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 ...

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 ...

Industry’s Traditional Digital-Input Architecture Digital/binary sensors and switches are essential for signal monitoring and system control in industrial control, industrial automation, motor control ...

Higher amperage relay output modules and an 8-point input simulator module are now available from AutomationDirect for the Click series stackable micro brick PLCs. The Click C0-04TRS-10 ($54.00) is a ...