Topic
CPU 313C from Siemens
CPU 313-5BF23 from VIPA
Technological functions:
Process interrupt
Comparison value
Parameterization
is activated if "Hardware interrupt on
reaching comparator" is set in hard-
ware configuration
is activated if "Hardware interrupt on
reaching comparator" is set and a
comparison function is activated at
"Characteristics of the output"
STS_OFLW / STS_UFLW
is set, if end value is reached respec-
tively range over- or underflow
is only set at range over respectively
underflow
HW gate
(STS_STRT / SFB 47)
status indication always takes place
status indication only takes place if
activated in hardware configuration
STS_CMP (SFB 47)
is activated if "Hardware interrupt on
reaching comparator" is set in hard-
ware configuration
is activated if "Hardware interrupt on
reaching comparator" is set and a
comparison function is activated at
"Characteristics of the output"
PIQ activation
onboard outputs are set immediately,
external outputs are set to zero before
onboard and external outputs are set
immediately
SFB 47 latch value
latch value is initialized
current latch value is displayed
Pulse duration reaching a comparison
value
set pulse duration is nearly kept
set pulse duration is extended by
approximately 2%
Interruptible OB 121/122
synchronous error OBs are not mutual
interruptible
synchronous error OBs are mutual
interruptible
Number of connections PG, OP, S7-
basic communication
max. 8
max. 32
Memory expansion
no
expandable by MCC
Splitting user memory
code/data
overall user memory for code and data
blocks
50% of work memory may be used for
code and 50% for data blocks
Ethernet onboard
no
yes (4 OP/PG connections)
K-Bus
yes
no
PtP
no
yes (by VIPA SFCs)
AWL (MC7) Code
execution time
normal
up to 20 times faster
Process interrupt reaction times
digital I/O
normal
approximately 3 times faster
Breakpoints
2
3
250μs/500μs watchdog interrupt
no
yes
μs timer
no
yes (via VIPA-SFCs)
De-normalized floating-point number
no
yes (like Siemens CPU 318-2DP)
400er/318er operation set
incl. Accu3/Accu4
no
yes
Number counter/timer
256
512
Without MMC/MCC runable
no
yes
Max. block size (FCs, DBs)
16kbyte
64kbyte
VIPA System 300S
+
Basics
Basic differences to the Siemens CPU 313C
HB140 | CPU-SC | 313-5BF23 | en | 19-01
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