Description of blocks
3.2 Driver module DRV_3WL
Library SENTRON 3WL / 3VL for SIMATIC PCS 7
28
Function Manual, 11/2008, A5E02316914A-01
Name
Inputs
Outputs
36
EB of phase-to-phase voltage L23
1
37
EB of phase-to-phase voltage L31
1
38
EB of neutral-point star voltage L1N
1
39
EB of neutral-point star voltage L2N
1
40
EB of neutral-point star voltage L3N
1
41
EB of mean value of the three power factors
1
42
EB of total active energy
1
43
EB of total apparent power
1
Number of bytes
44
2
3.2.6
Addressing and module driver
The I/O addresses of 3WL must lie completely within the process image of the CPU. In the
CFC chart, the LADDR input is connected to the base address of the 3WL device.
Procedure:
Select input parameter → right mouse button → Interconnection to
address... → Entere.g. EW512
If 3WL is directly connected to the DP master system, the module driver connects block
outputs OMODE, QRACKF and QMODF to inputs MODE00, RACKF and MODF of the block
MOD_PAX0 and the module driver connects input DIAG_INF to output QDIAG_INF of
diagnostics block DIA_WLVL.
In the case of operation following a Y-Link DPV1, the module driver connects block inputs
MODE, RACKF and DIAG_INF to outputs OMODE, QRACKF and QDIAG_INF of
diagnostics block DIA_WLVL.
In the case of operation following a Y-Link DPV0, the module driver connects block inputs
MODE and RACKF to outputs OMODE00 and QRACKF of block PADP_L00.
The block input BASADR is parameterized with the logical base address of the 3WL device
by the module driver.
The block input BASADR_OUT is parameterized with the start address of the outputs of the
3WL device by the module driver.
The input DPA_LINK is parameterized with the connection mode of the 3WL device by the
module driver.
●
DPA_LINK = 0 -> Directly connected to the DP master
●
DPA_LINK = 1 -> Connected following a DP/PA link
3.2.7
Processing the diagnostics data of the 3WL device
If 3WL is directly connected to the DP master system, the block processes the diagnostic
information that is supplied to it from the DIA_WLVL diagnostics block via the input
DIAG_INF.
The user has the possibility of setting the cycle for cyclic reading of the diagnostics data
record at the "DIAREQ_T" input. At DIAREQ_T = 0.0 minutes no cyclic reading takes place.
Summary of Contents for SENTRON 3WL
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