Rockwell Automation 1203-EN1 EtherNet/IP-to-SCANport Module - Manual (Page 148)

F-4 Supported Emulated Block Transfer Commands
Message Operation
Parameter Value Read reads parameter values from the drive and
places that value (or an error code) in word 3 of the drive response data
file. The value is shown in device units. Device units are listed in the user
manual for the device you are using.
If an error occurs:
• Word 3 of the response contains the status code.
• The status area of the data file is non-zero.
Example
In this example, the value of parameter 20 was requested from a 1336
PLUS drive and a value of 4096 was returned. 4096 is the internal drive
unit value for Maximum Rated Voltage Parameter. This corresponds to a
value of 100% Drive Rated Volts in Display Units.
Data File Format
* Example only — These values vary depending on parameters and products.
Parameter Value Write writes a 16-bit parameter data value to the
selected parameter number.
PLC Block Transfer Emulation Instruction Data
PLC request instruction length: 4 words
Drive response instruction length: 3 or 4 words
0 1 2 3 4 5 6 7 8 9
PLC request 3 769 20*
Drive response 4 769 20* 4096*
Parameter Value Write