I/O modules are building blocks of industrial control systems used in end equipment such as PLC (Programmable Logic Controllers), PAC (Programmable Automation Controller) and DCS (Distributed Control ...

Check the module's power and logic indicators. They should change state as you vary that input. If they don't, the module isn't responding. This used to mean an automatic replacement, but it may be ...

Phoenix Contact has recently introduced a new range of PLC logic modules. With networking via RS-485 Modbus/RTU, PLC logic – a combination of a switching device and controller – can be easily and ...

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 ...

AutomationDirect input simulator and high-current relay output modules added to CLICK PLC line. AutomationDirect has added higher amperage relay output modules and an 8-point input simulator module ...

Multiple input/output Programmable Logic Controller (PLC) module for educational purposes is fabricated because of current PLC Kit that was unable to enhance learners theoretical understanding and ...