WABCO TEBS E, Руководство пользователя

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6
TEBS E GIO functions
58
6 GIO functions
This chapter describes functions that can be created using the GIO ports of the
TEBS E Modulator and other components. Normally, a TEBS E modulator (Pre-
mium) is required for these functions, see chapter 4.2 ‘Overview of functions’,
page
19
..
Introduction to GIO
GIO means Generic Input/Output and designates programmable inputs and out-
puts.
The Standard variant of the Trailer EBS E Modulator has 4 GIO slots, the Premium
variant has 7 GIO slots.
It is possible to use the GIO functions to activate various additional functions in the
trailer modulator.
More GIO slots are made available via the ELEX electronic expansion
module , see chapter 7.1 ‘Electronic expansion module (ELEX)’,
page
126
, to enable additional components to be connected.
The standard functions are allocated (preset) with the TEBS E Diagnostic Software.
Many are multi-use functions (e.g. integrated lifting axle control, speed switch ISS,
steady positive voltage).
The parameter settings can be used to assign different functions to the GIO slots.
Parameter definitions can also be used for choosing whether cable breaks should
be monitored on outputs for safety reasons. If a load is connected to a GIO output
with no parameterised function, a fault is detected.
All GIO slots have at least one switching output (power stage) and one ground con-
tact. The other two pins are assigned differently. The implication is that not all func-
tions can be utilised on all slots to the same extent, see chapter 12.2 ‘Pin assign-
ment TEBS E Modulators and ELEX’, page
195
. The maximum charge for all GIO
switching outputs is 1.5 A.
GIO functions are available if the system is supplied with sufficient voltage and is
fault-free.
GIO power stage
The GIO power stage can be used to switch electrical charges (e.g. solenoid
valves, lights).
The GIO power stages can also be used as inputs. Whether a switch has an open
circuit or is switched to ground can be sensed this way. If the switch is switched to
positive, a fault is detected when the switch is closed.
GIO analogue input
The GIO analogue input can be used to read in analogue signals (e.g. from the
pressure sensor) or to detect signals from buttons.
GIO height sensor input
ECAS height sensors can be connected to the GIO height sensor inputs for internal
level control or, in the case of mechanical-suspension vehicles, for sensing the
compression rebound as a means of determining the axle load.