get the data from it.

It's written for our HVAC SmartStruxure Lite controller, also LUA but it should be easy to port to the LM controller format.

Code:
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
-- ******** Delta Solivia GW -> MPM module version 1.0 created by Erwin van der Zwart ******** 2015-12-10 ******** --   if not init then  -- Import libraries  require ("http")    -- Set timout for max wait time on HTTP response  http.TIMEOUT = 15    -- Delta Solivia GW Settings  IP_Address = '192.168.10.207'  UserName = 'admin'  PassWord = 'Schneider'    -- MPM objects  var("Absolute_Maximum_In_We_Object", "ME.AV44")  var("Percentage_Of_Nominal_Power_Object", "ME.AV45")    -- End init  init = true else     -- Login before requesting data     if not login then         response = http.request('http://' .. IP_Address .. '/LoginCgi?ed_user=' .. UserName .. '&pw1=' .. PassWord .. '&logIn=Log+in')       -- Check if Response = successfully completed       for i in string.gmatch(response, '<body><br><h2 align="left"><font color="#339900">.-</font>') do         if i ~= nil then           responsestring =  i:match([[color="#339900">(.-)</]])           --print(responsestring)         end       end       if responsestring == 'Operation successfully completed!' then         print('Login procedure ready, getting values..')         login = true       end     else       -- Get data from webservice       local data = http.request('http://' .. IP_Address .. '/Unbalanced.htm')              --print(data)              -- Check if data is received       if not data then         print('No data found.. , restarting procedure to try again..')         login = nil         return       end              -- Check if login is handled correct       for i in string.gmatch(data, '<h2>.-</h2>') do         if i ~= nil then           login_asked = i:match([[<h2>(.-)</h2>]])           if login_asked == 'Please log in' then             print('Login not ready or logged out, system will try to login again..')             login = nil             return           end         end       end              -- Power Balancing       for i in string.gmatch(data, '<input type="text".-</p>') do         if i ~= nil then           --print(i)                      absolute_maximum_in_We = i:match([[name="t1" value="(.-)"]])           if absolute_maximum_in_We then            Absolute_Maximum_In_We_Object = absolute_maximum_in_We             print('Absolute maximum in We = ' .. absolute_maximum_in_We)           end                      percentage_of_nominal_power = i:match([[name="t2" value="(.-)"]])           if percentage_of_nominal_power then            Percentage_Of_Nominal_Power_Object = percentage_of_nominal_power             print('Percentage of nominal power = ' .. percentage_of_nominal_power)           end         end       end       -- Add extra data pagefields here...  end --End Login end -- End init

BR,

Erwin

I think you are on the other controllers speak. I'm working with this on rs-485. 
http://www.deltaww.com/Products/Category...2%20Series
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admin Offline
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#5
25.08.2017, 06:49
Try changing type to "register"
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Demus Offline
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#6
25.08.2017, 06:56 (This post was last modified: 25.08.2017, 07:07 by Demus.)
(25.08.2017, 06:49)admin Wrote: Try changing type to "register"

Thank you very much! Works!
One more question. Can I one and the same port to use for the survey using a script and using the profile? Devices are polled different.
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admin Offline
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#7
25.08.2017, 08:15
Yes, but modbus proxy functions must be used, see this post for more info: https://forum.logicmachine.net/showthrea...53#pid1953
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