Ws 403 Functionalities; Mcu, Rtc And External Memory; Can Interface; Mobile Connection - Danfoss WS 403 Technical Information

Technical Information
WS 403 Remote Solution

WS 403 functionalities

MCU, RTC and external memory

CAN Interface

Mobile connection

16 | © Danfoss | March 2016
The device has a 32 bit microcontroller ARM Cortex M4.
•
can be clocked up to 168MHz
•
extensive peripheral 1MB NOR flash as code memory
•
192KB SRAM for data storage and a real-time clock, which is buffered by a super capacitor (backup
time> 48h @ 25 °C ).
•
Synchronization: GNSS/DTS portal Accuracy: +2.5 s/day
in addition, the unit is equipped with various external memories:
•
SRAM, 512KB volatile memory, connection via 16-bit data bus access time <= 45ns, optionally
buffered super capacitor (backup time> 48h @ 25 °C)
•
Serial FRAM, 16KB of non-volatile, cyclic writable memory for storing variables (e.g. operating hours
counter), 10 ^ 12 write cycles
•
Serial NOR Flash, 32 MB of non-volatile memory for storing configurations and place of logging data,
10 ^ 5 write cycles.
The dimensioning the memory size allows sufficient reserves to implement additional firmware features
at a later date.
WS503/WS503-BP features two CAN interfaces. Communication through various CAN protocols such as
CANopen, J1939, is possible.
The CAN interface meets the specification CAN 2.0 A/B protocol and the physical layer according to ISO
11898-2 high-speed up to 1 Mbit/s.
Support for CAN-FD is not available.
The CAN interface is operational only when power supply is energized.
The WS unit is equipped with an HSPA/UMTS/GSM/GPRS/EDGE module. It is used instead of the previous
dual-band UMTS. Integrated into the device is a SIM card slot and the network operator SIM card. The SIM
card remains internally in the housing. Inserting the SIM card is only possible by unscrewing the housing.
Furthermore, an embedded SIM is provided which can be used on a Sim card switching. It can only ever
be either posted at the same time the replaceable SIM card or embedded SIM in the mobile network.
Switching between two SIM card requires a restart the whole device.
The functionality depending on the ambient temperature can be assured for the maximum transfer rate
in the HSPA standard only between -38 °C to 55 °C.
For the frequency band cover a GSM quad-band and UMTS band six-module is used, which covers all
GSM frequency bands and the main UMTS frequency bands worldwide.
Supported frequency bands
- GSM/GPRS/EDGE
- UMTS/HSPA
Supported transmission rates
Supported transmission rates
GPRS
850 / 900 / 1800 / 1900 MHz
800 / 850 / 900 / 1700 / 1900 / 2100 MHz
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L1426375 | BC00000241en-US0203