Setting the i/o configuration, Selecting cos, cyclic, or polled i/o, Selecting cos, cyclic, or polled i/o 3-8 – Rockwell Automation 22-COMM-D DeviceNet Adapter User Manual
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3-8
Configuring the Adapter
The I/O configuration determines the number of drives that will be
represented on the network as one node by the adapter. If the Mode
Jumper is set to the Single mode position, only one drive is represented
by the adapter and Parameter 15 - [DSI I/O Cfg] has no effect. If the
Mode Jumper is set to the Multi-Drive position, up to five drives can be
represented as one node by the adapter.
1. Set the value in Parameter 15 - [DSI I/O Cfg]:
Figure 3.7 I/O Configuration Screen on PowerFlex 4-Class HIM (22-HIM-*)
Drive 0 is the PowerFlex 40 with the 22-COMM-D adapter installed.
Drive 1 through 4 are PowerFlex 4 and/or 40 drives that multi-drop
to the RJ45 (RS-485) port on Drive 0. Refer to
for more information.
2. If a drive is enabled, configure the parameters in the drive to accept
the Logic Command and Reference from the adapter. For example,
set Parameters 36 - [Start Source] and 38 - [Speed Reference] in a
PowerFlex 40 drive to “DSI Port 5.”
3. Reset the adapter. Refer to
section in this chapter.
The data exchange (sometimes called allocation) is the method that the
adapter uses to exchange data on the DeviceNet network. The adapter
can be configured to use one of the following data exchanges:
If “Polled and COS” or “Polled and Cyclic” is used, the adapter receives
the I/O from the polled messages. It transmits its Logic Status and
Feedback in COS or Cyclic messages. Other data is transmitted in Polled
messages.
Setting the I/O Configuration
Value Description
Mode Jumper Position
Single Multi-Drive
0
Drive 0 (Default)
✓
✓
1
Drives 0-1
✓
2
Drives 0-2
✓
3
Drives 0-3
✓
4
Drives 0-4
✓
DSI I/O Cfg
Parameter:
#
015
Drive 0
0
VALUE
LIMITS
SEL
!
Selecting COS, Cyclic, or Polled I/O
• COS (Change of State)
• Polled and COS
• Cyclic
• Polled and Cyclic
• Polled