Rockwell Automation 1336-GM6 Enhanced DeviceNet Communications Module - Manual (Page 94)

B-6 Enhanced DeviceNet Adapter’s Parameters
2. Set the M-S Input (24) parameter. Refer to the “M-S Input
Parameter Configurations” section in this chapter.
3. Set the M-S Output (25) parameter. Refer to the “M-S Output
Parameter Configurations” section in this chapter.
4. Ensure the Cmd/Stat Config (4) parameter is set to On.
5. Ensure the lowest bit in M-S Output (25) parameter is set to 1.
6. Reset the adapter by setting the Reset Adapter (22) parameter to
Enable.
7. When you configure the scanner, set up polled I/O. Refer to
“Setting Up the Scan List” in Chapter 5.
Important: After you have configured the scanner and adapter for
Cyclic, you can verify the desired send rate is used by viewing the
COS/CYC Interval (28) parameter in the adapter.
Polled and COS Allocation
You can enable both polling and COS allocations. This lets the
scanner poll the adapter at a fixed interval and the adapter report its
status changes to the scanner after they occur.
Refer to both the “Polled Allocation” and the “COS (Change of State)
Allocation” sections in this chapter for information.
Polled and Cyclic Allocation
You can enable both polling and cyclic allocations. This allows the
scanner to poll the adapter at fixed intervals and the adapter to send its
status to the scanner at fixed intervals.
Refer to both the “Polled Allocation” section and the “Cyclic
Allocation” section in this chapter for information.
Using Peer-to-Peer
Communications To have your adapter receive data from or transmit data to another
1203-GU6 or 1336-GM6 on the DeviceNet network, you must
configure it for peer-to-peer communications. Peer-to-peer
communications are best used in the following instances:
• A PLC sends data to a drive. That drive re-transmits the data to
other drives on the network.
• A drive is configured on a network. It sends data to other drives
on the network.
Important: After setting up peer-to-peer communications, you must
make sure the configuration that you set up works as you intend it to
work.
To enable peer-to-peer communications, you must enable one adapter
to transmit peer I/O and one or more adapters to receive peer I/O.