Node adjustment, Plc block transfer instruction data, Message operation – Rockwell Automation 1336T Function Block Prog. Manual, Series A/B User Manual

Page 152: Write block link

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5–36

Block Transfer Services

1336 FORCE — 5.9 August 1995

The Write Block Link message writes the link information for an
entire block.

PLC Block Transfer Instruction Data

BTW Instruction Length:

36 Words

BTR Instruction Length:

4 Words

0

Header

Word 1

Header

Word 1

8F06

80ID

PLC Decimal Value

0F06 –– Message OK

Parameter Number

8F06 –– Message Error

Message Structure

Header

Word 2

Data

Word 3

Header

Word 2

Header

Word 3

0

PLC Request –– Block Transfer Write

Drive Response –– Block Transfer Read

Packet Number 0

Data

Word 4

Node 0 Source

Node 0 File Number

Data

Word 5

Data

Word 6

Node 15 Source

Data

Word 35

•••

Node 1 Source

Node 1 File Number

Data

Word 7

Data

Word 8

Node 15 File Number

Data

Word 36

ID = block ID number

Hex

Hex

80ID

Status Word

Header

Word 4

Message Operation

The Write Block Link message writes the output parameter to the
input parameter. The data words contain the packet number and up
to 15 source nodes. The buffer must always be padded with zeros if
32 nodes are not being written.

If the service encounters any invalid output references, the drive
stops processing the service and returns an error.

Node Adjustment:

Write Block Link

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