Siemens SINUMERIK 840D sl Commissioning Manual page 417

08/2005
If this interface is specified, the text length limitation
Textlength = 33
must also be activated.
• The name of the PLC alarm text file (e.g., "alpu_") must be entered by the user
in the MBDDE.INI file in the [TextFiles] section under "UserPLC":
[TextFiles]
UserPLC=alpu_
User DB interface to PLC
Two lines in the header can be used for the display:
• Program path line
• Program name line
The user DB interface provides
• A start data byte (job detection by HMI), and
• Secondary bytes, with which
- a number,
- an axis index, and
- a text (length 12 characters/special characters)
can be output.
If "00" is written to a byte during text input, the HMI interprets this as the end of
text. Inputs after this "00" entry are not displayed.
Table 2-5 User DB interface to PLC for displays for program path/program name
Program Start DBBx
path line
Data type Byte
Meaning Bit 0=1: there is
something to
do
All bytes=1: job is
acknowledged by
HMI
All bytes=0: PLC
can write to
interface again
Program Start DBBx
name line
+20
Data type Byte
Meaning As above
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Installation and Start-Up HMI (IAM) - 08/2005 Edition
Start DBWx Start DBBx
+ 1 + 3
Word Byte
Offset for text Number
from from 0 to
alpu_xx.com to 255
be displayed, (correspond
700000 is base s to
address and is
1st
always summed
parameter
internally
%1)
=0: Delete line
Start DBWx Start DBBx
+21 +23
Word Byte
As above As above
Commissioning HMI Advanced (IM4)
2 Setting Functions and Parameters
Start DBBx Start
+ 4 DBBx + 5-
17
Byte String
Index from Character
–127 to 128 string
max. 12
negative number
characters
(-1=0xFF, -2=0xFE) is
machine axis index, (correspon
positive number is
ds to
channel axis index
3rd
The index is then
parameter
converted to an
%3)
axis name before
being displayed.
(corresponds to
2. parameter %2)
Start DBBx Start
+24 DBBx
+25-37
Byte String
As above As above
IM4/2-23