Siemens SIPROTEC 7SJ61, Руководство пользователя, Страница: 358 / 454

Technical Data
4.19 User-defined Functions (CFC)
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
358
General Limits
Device-specific Limits
Additional Limits
1)
When the limit is exceeded, an error message is output by the device. Consequently, the device starts mon-
itoring. 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 res-
olution of the device, as the blocks will not then start with the starting pulse.
Maximum Number of TICKS in the Task Levels
1)
When the sum of TICKS of all blocks exceeds the limits before-mentioned, an error message is output by
CFC.
Description Limit Comments
Maximum number of all CFC charts
considering all task levels 32 When the limit is exceeded, the device rejects the parameter
set displaying an error message, restores the last valid pa-
rameter set and uses it for restarting.
Maximum number of all CFC charts
considering one task level 16 When the limit is exceeded, an error message is output by
the device. Consequently, the device is put into monitoring
mode. The red ERROR-LED lights up.
Maximum number of all CFC inputs
considering all charts 400 When the limit is exceeded, an error message is output by
the device. Consequently, the device starts monitoring. The
red ERROR-LED lights up.
Maximum number of reset-resistant
flipflops
D_FF_MEMO 350 When the limit is exceeded, an error message is output by
the device. Consequently, the device starts monitoring. The
red ERROR-LED lights up.
Description Limit Comments
Maximum number of synchronous
changes of chart inputs per task level 165 When the limit is exceeded, an error message is output by
the device. Consequently, the device starts monitoring. The
red ERROR-LED lights up.
Maximum number of chart outputs per
task level 150
Additional limits
1)
for the following CFC blocks:
Run-Time Level Maximum Number of Modules in the Task Levels
TIMER
2) 3)
TIMER_SHORT
2) 3)
MW_BEARB — —
PLC1_BEARB
15 30
PLC_BEARB
SFS_BEARB — —
Run-Time Level Limit in TICKS
1)
MW_BEARB (Measured Value Processing) 10000
PLC1_BEARB (Slow PLC processing) 4000
PLC_BEARB (Fast PLC Processing) 400
SFS_BEARB (Interlocking) 10000