SQLData object assigned attribute write semaphore

When the SQLData object initiates a data transfer to the assigned attributes, a semaphore (SemaphoreAttrWrite Boolean attribute) is set to TRUE. The semaphore prevents the object from performing multiple writes to the assigned attributes within a preset time period. This prevents multiple users from writing to the assigned attributes simultaneously. The semaphore can be used on the HMI to indicate that an assigned attribute write is in progress.