Block transfer status word – Rockwell Automation 1336T Function Block Prog. Manual, Series A/B User Manual

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5–2

Block Transfer Services

1336 FORCE — 5.9 August 1995

If a block transfer operation is not successful, header word 2 of the
drive response contains a negative value (that is, bit 15 is set to 1
when an operation fails). The drive also usually returns a Status
Word to indicate the reason for the block transfer failure. The
location of the status word varies depending on the message, but it is
typically header word 4 in the drive response.

The status word codes that the drive may return are as follows:

Value

Description

0

No error has occurred.

1

The service failed due to an internal reason, and the drive could not
perform the request. This may be returned if you tried to write with a
read only request or read with a write only request.

2

The requested service is not supported.

3

An invalid value is in block transfer request header word 2.

4

An invalid value is in block transfer request header word 3.

5

An invalid value is in block transfer request header word 2.

6

The data value is out of range.

7

Drive state conflict. The drive is in an incorrect state to perform the function.
The drive cannot be running when you perform certain functions.

Message Data Representation Base

Most services in this chapter use decimal (Base 10) representation,
although certain services are more readily understood by using a
hexadecimal (Base 16) representation. When working with
execution list events and manipulating nodes, hexadecimal
representation is used. The download and compile, read event, node
value, and link services are also explained using hexadecimal
representation.

Block Transfer Status
Word

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