Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx User Manual

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Configuring the I/O

20-COMM-D DeviceNet Adapter User Manual

f. For the Input Size and Output Size boxes, use the pull-down menus

to choose the number of bytes that are required for your I/O.

The size will depend on the drive’s Reference/Feedback and the
number of Datalinks used in your I/O (enabled with adapter
Parameter 13 - [DPI I/O Cfg]), and the selected data exchange
method. (A 16-bit word is two bytes, and a 32-bit word is four
bytes.) For this example, an Input Size of ‘20’ and an Output Size
of ‘20’ are used.

Important:Make sure that the bits for Parameters 25 - [M-S

Input] and 26 - [M-S Output] are set to match
Parameter 13 - [DPI I/O Cfg]. See

Setting a

Master-Slave Hierarchy (Scanner-to-Drive
Communication) on page 3-5

for details.

Table 4.E

Table 4.F

, or

Table 4.G

list the number of bytes required

for the Input Size and Output Size boxes for specific I/O
configurations—and only the Polled data exchange method. For
Input Sizes and Output Sizes for other data exchange methods and
specific I/O configurations, see the tables in

Appendix E

Table 4.E Drives with 16-bit Reference/Feedback and 16-bit Datalinks

These products include the following:

Table 4.F Drives with 16-bit Reference/Feedback and 32-bit Datalinks

These products include the following:

• PowerFlex 70 drives with standard or enhanced control

• SMC Flex smart motor controllers

• PowerFlex 700 drives with standard control

• SMC-50 smart motor controllers

• PowerFlex 700H drives

Logic

Command/

Status

Ref/Fdbk

(16-bit)

Datalinks (16-bit) User Configured Settings

Size in Bytes

Par. 13 -

[DPI I/O Cfg]

Par. 25 -

[M-S Input]

Par. 26 -

[M-S Output]

Input Output

✔

…0 0001

✔

…0 0011

✔

…0 0111

✔

…0 1111

✔

…1 1111

• PowerFlex 700 drives with vector control

• PowerFlex Digital DC drives

• PowerFlex 700L drives with 700 control