ReferenceReference
Programming Reference
B–19
Address DescriptionClassificationBit
S:15H DF1 Baud
Rate
Status This byte value contains a code used to select
the baud rate of the processor on the DF1 link.
The controller baud rate options are:
• 300
• 600
• 1200
• 2400
• 4800
• 9600 (default)
• 19200
• 38400
To change the baud rate from the default value
you must use a programming device.
S:16L DH-485
Node
Address
Status This byte value contains the node address of
your processor on the DH-485 link. Each device
on the DH-485 link must have a unique address
between the decimal values 1–31. To change a
processor node address, you must use a
programming device.
S:16H DH-485
Baud Rate
Status This byte value contains the baud rate of the
processor on the DH-485 link.
The controller baud rate options are:
• 9600
• 19200 (default)
To change the baud rate from the default value,
you must use a programming device.
S:17 to
S:21
Reserved NA NA
S:22 Maximum
Observed
Dynamic
Configuration
This word indicates the maximum observed
interval between consecutive program cycles.
Scan Time
This value indicates, in 10 ms increments, the
time elapsed in the longest program cycle of the
controller. Refer to S:3L for more information
regarding the program cycle. The controller
compares each last scan value to the value
contained in S:22. If the controller determines
that the last scan value is larger than the value
stored at S:22, the last scan value is written to
S:22.
Resolution of the maximum observed scan time
value is +0 to −10 ms. For example, the value 9
indicates that 80–90 ms was observed as the
longest program cycle.
Interrogate this value if you need to determine or
verify the longest scan time of your program.
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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