I need to modify the Modbus integration strategy to accommodate IEEE 754 Float (32 bit) from a Watlow F4T Temperature Humidity controller.
Thought i would check here for some ideas before I jump headlong into this and change my brain chemistry forever…
Has anyone started this project already?
             
            
              
           
          
            
              
                Beno  
              
                  
                    October 26, 2020,  7:37pm
                   
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              What controller are you using?
             
            
              
           
          
            
            
              Snap S2 and an SCM serial Module in position 0 with and EB2.
             
            
              
           
          
            
              
                Beno  
              
                  
                    October 26, 2020,  7:49pm
                   
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              Paging Dr @philip  to the thread.
             
            
              
           
          
            
              
                philip  
              
                  
                    October 26, 2020,  9:32pm
                   
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              It’s been a while since I’ve used the integration kit, but I thought it already handled floats? Is there a particular issue you are having with it?
             
            
              
           
          
            
              
                LadyBNC  
              
                  
                    October 26, 2020, 10:00pm
                   
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I can not seem to get it to work with IEEE 754 single precision signed floats.
16 bit works fine. Ill check my parameters again.
             
            
              
           
          
            
              
                philip  
              
                  
                    October 26, 2020, 11:09pm
                   
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              Try using data type 3 in the integration kit - which is for the least significant 16 bits in the lower register. I think that is the default for your device.