Introduction
1.4 Hardware configuration
Library SENTRON 3WL / 3VL for SIMATIC PCS 7
Function Manual, 11/2008, A5E02316914A-01
11
If 3WL / 3VL is connected following a Y-link DPV0 or DPV1, 3WL / 3VL must be configured
in the HW config. as a DPV0 slave. All acyclic services and interrupts are deactivated. This
means that the device no longer outputs diagnostic interrupts and data records can no
longer be read from the device. For details of the effect that this has on the response of the
blocks, refer to Section 3 Description of the blocks (Page 17).
Figure 1-5
Properties of the 3WL / 3VL device following a Y link
The start addresses of inputs and outputs must be located in the partial process image that
is assigned to the watchdog interrupt OB in which the driver block is called.
The LADDR parameter input of the driver block must be connected to the start address of
the inputs of the 3WL / 3VLdevice.
The assignment of the cyclic interface is included in the description of the driver block.
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