Siemens SIMATIC S7-400 Reference Manual page 147

Index
A
Address area, CPU 31x-2, 1-35
B
Block stack, 2-4
BUSF, 1-41, 1-51
C
Calculation, reaction time, 3-13
CiR, 1-30
Cold restart, 1-16
operating sequence, 1-17
Communications via MPI and via
communication bus, cycle load, 3-4
Configuration frame. see on the Internet at
http://www.ad.siemens.de/simatic-cs
Consistent data, 1-68
Access to the working memory, 1-69
Communication block, 1-69
Communication function, 1-69
DP standard slave, 1-69
Process image, 1-71
SFC 14 "DPRD_DAT", 1-69
SFC 15 "DPWR_DAT", 1-70
SFC 81 "UBLKMOV", 1-68
CPU, mode selector, 1-14
CPU 315-2 DP
see CPU 31x-2
DP master, 1-36
CPU 316-2 DP. see CPU 31x-2
CPU 318-2. see CPU 31x-2
Automation System S7-400 CPU Specifications
A5E00165965-01
CPU 31x-2
bus interruption, 1-45, 1-55, 1-66
diagnostic addresses for PROFIBUS, 1-44,
1-54
Direct communication, 1-64
DP address areas, 1-35
DP master
diagnosis with STEP 7, 1-42
diagnostics using LEDs, 1-41
DP slave, 1-46
diagnostics using LEDs, 1-51
diagnostics with STEP 7, 1-51
intermediate memory, 1-47
operating mode changes, 1-45, 1-55, 1-66
CPU parameters, , 1-24
Cross–communication. see Direct
communication
Cycle load, communications via MPI and
communication bus, 3-4
Cycle Time, increasing, 3-4
Cycle time, 3-2
calculation example, 3-19
calculation examples, 3-18
parts, 3-3
D
Data transfer, direct, 1-64
Diagnosis
module, CPU 315-2 DP as DP slave, 1-60
station, CPU 31x-2 as slave, 1-61
Diagnostic addresses, CPU 31x-2, 1-44, 1-54
Diagnostic interrupt, CPU 31x-2 as DP slave,
1-62
Index-1