Siemens SIPROTEC 7SJ62 Instruction Manual page 127

Table 5-5 Selection Guide for Function Modules and Task Levels
Function Modules
ABSVALUE Magnitude calculation
AND AND-Gate
BOOL_TO_CO Boolean to control (conversion)
BOOL_TO_DI Boolean to Double Point
BUILD_DI Create Double Point annunciat.
CMD_INF Test
CONNECT Connection
D_FF D-Flipflop
DI_TO_BOOL Double Point to Boolean
LIVE_ZERO Live-zero, non linear Curve
LOWER_SETPOINT Lower limit
NAND NAND-Gate
NEG Negator
NOR NOR-Gate
OR OR-Gate
7SJ62 Manual
C53000-G1140-C121-1
Within the Run Sequence menu, select (GLW, and then 3UHGHFHVVRU IRU ,Q
VWDOODWLRQ, to ensure that the function modules selected from the library will be im-
plemented into the desired task level (Figure 5-32).
Figure 5-32 Assignment of Function Modules to the Selected Task Level
The proper assignment is important for several reasons. For example, if interlocking
logic were to be set up in the measured values (Meter processing) run-time sequence
level, indications would constantly be created by the cyclical processing, filling the
buffer unnecessarily. On the other hand, the interlocking condition at the moment of a
control operation may not be processed at the right time, since meter processing is
done only every 600 ms.
Description
Task Level
MW_BEARB PLC1_BEARB
Meter processing Slow PLC
X –
– X
– X
– X
– X
– –
– X
– X
– X
X –
X –
– X
– X
– X
– X
Configuration
PLC_BEARB SFS_BEARB
Fast PLC Interlocking
– –
X X
X –
X X
X X
– X
X X
X X
X X
– –
– –
X X
X X
X X
X X
5-33