178 SI-Ethernet User Guide
Issue: 3
Where “Mod 100” refers to the fractional value of the result from MM.002/10000, (the value after the
decimal point).
e.g. For a value of 12345678 in Pr MM.002 (12.34.56.78 on the keypad display), the major revision
is 12 and the minor revision is 34.
The returned data will consist of 2 unsigned bytes, the first byte will be the major revision value 12
(0x0C) and the second byte will be the minor revision value 34 (0x22).
Major revision
Minor revision
Serial Number
Returns the lower 4 bytes (32 bits) of the Ethernet interface serial number.
The Ethernet interface serial number is contained within two adjacent parameters, Pr MM.004
Serial Number LS displays the least 8 significant decimal digits and Pr MM.005 Serial Number MS
displays the most 8 significant decimal digits.
For example, if the serial number of the onboard Ethernet interface is 123456789 then Pr MM.005
Serial Number MS will display 1 and Pr MM.004 Serial Number LS will display 23456789.
The Ethernet interface serial number is set during manufacture and cannot be changed.
Table 7-24 Revision specification
b7 b6 b5 b4 b3 b2 b1 b0
Major revision (MM.002 / 1000000)
R Minor revision (MM.002 / 10000) Mod 100
b7 b6 b5 b4 b3 b2 b1 b0
0 0 0 0 1 1 0 0
Major revision = 12 (0x0C)
b7 b6 b5 b4 b3 b2 b1 b0
R 0 1 0 0 0 1 0
Minor revision = 34 (0x22)
Name: SerialNumber
Class 0x01 Default N/A
Instance 0x01 Data Type UDINT
Attribute 0x06 Access Get
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