What is the easiest way to send a Tare command to the HI 1746WS?

The easiest method of sending the Tare command to the HI 1746WS is to:

1. Check for motion. The tare function will not operate if the scale is in motion. You can check for motion in I:x.15/6 (where x is your slot number).

2. Set O:x.14/1 to high. This will tell the module to do the Tare. This command is leading edge triggered so will do the command at the setting of the bit.

3. Word I:x.14/1 is an indication that the module received the command. This does not indicate whether the command succeeded.

4. If the command failed, I:x.15/14 is an error bit and would get set. If it passed, it would not be set. If it failed, the bit in step 2 would need to be reset and set again to run the command again. NOTE: The error bit is only valid during the time that the bit in word I:x.14/1 is set. Once the command is removed, the error bit is invalid.

There is not any actual time delay other than processor speed delays. The HI 1746WS module has a 50 msec processor. This means that it could take up to 100 msec for the module to receive the command, do the command, then update the weight and report back with the new reading.