Elseta IOMOD 16DI Руководство пользователя - Страница 6

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4/14/2017

IOMOD 16DI

Supported MODBUS functions

02 (0x02) Read Discrete Inputs

Reads status of digital inputs (Off or On). IOMOD 16DI has 16 digital inputs from address 0 to address

15; These inputs are active-high or active-low according to supply given to reference input. User can

turn on logical input inversion (through USB).

04 (0x04) Read Input Registers

Reads input count values – pulse count and ON time for each input. IOMOD 16DI has 16 digital inputs

from address 0 to address F; 3 registers are used per input to show count values – maximum number

of registers is 16 x 3 = 48. First register in group shows pulse count (16bit unsigned integer), 2

registers show total ON time of that input (32bit unsigned integer) in seconds.

06 (0x06) Preset Single Register

Sets single register. Register addresses is identical to "Read Input Registers" addresses.

Function

00000-0000F

00000-00030

To test IOMOD with default settings, user connects device through RS485 to Modbus master. Example

using "The Vinci Expert" device as serial interface converter and adapter to PC with "The Vinci" software.

Default settings for Modbus – 9600 baudrate; 8 data, no parity, 1 stop bit. When opening "The Vinci"

software, choose Modbus serial – Master mode. In settings tab, choose station number (default – 1);

configure tags (as described in section 2. Device working information); Press start and go to "Statistic"

tab:

V1.1 | ELSETA | MODBUS working information

Name

Read Discrete

Inputs

Read Input

Registers

Preset Single

Description

Returns Input

status

Returns input count

values

Sets count values

and 3

Values range

0-65535

(decimal)

0-65535 (16bit)