Address Identifier and Parameter Ranges
6
S7-400 Instruction List
A5E00267845-01
Address Identifier and Parameter Ranges
Addr.
Parameter Range
Description
ID
CPU 412
CPU 414
CPU 416
CPU 417
Description
Q
**
0.0 to 127.7
0.0 to 255.7
0.0 to 511.7
0.0 to 1023.7
Output (in PIQ)
QB
**
0 to 127
0 to 255
0 to 511
0 to 1023
Output byte (in PIQ)
QW
**
0 to 126
0 to 254
0 to 510
0 to 1022
Output word (in PIQ)
QD
**
0 to 124
0 to 252
0 to 508
0 to 1020
Output double word (in PIQ)
DBX
0.0 to 65533.7*
0.0 to 65533.7
0.0 to 65533.7
0.0 to 65533.7
Data bit in data block
DB
1 to 511
1 to 4095
1 to 4095
1 to 8191
Data block
DBB
0 to 65533*
0 to 65533
0 to 65533
0 to 65533
Data byte in DB
DBW
0 to 65532*
0 to 65532
0 to 65532
0 to 65532
Data word in DB
DBD
0 to 65530*
0 to 65530
0 to 65530
0 to 65530
Data double word in DB
DIX
0.0 to 65533.7*
0.0 to 65533.7
0.0 to 65533.7
0.0 to 65533.7
Data bit in instance DB
DI
1 to 511
1 to 4095
1 to 4095
1 to 8191
Instance data block
DIB
0 to 65533*
0 to 65533
0 to 65533
0 to 65533
Data byte in instance DB
DIW
0 to 65532*
0 to 65532
0 to 65532
0 to 65532
Data word in instance DB
DID
0 to 65530*
0 to 65530
0 to 65530
0 to 65530
Data double word instance DB
*
Also restricted by the size of the working memory.
**
Default setting can be changed, see Technical Specifications