User`s manual
22
Modbus Protocol Technical Data
The ACH550 supports the following Modbus function codes for coils:
1xxxx Mapping – Modbus Discrete Inputs. The drive maps the following
information to the 1xxxx Modbus set called Modbus Discrete Inputs:
• Bit-wise map of the STATUS WORD (selected using parameter 5305 EFB CTRL
PROFILE). The first 32 inputs are reserved for this purpose.
• Discrete hardware inputs, numbered sequentially beginning with input 33.
The following table summarizes the 1xxxx reference set:
Function Code Description
01 Read coil status
05 Force single coil
15 (0x0F Hex) Force multiple coils
Modbus
Ref.
Internal Location
(All Profiles)
ABB DRV
(5305 = 0 or 2)
DCU PROFILE
(5305 = 1)
10001
STATUS WORD – Bit 0 RDY_ON READY
10002
STATUS WORD – Bit 1 RDY_RUN ENABLED
10003
STATUS WORD – Bit 2 RDY_REF STARTED
10004
STATUS WORD – Bit 3 TRIPPED RUNNING
10005
STATUS WORD – Bit 4 OFF_2_STA* ZERO_SPEED
10006
STATUS WORD – Bit 5 OFF_3_STA* ACCELERATE
10007
STATUS WORD – Bit 6 SWC_ON_INHIB DECELERATE
10008
STATUS WORD – Bit 7 ALARM AT_SETPOINT
10009
STATUS WORD – Bit 8 AT_SETPOINT LIMIT
10010
STATUS WORD – Bit 9 REMOTE SUPERVISION
10011
STATUS WORD – Bit 10 ABOVE_LIMIT REV_REF
10012
STATUS WORD – Bit 11 EXT2 REV_ACT
10013 STATUS WORD – Bit 12 RUN_ENABLE PANEL_LOCAL
10014
STATUS WORD – Bit 13 N/A FIELDBUS_LOCAL
10015
STATUS WORD – Bit 14 N/A EXT2_ACT
10016
STATUS WORD – Bit 15 N/A FAULT
10017
STATUS WORD – Bit 16 Reserved ALARM
10018
STATUS WORD – Bit 17 Reserved REQ_MAINT
10019
STATUS WORD – Bit 18 Reserved DIRLOCK
10020
STATUS WORD – Bit 19 Reserved LOCALLOCK
10021
STATUS WORD – Bit 20 Reserved CTL_MODE
10022
STATUS WORD – Bit 21 Reserved Reserved
10023
STATUS WORD – Bit 22 Reserved Reserved
10024
STATUS WORD – Bit 23 Reserved Reserved
10025
STATUS WORD – Bit 24 Reserved Reserved
10026
STATUS WORD – Bit 25 Reserved Reserved
10027
STATUS WORD – Bit 26 Reserved REQ_CTL