OR OR - Gate X X X X
REAL_TO_DINT Real after DoubleInt, adapter X X X X
REAL_TO_UINT Real after U-Int, adapter X X X X
RISE_DETECT Rising edge detector X X X X
RS_FF RS- Flipflop – X X X
RS_FF_MEMO Status memory for restart X X X X
SI_GET_STATUS Information status single point indi-
cation, decoder
X X X X
SI_SET_STATUS Single point indication with status,
encoder
X X X X
SQUARE_ROOT Root Extractor X X X X
SR_FF SR- Flipflop – X X X
SR_FF_MEMO Status memory for restart X X X X
ST_AND AND gate with status X X X X
ST_NOT Negator with status X X X X
ST_OR OR gate with status X X X X
SUB Substraction X X X X
TIMER Timer – X X –
TIMER_SHORT Simple timer – X X –
UINT_TO_REAL U-Int to real, adapter X X X X
UPPER_SETPOINT Upper Limit X – – –
X_OR XOR - Gate X X X X
ZERO_POINT Zero Supression X – – –
General Limits
Description
Limit Comments
Maximum number of all CFC charts considering all
task levels
32 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 all CFC charts considering one
task level
16 Only Error Message
(evolving fault in processing procedure)
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 inputs of one chart for each task
level (number of unequal information items of the left
border per task level)
400 Only fault annunciation; here the number of elements
of the left border per task level is counted. Since the
same information is indicated at the border several
times, only unequal information is to be counted.
Maximum number of reset-resistant flipflops
D_FF_MEMO, RS_FF_MEMO, SR_FF_MEMO
350 When the limit is exceeded, a fault indication is
output by the device. Consequently, the device is put
into monitoring mode. The red ERROR-LED lights up.
Device-specific Limits
Description
Limit Comments
Maximum number of simultaneous changes of the
chart inputs per task level
50 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 chart outputs per task level 150
Technical Data
4.17 User-defined Functions (CFC)
290 SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018