WebHMI Docs

User Tools

Site Tools

hydrus-flowmeter

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
hydrus-flowmeter [2023/08/17 11:03] – emozolyakhydrus-flowmeter [2023/08/18 08:32] – emozolyak
Line 1: Line 1:
 {{ :custom_protocols:mbus:hydrus-meter-for-mbus.jpg?direct&150|}} {{ :custom_protocols:mbus:hydrus-meter-for-mbus.jpg?direct&150|}}
-====== Connecting to HYDRUS by DIEHL flowmeter  ======+====== Connecting to DIEHL HYDRUS flowmeter ======
  
 <WRAP center round info 80%> <WRAP center round info 80%>
Line 16: Line 16:
 end  end 
  
-POLL_DELAY    = 60 -- poll rate constant in sec. +POLL_DELAY    = 60 * 15  -- poll rate constant in sec. 
 HEX_NUMBERING = 16 -- numbering system conversion  HEX_NUMBERING = 16 -- numbering system conversion 
  
Line 35: Line 35:
     end      end 
 end  end 
 +-- prints any parameters 
 function DBG(...)  function DBG(...) 
     for i = 1, #arg do      for i = 1, #arg do 
Line 48: Line 48:
  
 ------ Table helpers ----------------------------- ------ Table helpers -----------------------------
-function table.findPattern(t, pttrn) -- finds pattern in a table  tableFindPattern+function table.findPattern(t, pttrn) 
    
     for tabIndex, _ in ipairs(t) do      for tabIndex, _ in ipairs(t) do 
Line 60: Line 60:
             end              end 
         end         end
-  
         if matchFlag then          if matchFlag then 
-            return (tabIndex + #pttrn) -- start of data +            return (tabIndex + #pttrn) 
         end          end 
     end      end 
Line 68: Line 67:
 end  end 
    
-function table.sub(t, startIndex, endIndex) -- picks sub-table from a table +function table.sub(t, startIndex, endIndex) 
     local tmpTable = {}     local tmpTable = {}
     for k = startIndex, endIndex do      for k = startIndex, endIndex do 
Line 76: Line 75:
 end  end 
    
-table.hexView = function(hextab, spacer) -- get string of a hex view for a table  tabHexView+table.hexView = function(hextab, spacer) 
     local hex = {}      local hex = {} 
     for _, hexbyte in ipairs(hextab) do      for _, hexbyte in ipairs(hextab) do 
Line 89: Line 88:
     return tonumber(hex)     return tonumber(hex)
 end  end 
 +-- integer convertions 
 +table.int = function(t)
 +   return tonumber(table.hexView(t), HEX_NUMBERING) 
 +end  
 +
    
-function getHexByteAsStr(inputByte) -- gets 2 - char hex string of a byte + -- gets 2 - char hex string of a byte  
 +function getHexByteAsStr(inputByte) 
     local strByte = string.format("%X", inputByte)         local strByte = string.format("%X", inputByte)    
     return (#strByte == 1 and '0' .. strByte) or strByte     return (#strByte == 1 and '0' .. strByte) or strByte
 end  end 
  
-table.reverse = function (tab) -- reverses a table   reverseTable+table.reverse = function (tab) 
     local outTable = {}     local outTable = {}
     for i = #tab, 1, -1 do      for i = #tab, 1, -1 do 
Line 110: Line 115:
 CTRL_LONG_FRAME_STX = 0x68 CTRL_LONG_FRAME_STX = 0x68
  
-REQ_UD2             = 0x7B -- Request for Class 2 Data  +REQ_UD2             = 0x7B -- Request for Class 2 Data  FCB  
-REQ_UD2_            = 0x5B -- Request for Class 2 Data +REQ_UD2_            = 0x5B -- Request for Class 2 Data  Frame count bit 
  
 BRDCAST_NET_LAYER_ADDR = 0xFD  -- 253  BRDCAST_NET_LAYER_ADDR = 0xFD  -- 253 
Line 127: Line 132:
  
 dataHandlers = { dataHandlers = {
-    volume = {pattern = {0xC, 0x14}, length = 4, func = table.bcd},  +    volume = {pattern = {0xC, 0x14},       length = 4, func = table.bcd},  
-    flow   = {pattern = {0xB, 0x3C}, length = 3, func = table.bcd}, +    flow   = {pattern = {0xB, 0x3C},       length = 3, func = table.bcd}, 
-    tint   = {pattern = {0xA, 0x5A}, length = 2, func = table.bcd}, +    tint   = {pattern = {0xA, 0x5A},       length = 2, func = table.bcd}, 
-    text   = {pattern = {0xA, 0x66}, length = 2, func = table.bcd}, +    text   = {pattern = {0xA, 0x66},       length = 2, func = table.bcd}, 
-    err   =  {pattern = {0x4, 0xFD, 0x17} +    err   =  {pattern = {0x4, 0xFD, 0x17}, length = 4, func = table.int}
-              , length = 4 +
-              , func = function(d) +
-                          return tonumber(table.hexView(d), HEX_NUMBERING)  +
-                        end},  -- int32 convertion+
 } }
  
Line 200: Line 201:
 -------------------------- Other helpers -------------------------- -------------------------- Other helpers --------------------------
    
-function readUntil(endByte) -- read input buffer untils endByte or timeout  +function readUntil(endByte)  
-    local ONE_BYTE = 1  +    local ONE_BYTE, buf = 1, {}  
-    local buf = {}+    
     repeat      repeat 
         local rx = readBytes(ONE_BYTE)          local rx = readBytes(ONE_BYTE) 
         if rx then          if rx then 
-            rx = rx[1] +            rx = rx[1] ; table.insert(buf, rx)
-            table.insert(buf, rx)+
         end          end 
     until (not rx or (rx == endByte))     until (not rx or (rx == endByte))
Line 214: Line 214:
 end  end 
  
-function getCRC(a, pos, len)   -- calc. CRC sum for the mbus packet +function getCRC(a, pos, len)   
     local sum, mask  = 0, 0xFF     local sum, mask  = 0, 0xFF
    
Line 222: Line 222:
     end      end 
     return sum     return sum
-end  +end </code>
- +
- +
-</code>+
  
hydrus-flowmeter.txt · Last modified: 2024/02/20 14:42 by emozolyak
Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki