Rockwell-automation 1734-SSI POINT I/O Synchronous Serial Interface Ab Instrukcja Użytkownika Pobierz pdf (Strona 25)

Publication 1734-UM007D-EN-P - December 2005

Communicate with Your Module 3-3

Communicate Real-time

Information

The Synchronous Serial Interface Absolute Encoder module uses data

bytes composed into assemblies to communicate real-time input and

output data over an I/O connection, as well as non-real-time module

information by using an Explicit Messaging connection.

• Assembly 101 is produced data sent by the module over an I/O

or Explicit Messaging connection.

• Assembly 102 is consumed data that is received by the module

over an I/O or Explicit Messaging connection.

• Assembly 103 is configuration data that can be read or changed

over an Explicit Messaging connection.

The following table shows the 1734-SSI module data assemblies.

Instances Services Field Bytes

#101 (0x65) Get Present SSI Data 4

Stored SSI Data 4

Module Status 2

#102 (0x66) Set/Get Master Ack Byte 1

CONS1 1

Firmware

Version 3.001

Only

#103 (0x67) Set/Get Run 1

Gray/Binary 1

SSI Word Length 1

Data Rate 1

Gray to Binary Conversion 1

Standardization 1

SSI Word Delay Time 2

Trailing Bits 1

Latch Input Control 1

Sensor Resolution 2

Sensor Cycles 2

Alignment Byte (0x00) 2

Comparator 1 Value 4

Comparator 2 Value 4

Comp 1 Control 1

Comp 2 Control 1

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 52 53

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Rockwell-automation 1734-SSI POINT I/O Synchronous Serial Interface Ab Instrukcja Użytkownika Strona 25