Technical Description S5-115F Manual
Input and Output Modules (I/Os)
• Digital input modules adapt digital signals, e.g. from pressure switches or BERO®
proximity switches, to the internal signal level of the S5-115F.
• Digital output modules convert the internal signal level of the S5-115F into digital
process signals, e.g. for relays or solenoid valves.
• Analog input modules convert analog process signals, e.g. from transducers or resistance
thermometers, to the S5-115F, which functions digitally.
• Analog output modules convert internal digital values of the S5-115F to analog process
signals, e.g. for speed controllers.
Interface Module (IM)
The S5-115F is installed on one or more mounting racks with a specific number of mounting
locations (slots). An installation with power supply, CPU, and input/output modules is called
a central controller. If the slots on the central controller's mounting rack are insufficient,
you can install expansion units (systems without CPUs) on additional mounting racks.
Interface modules connect an expansion unit to a central controller.
Mounting Rack (CR, ER)
A mounting rack consists of an aluminum mounting rail to which all the modules are
fastened mechanically. It has one or two backplanes that connect the modules to each other
electrically.
TTY Interface
Connect a programmer or an operator panel at the TTY interface. You can also set up a
SINEC L1 interface here.
Memory Submodule
Battery Compartment
Parallel link
The parallel interface is used to synchronize data exchange between the two subunits.
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EWA 4NEB 811 6148-02
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