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Analog output command

master sends command to change the value, outstation receives the command and sends back the output status to confirm the new value. 

Output command event reports that a command has been attempted on outstation's corresponding analog output data point. 

There are two operating modes to execute analog output command: 

  1. Remote mode: Value 0 

    The operating condition where the outputs will be controlled by the master which is located remotely.  

  2. Local mode: Value 1 

    The operating condition where the outputs are operated locally at the device where the mapping points are physically located. 

Analog output command events can be exchanged between the outstation and master using following event variations:  

  1. 32-bit without time – unscaled analog input current value is reported to master as signed 32-bit integer without timestamp. Range is from -2147483648 to +2147483647. 

  2. 16-bit without time – unscaled analog input current value is reported to master as signed 16-bit integer without timestamp. Range is from -32768 to +32767. 

  3. 32-bit with time – unscaled analog input current value is reported to master as signed 32-bit integer with exact time of event occurrence. Range is from -2147483648 to +2147483647. 

  4. 16-bit with time – unscaled analog input current value is reported to master as signed 16-bit integer with exact time of event occurrence. Range is from -32768 to +32767. 

  5. Single precision floating point without time– unscaled analog input current value is reported to master as 32-bit floating (data type REAL) without timestamp. Range is from -3.4*10^38 to +3.4*10^38. 

  6. Double precision floating point without time – unscaled analog input current value is reported to master as 64-bit floating (data type REAL) without timestamp. Range is from -1.7*10^308 to +1.7*10^308. 

  7. Single precision floating point with time– unscaled analog input current value is reported to master as 32-bit floating (data type REAL) with timestamp. Range is from -3.4*10^38 to +3.4*10^38. 

  8. Double precision floating point with time – unscaled analog input current value is reported to master as 64-bit floating (data type REAL) with timestamp. Range is from -1.7*10^308 to +1.7*10^308