Rockwell Automation 1203-CN1 ControlNet Communications Module 1203-CN1 - Manual (Page 120)

Publication 1203-5.13 – February, 2002
F-2 Supported Emulated Block Transfer Commands: Emulated Block Transfer Status Word
Emulated Block Transfer Status
Word When an operation is unsuccessful, header word 2 of the drive
response contains a negative value (bit 15 = 1).
If an error occurs, the drive also returns a status word to indicate the
reason for the failure. The location of the status word is typically
header word 3 in the drive response, but will depend on the message.
The following table lists the error codes.
Header 1
Example Message Structure and Error Message Reply
PLC Request
Header Word 0
Header Word 1
Header Word 2
Message Length
Drive Response
4
Header 2
Data Word 3 Data
Header 2.OR.0x8000
Header Word 0
Header Word 1
Header Word 2
Message Length
Header 2
Header Word 3 Error Code
Value Description
0 No error occurred.
1
The service failed due to an internal reason, and the drive could not
perform the request (some messages are read only or write only).
2 The requested service is not supported.
3 An invalid value in the block transfer emulation request header word 2.
4 An invalid value in the block transfer emulation request header word 3.
5 An invalid value in the block transfer emulation request header word 2.
6 The data value is out of range.
7
There is a drive state conflict. The drive is in an incorrect state to perform
the function. The drive cannot be running when you perform certain
functions.