Rockwell Automation 5730 DriveLogix5730 Controller for PowerFlex 700S Drives with Phase II Control - Manual (Page 101)

Communicating with Devices on a Serial Link 5-9
Configuring a DF1 Master Station
This field: Description:
Station address The station address for the serial port on the DF1 master.
Enter a valid DF1 address (0-254). Address 255 is reserved for broadcast messages. The default is 0.
Transmit retries Specifies the number of times a message is retried after the first attempt before being declared undeliverable.
Enter a value 0-127. The default is 3.
ACK timeout Specifies the amount of time you want the controller to wait for an acknowledgment to its message transmission.
Enter a value 0-32767. Limits are defined in 20ms intervals. The default is 50 (1000ms).
Reply message wait Message-based polling mode only
Specifies the amount of time the master station waits after receiving an ACK to a master-initiated message before
polling the slave station for a reply.
Enter a value 0-65535. Limits are defined in 20ms intervals. The default is 5 (100ms).
Polling mode Select one of these:
• Message Based (slave cannot initiate messages)
• Message Based (slave can initiate messages) - default
• Standard (multiple message transfer per node scan)
• Standard (single message transfer per node scan)
Master transmit Standard polling modes only
Select when the master station sends messages:
• between station polls (default)
• in polling sequence
Normal poll node tag Standard polling modes only
An integer tag array that contains the station addresses of the slave stations.
Create a single-dimension array of data type INT that is large enough to hold all the normal station addresses. The
minimum size is three elements.
This tag must be controller-scoped. The format is:
list[0] contains total number of stations to poll
list[1] contains address of station currently being polled
list[2] contains address of first slave station to poll
list[3] contains address of second slave station to poll
list[n] contains address of last slave station to poll
Normal poll group size Standard polling modes only
The number of stations the master station polls after polling all the stations in the priority poll array. Enter 0 (default) to
poll the entire array.
Priority poll node tag Standard polling modes only
An integer tag array that contains the station addresses of the slave stations you need to poll more frequently.
Create a single-dimension array of data type INT that is large enough to hold all the priority station addresses. The
minimum size is three elements.
This tag must be controller-scoped. The format is:
list[0] contains total number of stations to be polled
list[1] contains address of station currently being polled
list[2] contains address of first slave station to poll
list[3] contains address of second slave station to poll
list[n] contains address of last slave station to poll
Active station tag Standard polling modes only
An array that stores a flag for each of the active stations on the DF1 link.
Both the normal poll array and the priority poll array can have active and inactive stations. A station becomes inactive
when it does not respond to the master’s poll.
Create a single-dimension array of data type SINT that has 32 elements (256 bits). This tag must be controller-scoped.
Error detection Select BCC or CRC error detection.
Configure both stations to use the same type of error checking.
BCC: the controller sends and accepts messages that end with a BCC byte for error checking. BCC is quicker and
easier to implement in a computer driver. This is the default.
CRC: the controller sends and accepts messages with a 2-byte CRC for error checking. CRC is a more complete
method.
Enable duplicate
detection Select whether or not the controller should detect duplicate messages. The default is duplicate detection enabled.