Siemens SINUMERIK 802C Manual page 62

Start-Up
4.3 Starting up the PLC
Table 4-11 Instruction set
Instruction
Load normal open
And n=1 close
Or n=0 open
Load Not normal close
And Not n=0 close
Or Not n=1 open
Output prior 0, n=0
prior 1, n=1
Set prior 0, not set
(1 Bit)
prior 1 or ½
Reset prior 0, no reset
(1 Bit)
prior 1 or ½
Instruction
prior ½ close
Edge Up
(1 PLC cycle)
prior ¿ close
Edge Down
(1 PLC cycle)
Logical Not prior 0, later 1
prior 1, later 0
No operation
Instruction
Load Byte = a = b close
a b open
And Byte =
Or Byte =
Load Byte . a ≥ b close
And Byte . a t b open
Or Byte .
Load Byte 3 a ≤ b close
And Byte 3 a u b open
Or Byte 3
4-62
BASIC BOOLEAN INSTRUCTIONS
Ladder Symbol
n
n
n
Bit
S
Bit
R
OTHER BOOLEAN INSTRUCTIONS
Ladder Symbol
P
N
NOT
n
NOP
BYTE COMPARES (Unsigned)
Ladder Symbol
a
==B
b
a
> =B
b
a
< =B
b
Valid Operands
n: V, I, Q, M, SM, T, C, L
n: V, I, Q, M, SM, T, C, L
n: V, I, Q, M,T, C, L
S_Bit: V, I, Q, M, T, C, L
n =1
S_Bit: V, I, Q, M, T, C, L
n=1
Valid Operands
n = 0 ... 255
Valid Operands
a: VB, IB, QB, MB, SMB, AC, Constant,
LB
b: VB, IB, QB, MB, SMB, AC, Constant,
LB LB
6FC5 597–3AA20–0BP2 (01.02)
SINUMERIK 802C