Introduction to How to use RLIM The ControlLogix Rate Limiter (RLIM) slows the rate of change coming from a tag. Specifically, we usually use this for a set point. When an operator changes the setpoint on a PID instruction, there is an immediate change in the error. This change in Read More »
ControlLogix Moving Average (MAVE) The ControlLogix Moving Average (MAVE) allows you to smooth out a noisy process variable. In other words, if your signal is bouncing around, the MAVE instruction will smooth it out. For example, let’s consider a flow rate. Because of disturbances in the flow of a liquid, Read More »
Introduction to the ControlLogix Bit Field Distributor (BTD) The ControlLogix Bit Field Distributor (BTD) Allows us to map bits from one word to another. Particularly, when converting 32 bit data to 16 bit data, the BTD makes this very easy. In this case, we have a 32 bit input module. Read More »
Introduction to the PLC-2 On Delay Timer. Despite being obsolete and out of date, I still love to program the PLC-2. In this post, we’ll discuss the PLC-2 On Delay Timer. We use the TON instruction to delay the DN bit from energizing. You will see this on conveyors, so Read More »
Introduction to PLC-5 to ControlLogix Conversion RSLogix / Studio 5000 has a built in utility for PLC-5 to ControlLogix Conversion. Likewise, we can use the same procedure for converting an SLC-500 project. Because the PLC-5 is now obsolete, we will convert a PLC-5 project to use in a ControlLogix system. Read More »
Introduction to the FactoryTalk View Bar Graph Object The FactoryTalk View Bar Graph object provides you with a graphic indication of analog signals. In addition, we will set thresholds to change the color of the bar graph. By the same token, you could use a Gauge object. The object you Read More »
Introduction to the FactoryTalk View Gauge Object Generally, we’ll use a FactoryTalk View Gauge Object to graphically display an analog signal. In this example, we’ll display a bearing temperature. Additionally, we will set thresholds on the gauge object. This allows the gauge to change colors when certain thresholds are met. Read More »
Introduction to Clearing a Processor Fault Clearing a processor fault is very easy, however, we need to first get a description of the fault. Basically, we know we have a recoverable processor fault on a ControlLogix when the OK Light is flashing red. On the other hand, a solid red Read More »
Introduction to FactoryTalk View Library Animation With FactoryTalk View Library Animation, we will animate pre-made objects in the Library. Presently, these objects include conveyors, motors, pumps, etc. For many, finding the correct part of an object to animate is difficult. The library objects actually contain many smaller images that are Read More »
Introduction to RSLinx Gateway RSLinx Gateway is a version of RSLinx which allows you to access other types of networks. For exmple, you will have one computer that has a 1784-KTx or 1784-PKTx. This computer is connected to a Data Highway Plus network. This computer is also on the Ethernet Read More »
