Siemens CPU 948 Programming Manual page 104

Basic Operations
Comparison operations
Table 3-8 Comparison operations
Operation Operand
! =
>< F
> D
> = G
<
<=
Block operations
Table 3-9 Block operations
Operation Operand
J U
J C
OB 1 to 39
OB 121 to 255
PB 0 to 255
FB 0 to 255
SB 0 to 255
D O U
D O C
FX 0 to 255
B E
B E C
B E U
C DB 2 to 255
C X DX 3 to 255
G DB 2 to 255
GX DX 3 to 255
1)
only for test purposes!
3 - 32
Function
– Compare for equal to
Compare for not equal to
Compare for greater than
Compare for greater than or equal to
Compare for less than
Compare for less than or equal to
...F:
...D:
...G:
Function
Jump unconditionally
Jump conditionally (only when RLO = 1)
1)
to an organization block
to a system program special function
to a program block
to an FB function block
to a sequence block
Jump unconditionally
Jump conditionally (only when RLO = 1)
to an FX function block
– Block end
Block end, conditional (only when RLO = 1)
Block end, unconditional
Call a DB data block
Call a DX data block
Generate data block DB
Generate data block DX
(ACCU 1 must contain the number of data words
– maximum 4091 – that the new block is to have )
compare two fixed point numbers (16 bits)
compare two fixed point numbers (32 bits)
compare two floating point numbers (32 bits)
CPU 948 Programming Guide
C79000-G8576-C848-04