The signals from DC sensors used in PLC digital input (DI) modules are typically of a higher voltage and are usually isolated through opto-couplers before going into a shift register to be serialized.

But this time, they wouldn’t share L1. Instead, each would be supplied by L1a, L1b, L1c, and L1d. Your first step in troubleshooting digital input modules is to verify the power sources: Identify ...

Digital/binary sensors and switches are essential for signal monitoring and system control in industrial control, industrial automation, motor control, and process automation. All the sensors’ outputs ...

The MAX31911 (U1) industrial interface serializer translates, conditions, and serializes the 24V digital output of sensors and switches used in industrial, process, and building automation to ...

Bachmann electronic provided the DIO280 digital input and output module with an extended range of functions: The integrated counters and outputs for pulse width modulation (PWM) provide the device ...

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 ...

In this design the industrial digital-input serializer (U1) translates, conditions, and serializes the 24V digital output of sensors and switches to CMOS-compatible signals required by ...