How can you use SINAUT MICRO SC to synchronize the real-time clock of the S7-200 CPU?
1. Introduction The following entry describes how you can synchronize the system time of a remote station with the central station. A remote station, consisting of an S7-200 CPU and the SINAUT MD720-3 modem, is connected to a central station via GPRS (Fig. 01). SINAUT MICRO SC communicates with all configured remote stations on the central station. With time synchronization, you should consider that SINAUT MICRO SC always transfers the UTC time of the PC. There is no automatic conversion into the local time zone of the remote station. This entry provides a function block that performs the conversion into the remote station’s local time. There is also a description of how you must configure the remote station in order to execute real-time clock synchronization successfully. Fig. 01: Block diagram 2. Configuring SINAUT MICRO SC Proceed as follows to activate the real-time clock transfer.
