Lenze ETC Motion Control - Manual (Page 258)

Interface PLC <˘> NC operating system
Definitions
Data block 1
5
5.1
5.1.2
l
258 EDSTCXN EN 2.0
This is precisely when the target point is accepted. (Note: Also a change from
110 to –110 or vice versa has the effect that the target position is accepted
again.) The axis moves for as long as the value +/−110 is specified in the tra-
verse key and the target has not yet been reached. A change to the speed spe-
cification (P208 ... 223) is also accepted when the axis is in motion. When the
target point is reached, the NC sends the "PLC axis reached target" signal in
the DB1.
Travelling generally takes place via the "modal offset", i.e. parallel to any
programmed NC target position. When the target position specification is
accepted from the P field, a distinction is made between two scenarios de-
pending on the configuration of the traverse key:
1. G122 X0 (default configuration)
The modal target position results from the difference between target posi-
tion specification of the PLC and actual NC actual position. The specification
therefore takes effect in relation to the current coordinate system.
2. G122 X1
The modal target position results directly from the target position specifica-
tion of the PLC. The specification therefore takes effect in relation to the cur-
rent NC actual position.
Verfahrtaste 110 0 100 110 0 0
SPS-Achse am Ziel
ETCN059
Data word Name Direction Type of signal
128.00 NC−Betriebsbereit_1 NC
→
PLC static
Value "1" indicates that the NC control is ready for operation in all operating
modes. The "0" signal appears when the NC control changes to an error state
which can be remedied and which interrupts the program flow (the "NC pro-
gram is running" signal remains on "1").
The signal changes from "0" to "1" after the cause of the errors has been re-
medied (error acknowledged by operator).
Effect in the PLC: not defined
Data word Name Direction Type of signal
128.01 NC−Betriebsbereit_2 NC
→
PLC static
Value "1" indicates that the NC control is ready for operation in all operating
modes. The "0" signal appears when the control changes to an error state
which cannot be remedied and which cancels the program flow or is in
"emergency stop" state. The signal changes from "0" to "1", after the cause
of the error has been remedied (error acknowledged by operator) and/or the
control is not in the "emergency stop" state.
Effect in the PLC: not defined
Example Change to emergency stop state, controller enable is withdrawn