In the previous two issues of this newsletter, we looked at troubleshooting digital input modules. Basically, we looked for the presence or absence of a voltage. With analog modules, it's trickier ...
Does the module's output correspond correctly to its input? Determine that by forcing the PLC output to 10%, 25%, 50%, 75%, and 90% and measuring on the output terminals at the corresponding range ...
AutomationDirect's Productivity2000 programmable logic controller provides two independent single-ended 5-24 VDC inputs that accept up to 100kHz of pulse/direction and quadrature signals. The ...
Analog CPU modules released for small PLC line. Variety of analog and discrete I/O enhance versatility in small form factor. The Click PLC from AutomationDirect now includes three analog CPU models.
Narrow-band low-frequency power-line communications (NB LF PLC) relies on the modem's power supply unit for good performance. This article introduces a design for a PLC-compatible PSU. Narrow-band low ...
Company Announcement - IDEC announces a new model in its FT1A Touch micro programmable controller series of combo HMI+PLC units, the FT1A Touch 14 I/O. New features make the FT1A Touch 14 I/O suitable ...
Semitech offers the SM2480, a single chip that integrates a grid-connected analog and PWM signal controller and an N-PLC (narrowband power-line communication) modem for use in solar inverters, ...
In industrial applications, controlling relays, servos, solenoids, and the like isn’t just a matter of wiring in an Arduino and plugging in some code. No, for reliable operation you’ll need a PLC – a ...
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