Technical data

Input fields:
Input areas: Here, you assign the input bytes of the configured DP
slaves to the reserved input area of the CP.
The permitted range of values is from one byte (from
PYxxx to PYxxx, xxx = same address) to the I/O byte
limit specified in the I/O area editor for the I area (up to
a maximum of 242 bytes). If the DP slave does not
have an I area, these fields remain empty. Multiple
assignment for different DP slave stations is not
possible.
Output areas: Here, the output areas of the configured DP slaves are
assigned to the Q area of the CP.
The permitted range of values is from one byte (from
PYxxx to PYxxx, xxx = same address) to the I/O byte
limit specified in the I/O area editor for the Q area (up
to a maximum of 242 bytes). If the DP slave does not
have a Q area, these fields remain empty. Multiple
assignment for different DP slave stations is not
possible.
Watchdog
time:
The time specified here is the timeout value for all DP
slaves with activated watchdog monitoring ("DP slave
parameter assignment" screen).
The watchdog monitoring time, transferred to the DP
slave during the start-up phase in the parameter
assignment frame is used to monitor the DP master.
Each time a frame is received from the DP master, the
watchdog monitoring is restarted in the DP slave.
If the master fails, this is recognized by the DP slave
after the monitoring time elapses and the slave
changes to a safe state (for example, all outputs are
reset).
The time set here, is directly related to the token
rotation and the processing time of the DP polling list.
Distributed I/Os (DP) B89060/02
Volume 1 11 - 32