Adjustable Frequency Drive Address (Adr); Data Control Byte (Bcc) - Danfoss VLT FC 102 Series Design Manual

Installation and Set-up
8.4.4 Adjustable Frequency Drive Address
(ADR)
Two different address formats are used.
The address range of the adjustable frequency drive is
either 1-31 or 1-126.
1. Address format 1-31:
Bit 7 = 0 (address format 1-31 active)
Bit 6 is not used
Bit 5 = 1: Broadcast, address bits (0-4) are not
used
Bit 5 = 0: No Broadcast
Bit 0-4 = adjustable frequency drive address 1-31
2. Address format 1-126:
Bit 7 = 1 (address format 1-126 active)
Bit 0-6 = adjustable frequency drive address
1-126
Bit 0-6 = 0 Broadcast
The follower returns the address byte unchanged to the
master in the response message.

8.4.5 Data Control Byte (BCC)

The checksum is calculated as an XOR-function. Before the
first byte in the message is received, the calculated
checksum is 0.
MG11BC22
Design Guide
Danfoss A/S © Rev. 06/2014 All rights reserved.
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