Siemens S5-100U User Manual page 23

Technical Description
Input/output modules
Input/output modules transfer information between the CPU and such process peripherals as
sensors, actuators, and transducers. You can use the following types of input/output modules
with your S5-100U:
• Digital input modules and digital output modules (4, 8, and 16/16 channel)
- Use these modules for simple control tasks involving signal states "0" and "1" only.
• Analog input modules and analog output modules
- Use these modules to record and generate such variable quantities as currents and
voltages.
• Timer module
- Use this module to set various times without having to change the program.
• Counter module
- Use this module to count pulses up to 500 Hz. You can input comparison values without
having to change the program.
• High-speed counter/position detection module
- Use the high-speed counter to record high-speed counter pulses of 25/500 kHz. You can
use this module for position detection in a positioning task.
• Comparator module
- This module makes it possible for you to monitor preset comparison values, such as for
current and voltage.
• Simulator module
- Use this module to generate digital input signals or to display digital output signals.
• Diagnostic module
- Use this module to check the function of the I/O bus.
• Communications module (CP)
- Use this module to output message texts with the date and clock time to a connected
printer. You can also use this module to connect to external systems.
• Intelligent I/O module (IP)
- Use these intelligent input/output modules for such special tasks as temperature control
and positioning tasks.
Bus units with terminal blocks (Crimp-snap-in or SIGUT, screw type)
Use bus units to connect the CPU to input/output modules. You can plug two input/output
modules into a single bus unit.
Interface modules (IM)
Use these modules to assemble your S5-100U in a multi-tier configuration.
Standard mounting rail
Mount your programmable controller on the standard mounting rail.
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S5-100U
EWA 4NEB 812 6120-02