Specifications

51
Operator Panel
Machine Control Panel
SIMATIC S7 PLC
Servo Motors
Servo Drive
Review 4
1. An example of a device that might be controlled by a
PLC discrete output is a ____________.
a. limit switch
b. relay
c. proximity switch
d. selector switch
2. The ________ modular system of industrial controls
incorporates components in each of the following
categories: switching, protecting, starting, monitoring
and controlling, detecting, commanding and signaling,
and supplying.
3. ______ power supplies are used to provide a regulated
DC voltage to power various control components.
4. ____________ is a Siemens trade name that includes a
range of computer numerical controls used to control
machine tools.