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Siemens Industry Online Support
Siemens AG
Entry ID: 86535497, Entry date: 08/05/2016
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Time synchronization - Time synchronization in the automation environment

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In this entry you will find the most important entries on the 'Time Synchronization' topic in Industry Online Support.

Time synchronization with the SIMATIC procedure



The SIMATIC procedure for time synchronization is a proprietary protocol which the SIMATIC components use to synchronize their times with each other.

FAQ

How do you configure the SIMATIC S7-300 as time master or time slave for time-of-day synchronization via Industrial Ethernet in SIMATIC mode?
How do you configure the SIMATIC S7-400 as time master or time slave for time-of-day synchronization via Industrial Ethernet in SIMATIC mode?
How do you configure a PC station as time master or time slave for time-of-day synchronization via Industrial Ethernet in SIMATIC mode?
How do you synchronize time-of-day with PROFIBUS in the SIMATIC environment?
Time synchronization in the SIMATIC environment via MPI-Subnets
How can you synchronize CPU clocks with each other?
How can you set the time of an S7-300/400 controller from WinCC when SIMATIC powerrate and a "Named Connection" are being used?
What do you do if the time synchronization in the PLC doesn't function as time slave?
Why does the message "Time jump noticed - switched to permanent slave mode" appear?
Time synchronization of a CPU with other modules / DP stations (SFC48)
Why can't you use the IEEE Standard 1588 for synchronizing SIMATIC controllers?

Manual

STEP 7 Professional V13.1

Time synchronization with the NTP process

The NTP (Network Time Protocol) process is a standard for reliable time specification in networks.

Application Examples

Clock synchronization between a HMI operator panel and a SIMATIC PLC
Time-of-Day Synchronization between WinCC Runtime Professional and an S7 Controller
Library for SNTP Server Functionality in SIMATIC S7 CPUs (LSNTP)
Secure Remote Access to SIMATIC Stations via Internet and UMTS
 Monitoring and Control with the LOGO! CMR Module

FAQ

Which SIMATIC S7-300/S7-400 modules support the NTP time-of-day message and how do you activate this kind of time synchronization?
How do you configure your PC as NTP server?
How do you configure time synchronization using the NTP procedure (without SICLOCK) for small PCS 7 plants?
How do you configure time synchronization in Windows domains?
Why does the time interrupt start too late in SIMATIC PCS 7 during summer time?

Manual

STEP 7 Professional V13.1

Time synchronization for SINAUT ST7 systems

In SINAUT ST7 systems you can use DCF77 radio receivers or NTP servers for time synchronization.

FAQ

How do you configure time synchronization in a SINAUT network?
What should you watch out for when setting the time of day on the TIM modules with an integrated DCF77 radio clock receiver?
What remedy is available if the time of day on an ST7cc PC or ST7sc PC is not automatically set by the TIM with DCF77 receiver which is connected to the MPI bus?

Manual

SIMATIC NET Industrial Remote Communication - TeleControl SINAUT ST7 software
SIMATIC NET: Industrial Remote Communication Telecontrol TIM DNP3

Time synchronization in the user program

Individual solutions for time synchronization through a user program.

Application Examples

Data Synchronization with S7 Communication between several S7-1200 Substations and one S7-1500/300 Head PLC
SIMOTION, SIMATIC: Communication Library LCom for Ethernet Communication
MICROMASTER: Parameter reading&writing of a MM4 using S7-300/400 (STEP 7 V5) with PROFIBUS Parameter (realtime clock)
Ethernet Communication: Data Exchange S7-1200 <-> S7-200 (CE-X20)
SINAMICS S: Time synchronization between S7-300/400/1200/1500 and S120

FAQ

How do you synchronize the time of the SINAMICS S120 with the time of the T-CPU?
How do you use WinCC flexible to synchronize the data and time between a SIMATIC HMI panel and a SIMOTION controller?
How do you synchronize the date and time between an operator panel and an S7-300/S7-400 controller with WinCC flexible?
How can you set the time of an S7 controller from WinCC?
GPS receiver (2XV9450-1AR13) for WinCC
Which STEP 7 standard blocks are available for time stamping and time-of-day synchronization?
How can you calculate the actual local time (summer time or winter time) in the S7-300/400 CPU and then use it on the panel as system time?
How can you read out the date and time with SFC1 (READ_CLK) and set them with SFC0 (SET_CLK)?
How do you convert an available seconds value into days, hours, minutes and seconds?
Tips and tricks for reading and comparing date, time and counters

Further Information

STEP 7 Professional V13.1
STEP 7 Professional V13.1


Time synchronization with HMI operator panels/ PCS 7 systems


Below are entries concerning time synchronization with HMI devices and in PCS 7 systems.

Application Examples

FAQ

Configuring the time synchronization for WinCC clients (WinCC Version <>
How does time synchronization work between S5 and a Windows-based operator panel?
How is time synchronization configured with the DCF77 Time Receiver?
2XV9450 SICLOCK: Synchronization a SIMATIC S7 with DCF77 or GPS?
DCF 77 receiver for WinCC
Why is the time not set by the software tool DCF77 Client?
How do you synchronize date/time between a TP170A / TP170micro / TP177micro and an S7-200 CPU with WinCC flexible?
How do you synchronize the date and time between a TP170A and the S7-300/S7-400 controller with WinCC flexible?
Why are messages displayed in WinCC offset by one hour (plus 1 hour)?
Why do messages coming from the PCS 7 PLC have a time stamp that is, for example, 2 hours ahead of time although the PCS 7 OS and the PLC are set to the same time?
Which settings need to be taken into consideration during time synchronization?
How do you set date and time via the Windows box?
What settings must you make in Windows 7 in order to change the system time of the PC via WinCC flexible Runtime/WinCC Runtime Advanced?

Manual

SIMATIC Process Control System PCS 7 Time synchronization (V8.1)

Products for time synchronization



SICLOCK


General Notes



Here, among other topics, you will find further information about the topic clock synchronization.