Introduction to timers in the SLC-500 Processor. Timers in the SLC-500 processor are very similar to timers in other AB Processors. There are 3 types of timers: On Delay (TON), Off Delay (TOF) and the Retentive Timer (RTO). The On Delay Timer (TON) delays the Done bit (DN) from turning Read More »
Introduction to Trapping in the SLC-500 In this document, I will guide you through my method of trapping in the SLC-500. We will use this tool to find intermittent problems. For example: a guard door, pressure switch, thermal switch, or other inputs could shut down your process. Be aware that Read More »
Introduction to the SLC-500 Histogram We use the SLC-500 Histogram to track infrequent bits (such as Intermittent problems) and bits that change quickly in the processor. A common use for the histogram is to find intermittent problems. In this post, I will guide you through the procedure for setting up Read More »
