Prosoft-technology 3170-MBS Manual de usuario descargar pdf (Pagina 25)

3170-MBS ♦ Flex Platform Status Information

Modbus Slave Interface Module User Manual

ProSoft Technology, Inc. Page 25 of 55

October 27, 2010

5.2 Module Status Words

 Slot Status: indicates the general health of the installed I/O module

 Number of Words: either 3 or 15 words indeterminate if slot is empty.

 Number of Read Words: the number of words which are to be read from the

I/O module, indeterminate if slot is empty.

Address

Bit:

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 40122

Status Total

Words

Read

Words

Type

Identity

to 40129

 Type ID: a byte when combined with the Number of Words and Number of

Read Words form the Module ID which uniquely identifies a specific module

function, series and revision, indeterminate if slot is empty. Note that all of

bits 0 through 12 should be used in identifying a module.

Bit 15 1 = No answer, empty slot or dead module

Bit 14 1 = Either positive edge of bit 15 or bit 13 detected

Bit 13 1 = Bit failure, bad data on SerBus

Bit 12 1 = Number of words is 15, = 0 number of words is 3

Bits 11 to 8 Value = number of read words

Bits 7 to 0 Value = Type ID

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 54 55

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Prosoft-technology 3170-MBS Manual de usuario Pagina 25