Noise can sometimes be introduced into a sensor input by a power supply or other high-powered equipment. Using a high-quality power supply is always a good idea. Noise on the input is seen when the input value jumps around sporadically, especially for a normally stable sensor reading such as for temperature or pressure. When there…
Read More Noisy or jumpy Analog Input, input value rapidly changing.
Adding IO modules to your HMC project is as simple as allocating the correct module part number to the correct slot under the “IO Allocation” folder in your project. Receiving a mismatch error on boot up could be due to the following reasons: 1) a module is physically present in a slot for which a…
Read More Error in Slot No: Troubleshooting IO Expansion Mismatch error on HMC
Take into consideration the difference in IO modules. If your HMC7000 series project uses IO, these modules will be removed from the IO Allocation folder in the project, yet the tags for the IO module will remain. To automatically remove any unused tags, open the IO Allocation > Expansion window and configure the slot to…
Read More Converting a MAPware-7000 project from a HMC7000 series model to a HMC3000 series model
In IEC mode, tags cannot be given local addresses by the user. If you delete auto-generated tags and want to get them back, open the IO configuration wizard (IO Allocation > Expansion) and reconfigure the module. Just click the dropdown menu and select the configuration that you want, even if it is already set to…
The analog inputs can be configured for Type J or K only, with two config. Values for each for displaying the read value in C or F temp scale. These values can be loaded into the Analog Input Configuration Registers MWnn60-MWnn63, where “nn” is the slot number and “60-63” designates the config register for the…
Read More Notes on Configuring Thermocouples for the HMC3000 series IO Modules.
NPN (Sinking) and PNP (Sourcing) are two types of transistors used for digital outputs. The terms Sinking and Sourcing refer to current flow with respect to the terminal pin on the IO card. A device is called sinking if current flows into the terminal, and is called sourcing if current flows out of the terminal.…