Load Instructions
47
S7-400 Instruction List
A5E00267845-01
Load Instructions
Loading address identifiers into ACCU1. The contents of ACCU1 are first saved to ACCU2. The status word is not affected.
In-
Length
Execution Time in
s
In-
struc-
Address
Description
Length
in
Execution Time in
s
struc-
tion
Address
ID
Description
in
Words
CPU 412
CPU 414
CPU 416
CPU 417
L
IB
a
QB
a
PIB
a
Load ...
Input byte
Output byte
Peripheral input byte
2)
1
1)
/2
1
1)
/2
2
0.1/0.125
0.1/0.125
0.125
0.06/0.075
0.06/0.075
0.075
0.04/0.05
0.04/0.05
0.05
0.03/0.042
0.03/0.042
0.042
MB
a
LB
a
Bit memory byte
Local data byte
1
3)
/2
2
0.1/0.125
0.125
0.06/0.075
0.075
0.04/0.05
0.05
0.03/0.042
0.042
DBB
a
DIB
a
Data byte
Instance data byte
... into ACCU1
2
2
0.2
0.2
0.12
0.12
0.08
0.08
0.09
0.09
g [d]
g [AR1,m]
g [AR2,m]
B[AR1,m]
B[AR2,m]
Parameter
Memory-indirect, area-internal
4)
Register-indirect, area-internal (AR1)
4)
Register-indirect, area-internal (AR2)
4)
Area-crossing (AR1)
4)
Area-crossing (AR2)
4)
Via parameter
4)
2
2
2
2
2
2
0.1+/0.2+
0.125+/0.2+
0.125+/0.2+
0.125+/0.2+
0.125+/0.2+
0.125+/0.2+
0.06+/0.12+
0.075+/0.12+
0.075+/0.12+
0.075+/0.12+
0.075+/0.12+
0.075+/0.12+
0.04+/0.08+
0.05+/0.08+
0.05+/0.08+
0.05+/0.08+
0.05+/0.08+
0.05+/0.08+
0.03+/0.09+
0.42+/0.09+
0.42+/0.09+
0.42+/0.09+
0.42+/0.09+
0.42+/0.09+
+
Plus time required for loading the address of the instruction (see page 20)
1)
With indirect instruction addressing; Address area 0 to 127
2)
The following peripheral acknowledgement time must be observed with CPU 414-4H and CPU 417-4H: solo xx
s, redundant xx
s
3)
With direct instruction addressing; Address area 0 to 255
4)
I, Q, P, M, L / DB, DI