Owner manual

NOTE: Any branch/derivative cable is considered unterminated. Keep them short, below 250m

combined for maximum speed and reliability.

7.6 Register block overview

NMTC

Modbus RTU registers are grouped in the following register blocks:

Start

address

001

NMTC

configuration

R/W

Configuration of the NMTC

module.

021 NMTC status R

Status registers for the NMTC

module.

101 Pump control R/W Pump control registers.

201 Pump status R Status data from the pump.

301 Pump data R Measured data from the pump.

All addresses contain 16 bit (one Word) registers. Some are bit interpreted while others are

combined for a 32 bit value.

NOTE: All register addresses are 1-based. Address 001 is thus transmitted over bus as 0x0000.

7.7 NMTC Configuration register block

Registers in this block are read with either function codes 0x03 or 0x04. They can be written as

holding registers with function codes 0x06 and 0x10.

NOTE:

All values in this block are stored in nonvolatile memory immediately after write.

NOTE:

See section “4.3

Module mode selection

” an use Mode 8 or 9 to restore default settings if

you cannot access the controller after writing to these registers.