Lenze RS-485 module - Manual (Page 7)

5
ENGLISH
Parameter Setting
4 Parameter setting
4.1 Register Memory
4.1.1 Read Only or Input Registers
The following read only ModBus registers (drive variables) accessible only through the ModBus
function
• 03 (0x03) Read Holding Registers
4.1.2 Read/Write or Holding Registers
The following read/write ModBus registers (drive variables) accessible only through the ModBus
functions
• 04 (0x04) Read Input Registers
• 06 (0x06) Write Single Register
• 16 (0x10) Write Multiple Registers
For all ModBus registers that are denoted in description field as ‘W: EPROM & memory’ exist another
register with address+200 (203 for CurrentLimit, for example) to write only runtime memory location
of that variable, without affecting EEPROM value. Read command returns the same result for both
addresses.
Parameter changes in EEPROM and memory using first set of addresses are permanent, however
parameter changes in memory only using second set of addresses are valid only for one session.
Session ends by powering the drive down.
Remember, when changing double word or float parameters, the change is applied to the drive only
after second word is written.
ModBus Register
16 bit address
Type Controller Variable Description
1 16 bit word DriveMode See Drive 94 manual
W: EPROM & memory.
2 16 bit word PwmIndex See Drive 94 manual
W: EPROM & memory.
3 32 bit float CurrentLimit See Drive 94 manual
W: EPROM & memory.
Low word starts first
5 32 bit float PeakCurrentLimit See Drive 94 manual
W: EPROM & memory.
Low word starts first
7 32 bit float LowPeakCurrentLimit See Drive 94 manual
W: EPROM & memory.
Low word starts first
9 16 bit word InvertAnalogInput See Drive 94 manual
W: EPROM & memory.
10 32 bit float CurrentAnalogInput See Drive 94 manual
W: EPROM & memory.
Low word starts first