AMCI SV160E2, User Manual, Page: 46 / 120

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ONFIGURATION
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ORMAT
SV160E2 User Manual
ADVANCED MICRO CONTROLS INC.
46
Command Mode Data Formats
When issuing commands to the SV160E2, there are several parameters that are larger than sixteen bits. These
parameters are:

Target Position

Programmed Speed

Stopping Distance

Minimum Registration Move Distance

Position Preset Value

Position Unwind Value (used in Circular Virtual Axis Moves)
Likewise, when reading data back from an SV160E2 while it is in Command Mode, there are values that are
larger than sixteen bits. These data values are:

Motion Profile Position

Motor Shaft (Encoder) Position

Captured Encoder Position
By default, these thirty-two bit parameters and data values are written to and read from the SV160E2 using
the 32-bit double integer format with little endian format. Little endian format is used by the EtherNet/IP pro-
tocol. A configuration parameter called Data Endian can be used to select big endian format. Big endian for-
mat is typically used by both Modbus TCP and PROFINET controllers, but you should refer to you PLC’s
documentation to verify the format used by your processor.
Examples of the formats are given below.
Table R5.1 Position Data Format Examples
32 bit Signed Integer
Little Endian Format
(EtherNet/IP)
32 bit Signed Integer
Big Endian Format
(PROFINET & Modbus TCP)
Value First Word Second Word First Word Second Word
12 16#000C 16#0000 16#0000 16#000C
-12 16#FFF4 16#FFFF 16#FFFF 16#FFF4
1,234,567 16#D687 16#0012 16#0012 16#D687
-7,654,321 16#344F 16#FF8B 16#FF8B 16#344F