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The central plant clocks evaluate the clock time data that is transmitted from the wireless receiver and generate diverse output signals in order to synchronize the connected I/O devices.

If the wireless receiver fails or signal transmission is interrupted, the central plant clocks switch over to their internal high-precision quartz system and thus ensure reliable tracking of the clock time. When the input signal is available again, the central plant clock adjusts any time differences that may have occurred without time jumps by means of "microsteps".

SICLOCKВ TC100 and SICLOCKВ TC400 central plant clocks

Inputs and outputs

The high-precision SICLOCKВ TC100 and SICLOCKВ TC400 central plant clocks have one (SICLOCKВ TC100) or two (SICLOCKВ TC400) inputs for connection to wireless receivers.

The central plant clocks have one (SICLOCKВ TC100) or four (SICLOCKВ TC400) independent 10/100 Mbit Ethernet interfaces.

The network stations are synchronized using the proven SNTP standard and by means of the SIMATIC procedure.

The SICLOCK central plant clocks have two relay outputs for signaling alarms or warnings.

Alternatively and/or in addition, two TTY point-to-point connections (20В mA current interface) or one RSВ 422 (5В V level) connection can be set up for the SICLOCKВ TC400 central plant clock.

Operation

Parameterization of the interfaces, setting of the signal types, redundancy modes, and read-out of the status messages stored in the device are conveniently implemented via the integrated web interface.

LEDs and a display indicate operating states and show any error messages, which can also be read out via the web interface.

Note:

Java Runtime software V1.4.0 or higher from Oracle is required on the PC used for this if you want to use the optional comfort parameter assignment features. The software is not included in the scope of delivery, and must be purchased separately.