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CAN Clock
CAN-Clock
Item #:
C.2836.02
Availability: Normally Stocked
Usually ships In 2 Weeks
CAN-Clock
Timer for CAN-Bus
- Serial interface for DCF77- or
GPS (NMEA)-receiver
- Integrated real time clock
(RTC)
- One CAN interface
- Transmission of timestamp in
CANopen format
- Compact top-hat rail module
Linking Time Emitter with CAN-Bus
The module CAN-Clock can link an external DCF77-clock signal receiver or an external GPS-receiver with the CAN bus.
An additional internal real time clock (RTC) can take over the transmission of the timestamp if no external signal
is connected. The module operates with a MB90F543 microcontroller, which buffers the CAN data in a local SRAM.
CAN Interface
The time information is transmitted as time stamp to the CAN bus. The ISO 11898-compliant CAN interface allows a
maximum data-transfer rate of 1 Mbit/s. The CAN interface is electrically isolated by opto-couplers and DC/DC converters.
It is connected via a 5-pin screw/plug connector in Combicon style.
Design
Designed for hat-rail mounting, the CAN-Clock’s front panel contains the connectors and status LEDs.
Serial Interface
A serial interface links the CAN bus to an external DCF77- or GPS-receiver. And the physical layer of the serial interface
is realized as an RS-232 interface.
CAN Protocols
The CAN-Clock module works with the CANOpen Protocol according to CiA-DS401.
Technical Specification:
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CPU and serial
interface
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Microcontroller
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MB90F543, 16 MHz
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Memory
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6k x 8 bit SRAM, 128 k x 8 bit Flash EPROM
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Serial controller
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MB90F543-internal, 9600 kbit/s
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Physical interface
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RS-232
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Clock signal
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External - DCF77- or GPS-receiver, internal: additional
RTC
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CAN bus interface
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CAN controller
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MB90F543-internal, CAN 2.0A/B
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CAN interface
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Differential, electrically isolated, 1 Mbit/s, ISO 11898
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Protocol
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CANopen according to DS-401
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General
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Connectors
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CAN: 1x 5-pin connection socket
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Serial
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9-pin DSUB male, power: UEGM screw connector
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Operating voltage
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Nominal 24 V(DC)
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Order Information:
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Designation
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order no.
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CAN-Clock
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CAN-Clock module
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C.2836.02
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Manual
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CAN-Clock-ME
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English user’s manual
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C.2836.21
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CAN-Clock
Timer for CAN-Bus
- Serial interface for DCF77- or
GPS (NMEA)-receiver
- Integrated real time clock
(RTC)
- One CAN interface
- Transmission of timestamp in
CANopen format
- Compact top-hat rail module
The module CAN - Clock is a compact top-hat rail module with the connectors and status LEDs on the front panel.
The CAN - Clock operates with a MB90F543 microcontroller that buffers the CAN data in a local SRAM that links an
external DCF77-clock signal receiver or an external GPS-receiver with the CAN bus. An additional internal real time clock
(RTC) can take over the transmission of the timestamp if no external signal is connected.
esd electronics designed the CAN - Clock to be fully ISO 11898 compliant with the module’s time information transmitted
as timestamp to the CAN bus. The CAN interface allows a maximum data-transfer rate of 1 Mbit/s, is electrically isolated by
optocouplers and DC/DC converters, and is connected with a Combicon-style, 5-pin screw/plug connector.
Linking the CAN bus of the CAN - Clock to an external DCF77- or GPS-receiver is done through a serial interface with the
physical layer an RS-232 interface. esd electronics has designed this module to work with the CANopen Protocol
according to CiA-DS401.