Fb 199 Fifo First In First Out (Milling Version) - Siemens SINUMERIK 840 Planning Manual

01.91
5.19 FB 199 FIFO
First in first out (milling version)
for SINUMERIK 880/880 GA2 and package 2 only
Description
With the "FIFO" FB, data that are acquired in quick succession can be stored in a data buffer.
Afterwards, these data can be read as required. A maximum of 255 data lines can be stored
by means of this block. The DBs for the buffer entries are generated.
DBSP
Write/read
DW 0
pointer
EW1/QW1
DW 1
:
:
:
DW n
EW1/QW1
Block data
Lib. No.
FBs to be loaded
DBs to be loaded
Type of FB call
DBs to be input
Error messages
Block call FB 199
$I, W
$I, W
$I, W
$I, BY
$I, BY
I, BI
I, BI
I, BI
F 2.1
Signal descriptions
EW 1... Input channels
EW 3 The input channels contain the errors that are to be buffered (three words in parallel).
© Siemens AG 1991 All Rights Reserved
SINUMERIK 840/880 (PJ)
DBSP+1
Number of entries/
status word
EW2/QW2
:
:
:
EW2/QW2
: E88530-B-5599-A
: FB 199
: None
: Unconditional
: None
: None
FB FIFO
EW 1 VOLL
EW 2 LEER
EW 3 AW 1
ANEI AW 2
DBSP AW 3
EINL
AUSL
LOES
GST
6FC5 197-0AA40-1BP1
5.19 FB 199 First in first out (milling version)
DBSP+2
EW3/QW3
:
:
:
EW3/QW3
Q, BI
Q, BI
Q, W
Q, W
Q, W
5 Configuring
5–83