Siemens 7SC80 Manual page 569

Device-Specific Limits
Description
Maximum number of synchronous
changes of chart inputs per task level
Maximum number of chart outputs per
task level
Additional Limits
Additional limits
Task Level
MW_BEARB
PLC1_BEARB
PLC_BEARB
SFS_BEARB
1) When the limit is exceeded, an error message is iisued by the device. Consequently, the device starts moni-
toring. The red ERROR-LED lights up.
2) The following condition applies for the maximum number of timers: (2 · number of TIMER + number of
TIMER_SHORT) < 30. TIMER and TIMER_SHORT hence share the available timer resources within the frame of
this inequation. The limit does not apply to the LONG_TIMER.
3) The time values for the blocks TIMER and TIMER_SHORT must not be selected shorter than the time resolu-
tion of the device of 10 ms, as then, the blocks will not then start with the starting pulse.
Maximum Number of TICKS on the Task Levels
Task level
MW_BEARB (measured value processing)
PLC1_BEARB (slow PLC processing)
PLC_BEARB (fast PLC processing)
SFS_BEARB (switchgear interlocking)
1) SFS_BEARB (switchgear interlocking)
Processing Times in TICKS for the Individual Elements
Individual element
Block, basic requirement
Each input more than 3 inputs for generic modules
Combination with input signal border
Combination with output signal border
Additionally for each chart
Arithmetic
Base logic
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Limit
165
150
1) for the following CFC blocks:
Maximum Number of Modules in the Task Levels
TIMER 2) 3)
—
15
—
ABS_VALUE
ADD
SUB
MUL
DIV
SQUARE_ROOT
AND
CONNECT
DYN_OR
NAND
Comment
When the limit is exceeded, an error message is output by
the device. Consequently, the device starts monitoring.
The red ERROR-LED lights up.
TIMER_SHORT 2) 3)
Limit in TICKS
10000
12000
10000
Technical Data
4.22 User-defined Functions (CFC)
—
30
—
1)
600
Number of Ticks
5
1
6
7
1
5
26
26
26
54
83
5
4
6
5
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