Lenze ETC Motion Control - Manual (Page 250)

Interface PLC <˘> NC operating system
Definitions
Data block 1
5
5.1
5.1.2
l
250 EDSTCXN EN 2.0
Data word Name Direction Type of signal
009.00−07 Program start PLC
→
NC static
The starting signal is a byte information which can adopt a value between 0
and 255.
The program start requirement is output if the start signal of the HMI to the
PLC (DW137) has a value unequal to "0" or a corresponding input of the PLC
has been set ("Press the start key") and the necessary starting conditions
have been met.
The value is set to "0" when the "NC program is running" signal is detected.
The information is divided in two half bytes (nibble). The nibble with the hig-
her value holds information on the type of program to be started; the one
with the lower value the mode, in which the start is to be executed. (for list
of meanings, see DW137).
)
Note!
The information is in general taken from the start signal of the
HMI. In special cases of application (direct start via PLC), the PLC
itself generates the information.
Effect in the NC: Value "1" of the signal triggers the defined program in the
corresponding mode.
If entries are to be made in a P field, they must be entered beforehand (see
DW137). The "NC program is running" signal of the corresponding channel
is set to "1".
Data word Name Direction Type of signal
009.08−11 Enable override PLC
→
NC static
Controls the effect of the override keys (PLC or HMI).
Effect in the NC: In the case of value "1", the overrides set by the PLC in data
block 1 and data word 80−83, or the MMI overrides set via the "virtual keybo-
ard", are considered.