SICK ALIS - Bar Code;Rfid Tag Specification; System Ambient Data; System Redundancy

25
8027605/V1-0/2022-03| SICK S Y S T E M D E S C R I P T I O N | ALIS
Subject to change without notice
SYSTEMS DESCRIPTION 3
3.5.2 Bar Code/RFID tag Specification
Bar Code
● Bar code must be according to IATA Resolution 740, Attachment ‘B’ / chapter 2.
Large Sortation Bar Code Specification
● Symbology: interleaved 2 of 5
● Module width: 0,508mm / Tolerance: +/- 5%
● Bar height: min. 48mm
● Quiet zone: min. 7 times module width / preferred: 10 times module width
● Orientation: horizontal, vertical or orthogonal. Preferred: orthogonal
● Print contrast signal: not less then 80% at wavelength of 633nm
RFID tag
● The RFID tag must be compliant with the requirements of IATA RP 1740C
3.5.3 System Ambient Data
● Ambient operating temperature from 0° to 40°C / upon request 50° C possible
● Permissible relative humidity max. 90%, non-condensing
● Ambient light immunity 2000 lx on bar code
3.5.4 System Redundancy
In a redundant system two controllers MSC800 are running simultaneously. One MSC is
parameterized as "Primary controller" and the other one as "Secondary controller".
This assignment is static and will never change during operation. The controller can be in
the operation mode ACTIVE or STANDBY. In normal operation mode the primary controller is
in ACTIVE mode and the secondary controller is in STANDBY mode.
The assignment of the reading results to the object is done by the controller which receives
the data of the connected sensors. The reading data is then transferred inside a XML for-
mat to the remote controller via CAN2 connection.
This mirroring of the data is done from the ACTIVE to the STANDBY controller and vice versa.
To ensure that both controllers will output the identical reading data, all relevant settings
have to be identical. Redundant operation is only possible in tracking mode of the system.
The primary controller checks periodically the system state and compares it with the sec-
ondary system state. If the readiness of the primary controller is less than the secondary,
the primary controller will change to mode STANDBY and the secondary controller will
change to mode ACTIVE.