Lumel ND10 User Manual

Also see for ND10 TYPE: User manual User Manual & Quick Start

Lumel ND10 User Manual Manual pdf 32 page image

328. RS-485 INTeRfACeOverview of the ND10 serial port parameters.• identifier 0xCB• meter address 1..247• transmission speed 4.8, 9.6, 19.2, 38.4 kbit/s,• operation mode Modbus RTu,• transmission mode 8N2, 8e1, 8O1, 8N1,• max. response time 750 ms.• max. no. of registers readin a single query- 40 4-byte registers,- 80 2-byte registers,• implemented functions - 03, 04, 06,16, 17,- 03, 04 register read,- 06 1st register write,- 16 register write,- 17 device identification.Manufacturer’s settings: address 1, speed 9.6 kbit/s, mode RTu 8N2.ND10 meter register mapND10 meter has data contained in 16-bit and 32-bitregisters. Process variables and meter parameters are placedin the address area of registers in a way depended on thevariable value type. Bits in 16-bit registers are numbered fromthe youngest to the oldest (b0-b15). 32-bit registers include num-bers of float type in IEEE-754 standard. Sequence of 3210 bytes– the oldest is transmitted as the first.