Function description, Module features, Functional inputs (g, l, s) – Pilz PSSu E S INC User Manual
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4-1
4.1
Module features
4
Function description
4
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Function description
Function description
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4.1
Module features
4100
Module features
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4.1.1
Function description
Function description
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][Funktionsbeschreibung Module Supply
Module supply
The module supply provides the module with voltage.
][Funktionsbeschreibung_Ein ST-INC BA Einleit
Inputs
3 dual-pole, differential inputs A, B, C for connecting an incremental
encoder or an encoder that provides rising edges as counter pulses.
3 single-pole inputs referenced to earth: G, L, S, for special functions
Operating modes
Incremental encoder
Counter
Functions
Period length measurement
or
Storing the counter status in latch memory after a latch pulse or zero
pulse
Setting the counter status
The module transfers the data and status information to the head mod-
ule via the module bus. The choice of function and the function's con-
figuration are defined via the system software.
4.1.1.1
Functional inputs (G, L, S)
Functional inputs (G, L, S)
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][Funktionsbeschreibung_Ein ST-INC BA GLS
The single-pole inputs (G, L, S) are used for special functions. Inputs G
and L may be connected to external signal sources, e.g. to a higher or-
der control system.
Input G (gate input)
The counter is stopped with a 1 signal. The module ignores the coun-
ter pulses at the inputs until a 0 signal returns.
Input L (input for latch pulse)
At a rising edge, the module stores the current counter value in the
latch memory. The counter continues counting; it is not stopped by
the latch pulse. The modul transmits the stored value to the head
module. The period length measurement may be configured as an al-
ternative to the latch function.
Input S (status input)
The encoder's fault signal output can be connected to the status in-
put. The module transmits the input status to the head module with
the status information.