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Load Instructions - Siemens CPU 412-1 Instruction Manual

S7-400; cpu 412 series; cpu 414 series; cpu 416 series; cpu 417 series;.
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Load Instructions

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

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