6−16 Electric Drives
and Controls
Bosch Rexroth AG RhoMotion 1070072367 / 04
SERCOS interface
Setting with AT:
The setting of the PLC start address remains unchanged.
The setting of the PLC final address results from:
PLC final address + 464 = 719
. In case of a switching with field bus (PCI_BM-DP, PCI_BM-IBS or
PCI_BM-CAN), an offset of 512 bytes must be set.
6.5.4 Transmission of the rho4.0 system counter
Additionally to the ATs, the internal rho4.0 system counter is supplied at
each transmission to the PCL. The counter is increased by the clock
start time set in the machine parameter P5 at each clock of the rho4.0.
The rho4.0 system counter occupies 4 bytes and has the value range
−2.147.483.648 to 2.147.483.647.
. The rho4.0 system counter is an allround-counter. When the upper
limit is exceeded, the rho4.0 system counter becomes negative,
e.g. after 2.147.483.647 follows − 2.147.483.643 at the clock start
time P5 = 6ms.
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