NPDU and APDU sizes
A client recently asked us why the Device object Max_APDU_Length_Supported property has a value of 1476 for his Ethernet 8802-3 based device and where did that number come from? The standard mentions a maximum NPDU length of 1497. However when they read our code the value calculates out to 1496. What is the difference between APDU and NPDU […]