2-194 ACH550 E-Clipse Bypass User’s Manual
Embedded fieldbus
MODBUS addressing – bypass
0xxxx Registers
MODBUS addressing of 0xxxx registers maps the profile control words shown in the
following table, to the first 32 coils when using the drive device ID. The Bypass
Control Word defined in the ABB Bypass Profile control word table is mapped to the
first 16 coils when using the bypass device ID. For both device IDs, the coil number
is the bit number plus 1. In other words, bits 0 – 31 are mapped to coils 1 – 32.
Relay output control is possible on the drive by using the drive device ID and
possible on the bypass by using the bypass device ID.
These registers are summarized in Error! Reference source not found..
Reminder: stop and enable related bits are valid at only one device subject to the
status of bypass parameter 16.25, COMM CTRL.
13...15 Reserved
MODBUS Registers (0xxxx)
MODBUS Ref. Bit
Bypass Device ID
BCU PROFILE
00001 0 START
00002 1 RESET
00003 2 RUN_DISABLE
00004 3 FBLOCAL_CTL
00005 4 START_DISABLE1
00006 5 START_DISABLE2
00007 6 START_DISABLE3
00008 7 START_DISABLE4
00009 8 OVERRIDE
00010 9 LINK_ON
00011 10 N/A
00012 11 N/A
00013 12 N/A
00014 13 N/A
00015 14 N/A
00016 15 N/A
00017 16 N/A
00018 17 N/A
00019 18 N/A
00020 19 N/A
00021...00032 20-31 N/A
BYPASS STATUS WORD
Bit NAME Value Description Comments
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