Service Life; Fig. 34 Unique Serial Number Of A Twinsafe Terminal - Beckhoff EL1918 Operation Manual

5.7

Service life

The TwinSAFE terminals are designed for a service life of 20 years.
Due to the high diagnostic coverage within the lifecycle no special proof tests are required.
The TwinSAFE terminals bear a date code, which is composed as follows:
Date code: CW YY SW HW
Legend:
CW: Calendar week of manufacture
YY: Year of manufacture
SW: Software version
HW: Hardware version
In addition the TwinSAFE terminals bear a unique serial number.
Fig. 34: Unique serial number of a TwinSAFE terminal
EL1918 and EL1918-2200
Sample: Date Code 17 11 05 00
Calendar week: 17
Year: 2011
Software version: 05
Hardware version: 00
00000000
17110500
Version: 2.0.0
Operation
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