Clock data, Plc block transfer instruction data, Message operation – Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual

Page 93: Real time clock data write

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4–51

Using Unscheduled Messaging

Publication 1336 FORCE–5.18 ––March, 1999

The Real Time Clock Data Write message is provided to allow the
drive to write the specified real-time clock data. This allows you to
write the new real-time clock seconds, minutes, and hours, as well as
the day, date, month, and year.

PLC Block Transfer Instruction Data

PLC Message Write instruction length:

7 words

PLC Message Read instruction length:

3 words

Header

Word 1

Header

Word 1

Header

Word 2

Header

Word 2

Header

Word 3

0

Message Structure

Message Length

7

Header

Word 3

0

PLC Decimal Value

2816

Clock Time

Seconds

100 ths of S

Clock Time

Hour

Minute

PLC Decimal Value

2816 –– Message OK

-29952 –– Message Error

Clock Time

Date

Day

Clock Time

Year

Month

Data

Word 4

Data

Word 5

Data

Word 6

Data

Word 7

0

PLC Request –– PLC Message Write

Drive Response –– PLC Message Read

Message Operation

The Real Time Clock Data Write function allows you to define the
clock data for the drive. The clock time is written in the order shown
in the header message. This information should be sent as ASCII
text.

The Time is based on a 24–hour clock.

Clock Data

Real Time Clock Data Write

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