Calculating the MAC address from the serial number
Deutschmann Automation GmbH & Co. KG
13 Calculating the MAC address from the serial number
Basically you can see the MAC-address from the IC's status signal (see chapter 7.2 'The
configuration mode').
With the following calculation formula you can calculate the MAC-address from the serial number
(SN), that is attached to the IC:
MAC = (SN - 28950000) + 86184558592
Since the MAC is issued as a 6-digit hex-number, anyways (xx-xx-xx-xx-xx-xx), the following cal-
culation is probably better:
Issue: MAC1-MAC2-MAC3-MAC4-MAC5-MAC6
Calculation:
MAC1 = 00
MAC2 = 14
MAC3 = 11
MAC4 = (SN - 28950000) / 65536
MAC5 = ((SN - 28950000) / 256) mod 256
MAC6 = (SN - 28950000) mod 256
Consequently the device with the SN 32180349 has the MAC 00-14-11-31-4A-8D
®
36
Instruction manual UNIGATE
IC - EtherNet/IP 2Port V. 1.8
8.2.16
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