CMD-LOG-TO-STRING32

Owned by Former user (Deleted)
Nov 15, 2017
1 min read

Must use Destination RTDB type of String32. When a command output is written to the field device, a String value is stored giving information about the command. If the Count is greater than 1, then multiple String-32 registers will contain a history (ring buffer) of the last several commands. This feature can be used to provide a SCADA or MQTT host with information on command output history.

For instance, if Count is 4 and Destination Register is 48001, then the first four command outputs will be logged to 48001, 48002, 48003, and 48004. If a 5th command is received, it will overwrite the value in 48001. Examples of String-32 contents for logged data:

  • 1115 143557 00001x01 ON – Single register write on date 11/15 14:35:57 to register 00001 (count 01), value=ON
  • 1115 170954 00001x05 10010 – Multiple register write on date 11/15 17:09:54 to registers 00001-00005 (count 05), values: 1=ON 2=OFF 3=OFF 4=ON 5=OFF
  • 1115 143655 40001x03 00000063 – Integer write to 40001-40003 (count 03), value of first register=99 (0x0063)
  • 1115 143717 41003x01 00030d41 – Long integer write to 41003 (count 01), value of first register=200,001 (0x00030d41)
  • 1115 143729 42001x01 40490f52 – Floating point write to 42001 (count 01), value of first register=3.1456 (0x40490f52)