Conventions for S7-200 Instructions
8-8
S7-200 Programmable Controller System Manual
A5E00066097-02
Table 8-3 S7-200 CPU Operand Ranges
Access Method CPU 221 CPU 222 CPU 224, CPU 226
Bit access (byte.bit) V 0.0 to 2047.7
I 0.0 to 15.7
Q 0.0 to 15.7
M 0.0 to 31.7
SM 0.0 to 179.7
S 0.0 to 31.7
T 0 to 255
C 0 to 255
L 0.0 to 63.7
V 0.0 to 2047.7
I 0.0 to 15.7
Q 0.0 to 15.7
M 0.0 to 31.7
SM 0.0 to 179.7
S 0.0 to 31.7
T 0 to 255
C 0 to 255
L 0.0 to 63.7
V 0.0 to 5119.7
I 0.0 to 15.7
Q 0.0 to 15.7
M 0.0 to 31.7
SM 0.0 to 179.7
S 0.0 to 31.7
T 0 to 255
C 0 to 255
L 0.0 to 63.7
Byte access VB 0 to 2047
IB 0 to 15
QB 0 to 15
MB 0 to 31
SMB 0 to 179
SB 0 to 31
LB 0 to 63
AC 0 to 3
Constant
VB 0 to 2047
IB 0 to 15
QB 0 to 15
MB 0 to 31
SMB 0 to 179
SB 0 to 31
LB 0 to 63
AC 0 to 3
Constant
VB 0 to 5119
IB 0 to 15
QB 0 to 15
MB 0 to 31
SMB 0 to 179
SB 0 to 31
LB 0 to 63
AC 0 to 3
Constant
Word access VW 0 to 2046
IW 0 to 14
QW 0 to 14
MW 0 to 30
SMW 0 to 178
SW 0 to 30
T 0 to 255
C 0 to 255
LW 0 to 62
AC 0 to 3
Constant
VW 0 to 2046
IW 0 to 14
QW 0 to 14
MW 0 to 30
SMW 0 to 178
SW 0 to 30
T 0 to 255
C 0 to 255
LW 0 to 62
AC 0 to 3
AIW 0 to 30
AQW 0 to 30
Constant
VW 0 to 5118
IW 0 to14
QW 0 to 14
MW 0 to 30
SMW 0 to 178
SW 0 to 30
T 0 to 255
C 0 to 255
LW 0 to 62
AC 0 to 3
AIW 0 to 62
AQW 0 to 62
Constant
Double word access VD 0 to 2044
ID 0 to 12
QD 0 to 12
MD 0 to 28
SMD 0 to 176
SD 0 to 28
LD 0 to 60
AC 0 to 3
HC 0, 3, 4, 5
Constant
VD 0 to 2044
ID 0 to 12
QD 0 to 12
MD 0 to 28
SMD 0 to 176
SD 0 to 28
LD 0 to 60
AC 0 to 3
HC 0, 3, 4, 5
Constant
VD 0 to 5116
ID 0 to 12
QD 0 to 12
MD 0 to 28
SMD 0 to 176
SD 0 to 28
LD 0 to 60
AC 0 to 3
HC 0 to 5
Constant
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