Switching Commands - Bit Control; Table 30 Default Modbus Bit Command Registers; Table 31 Default Bit Map Control Commands Low Byte - ABB LVS Digital Manual

DATA MAPP IN G
Switching Commands
The bit control command gives the possibility to control a starter by setting of a single bit. (In
addition to control a starter by command codes as described in previous chapter.)
16 single command bits are in one Modbus word register. More than one bit can set at simul-
taneously. For example, it is possible to set a M10x to remote and to start it with one Modbus
register write command.
9.2.7.1. Function Codes
Depending from Modbus function code the commands are handled as described below.
Function 06: Commands
Function 16: Commands
The following tables detail the registers, bit functionalities and show examples of utilizing
Modbus bit commands.
Modbus
Function
Code
6/16
6/16
6/16
6/16
6/16

Table 30 Default Modbus Bit Command Registers

Following table shows how to control a starter by control command bits
Execution order is from highest (bit 15) to lowest bit (bit 0).
Bit 07 Bit 06
1 1
Trip
Reset

Table 31 Default Bit Map Control Commands Low Byte

1 TG C90 80 04
–
Bit Control
(bit =1) are always sent to M10x, regardless of any change to
the command bit value.
Are sent only when the command bit is toggled, (either 0 to 1
or 1 to 0)
Modbus- Device Number
Register
45001 1
45002 2
45003 3
: :
45128 128
Bit 05 Bit 04
1 1
CA to Open
Remote K1
Modbus Register
Name
Bit Commands
Bit Commands
Bit Commands
:
Bit Commands
Bit 03 Bit 02 Bit 01
1 1 1
Close Start
Stop
K1 CW
D EFAULT DATA MAP
Description/Re-
marks
Note: content of
the register indi-
cates up to 16 com-
mands
Bit 00 Register
45001
1 Device
Number
Start
Bit Function
CCW
61