Interface plc <˘> nc operating system – Lenze ETC Motion Control User Manual
Page 253

Interface PLC <˘> NC operating system
Definitions
Data block 1
5.1
5.1.2
l
253
EDSTCXN EN 2.0
Data word
Name
Direction
Type of signal
018.00
Q bit signal 0
PLC
→
NC
static
...
...
...
...
021.15
Q bit signal 63
PLC
→
NC
static
Application and program−specific signals for controlling the program flow in
the NC control. The meaning of the values must be defined individually. The
values depend on the inputs of the PLC and internal links.
Effect in the NC: The signals are stored unchanged in the internal "Q−Feld"
("Q field") as Q0 ... Q63. Individual entries of the Q field can be accessed in the
program to ensure that it is possible to control the program flow.
Fast inputs: If fast inputs are configured (see DW36.0 ... 37.15), the corres-
ponding Q bits are not read from the Q field but directly from the correspon-
ding inputs E0.0 ... E3.7. This makes it possible to react more quickly to an ex-
ternal event as it is not diverted via the integrated PLC.
Data word
Name
Direction
Type of signal
031.00 − 15
Enable MMI
PLC
→
NC
static
Up until now this data word is only used in connection with the standard
HMI. It is used to signal MMI which PLC functions are supported by the loa-
ded PLC (coded in bits).
Bit number
Meaning (PLC support)
0
Teaching
1
Block search
2
Interrupt
3
Version output
4
Key control
By setting bits 0 ... 2, a corresponding soft key is shown on the HMI. If bit 3 is
set, HMI requests a version string via the message interface in the DB2. If bit
4 is set, PLC is in control of the keys via the PLC keys provided in the ETC−MMI
(
¶ 268).
Effect in the NC: none