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S7-400 CPU 41x -- Product information -- Background and system information
How many devices can you connect to an S7-300/S7-400 using the Modbus/TCP protocol?
When compiling a CFC chart, why is the error message "Time stamp conflict" displayed in connection with the Modbus/TCP FBs for S7-400 CPUs?
Which IO controllers and IO devices support the following functions in STEP 7 (TIA Portal): IRT, prioritized startup, MRP, MRPD, PROFIenergy, Shared device, MSI/MSO, I device, Isochronous mode, System redundancy and Option handling?
All-round protection with Industrial Security - System Integrity
What are the differences between OPEN MODBUS / TCP Redundant V1 and OPEN MODBUS / TCP Redundant V2?
What is the difference between "normal routing" and data record routing?
Which SIMATIC S7-300/S7-400 modules support the NTP time-of-day message and how do you activate this kind of time synchronization?
Which manufacturer ID, in other words OUI (Organizationally Unique Identifier), does SIEMENS AG use for the MAC addresses of network-compatible devices?
What should you watch out for when adding components or changing their parameters using CiR (Configuration in Run)?
Which IO controllers and IO devices support the following functions in STEP 7 V5.5: IRT, prioritized startup, MRP, MRPD, PROFIenergy, Shared device, I device, sochronous mode, System redundancy and Option handling?
Which types of connection/protocols do the S7-300/400 CPUs and the CPs support by default?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Behavior of the CPU after power off without back-up battery
I/O addressing with DP slaves
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
What is the difference between a restart (warm restart), cold restart and hot restart of a S7-400 CPU?
Which SIMATIC S7 modules support the "Direct Data Exchange" function (internode communication)?
What properties, advantages and special features does the S7 Basis Communication offer?
What properties, advantages and special features does the global data communication offer?
Which entries deal with consistent data in conjunction with distributed I/O?
What is the connection between subnet masks and IP addresses with regard to subnetting and supernetting (Classless Inter Domain Routing CIDR)?
Which modules support the S7 routing function?
CPU does not work in RUN
What does "Correction factor" mean in the "Diagnostics/Clock" tab of the CPU's Properties dialog?
What is multicomputing mode and what are the differences to operating in the segmented subrack?
Differing information on the requirement of offline/ online memory
How can I get an overview of the S7-400 memory concept?
PROFIBUS general -- Configuring and programming communication -- Using communication blocks
Transfer of analog values from and to the PROFIBUS DP slave
Which entries deal with consistent data in conjunction with distributed I/O?
How can you access consistent data without SFC14/15 as part of the process image?
Why does my new CPU 315-2DP (Order No: 6ES7 315-2AG10-0AB0) not process the SFC13 correctly?
How do you receive an alarm with the SFB 54 "RALRM" in compliance with DPV1?
DP slave lifelist using SFC51 "RDSYSST" instead of SFC12 "D_ACT_DP"
Can you use the "Signal System Error" function, the FB126 function block and the SFC13 "DPNRM_DG" system function simultaneously?
Notes for the use of the system function SFC12 "D_ACT_DP"
What is consistent data?
How do you read data consistently from a DP standard slave/PROFINET IO device and write it consistently to a DP standard slave/PROFINET IO device?
Disabling DP slaves after startup of the CPU
Diagnostics information of the FB125 with disabled DP slave
Enabling a disabled DP slave with SFC 12 "D_ACT_DP"
Parameter assignment of SFC 103 / SFC 59 required for identifying and reading out topology data
What are the requirements for using the "Prepare Line Diagnostics" function?
S7-300 CPU 31x -- Product information -- Background and system information
How many devices can you connect to an S7-300/S7-400 using the Modbus/TCP protocol?
Which IO controllers and IO devices support the following functions in STEP 7 (TIA Portal): IRT, prioritized startup, MRP, MRPD, PROFIenergy, Shared device, MSI/MSO, I device, Isochronous mode, System redundancy and Option handling?
What is the emergency address (emergency IP) of a CPU and when is this enabled or disabled?
All-round protection with Industrial Security - System Integrity
What are the differences between OPEN MODBUS / TCP Redundant V1 and OPEN MODBUS / TCP Redundant V2?
What is the difference between "normal routing" and data record routing?
Which SIMATIC S7-300/S7-400 modules support the NTP time-of-day message and how do you activate this kind of time synchronization?
Which manufacturer ID, in other words OUI (Organizationally Unique Identifier), does SIEMENS AG use for the MAC addresses of network-compatible devices?
What should you watch out for when using the alarm numbering procedure?
Which IO controllers and IO devices support the following functions in STEP 7 V5.5: IRT, prioritized startup, MRP, MRPD, PROFIenergy, Shared device, I device, sochronous mode, System redundancy and Option handling?
What is the maximum number of parameters that can be assigned to an FC and FB in the S7-300 CPU?
Which types of connection/protocols do the S7-300/400 CPUs and the CPs support by default?
Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) in the case of topological configuration and device replacement without topological configuration?
Which PROFINET nodes support the extended PN diagnostics and what do you have to configure?
Why is only a warm start available for S7-300?
Which SIMATIC S7 modules support the "Direct Data Exchange" function (internode communication)?
Which entries deal with consistent data in conjunction with distributed I/O?
What properties, advantages and special features does the S7 Basis Communication offer?
What properties, advantages and special features does the global data communication offer?
What is the connection between subnet masks and IP addresses with regard to subnetting and supernetting (Classless Inter Domain Routing CIDR)?
Which modules support the S7 routing function?
How can you obtain an overview of the memory concept of SIMATIC S7-300 CPUs and C7 devices?
Retentivity behavior of S7-300 CPU 31x and complete devices C7-6xx with MMC
Status of the run-time meter after overall reset
Why does the retentivity behavior of the S7-300 CPUs and C7 devices without MMC (Micro Memory Card) influence the contents of the variables?
Local data addressing with S7-300 / S7 400
S7 300 run-time meter doesn't give any value
PROFINET general -- Configuring and programming communication -- Using communication blocks
In the user program of an S7-300 or S7-400 CPU with integrated PN interface, how can you read out the current topology of the PROFINET IO system connected?
Which entries deal with consistent data in conjunction with distributed I/O?
Which entries deal with consistent data in conjunction with distributed I/O?
Part number:

Consistent data, overview and application in distributed I/O.
In the following is a description of how to deal with consistent data in STEP 7.

28991143_Consistent_Data_e.pdf ( 766 KB )  

The entries dealing with the topic of consistent data are listed below.
 

Topic

Entry ID

Definition of terms.

5116353
How do you read data consistently from a DP standard slave/PROFINET IO device and write it consistently to a DP standard slave/PROFINET IO device?

21848242

Consistent data in S7-400 11646774
How can you access consistent data without SFC14/15 as part of the process image? 8751062
How is consistent data of the distributed I/O processed in S7 masters? 245111
Rules for the CPU 315-2 DP accessing the distributed I/O 42413
CP 342-5 -- How can you read and write consistent data of a DP slave via the CP 342-5? 21627748
What should you watch out for when configuring consistent data in COM PROFIBUS with IM 308-C as DP slave? 22566679
What are the options for address assignment of consistent data in IM 308-C? 21459883

Keywords:
SFC 14, SFC 15, Consistency

 Entry ID:28991143   Date:2009-09-22 
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