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P a g e
Modbus Register Mapping
➢
Device Modbus Address(MOD _ID)
Address: 0x00 (40001)
Default value: 0x01FF
MOD_ID[15:8]
SP[7:0]
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rw
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rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
Bits 15:8
MOD_ID [15:8]:
Modbus address register bits
Default: 0x01
Maximum value: 0xF7
Minimum value: 0x01
Bits 7:0
SP [7:0]:
Save parameters
Default: 0x00
If slave id is 7 then by writing 07FF in this address will save parameters in eeprom and writing 0800 will load default value in drive.
➢
Control and Mode Register
Address: 0x02(40003)
Default value: 0x0000
MODE[15:8]
CRTL[7:0]
0
0
0
0
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0
0
0
0
DIR
0
BRK
EN
Bits 15:8
MODE [15:8]:
Mode byte
Default: 0x00
Bits [11:8]
0000
: Analog Open Loop Mode
0001
: Digital Closed Loop Mode
0010
: Digital Open Loop Mode
0011
: Analog Closed Loop Mode
Bits 7:0
CRTL [7:0]:
Control Byte
Default: 0x00
Bit 1
BRK
: Brake
0
: Disable Brake
1
: Enable Brake
Bit 3
DIR:
Direction (only Digital mode)
0
: Clockwise direction
1
: Counter-clockwise direction
Bit 0
EN
: Enable bit
0
: Disable mode
1
: Enable mode
Brake has more priority than enable.
➢
PWM Register(PWM)
Address: 0x04 (40005)
Default value: 0x0000
PWM[15:0]
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