4x50 EtherNetIP.190129.1v4: User manual
WWW.EILERSEN.COM
Version: 2020-11-24, rev.: 1v4
Page: 7
3.1.1 Output data
The 2 output data bytes (to the 4x50 unit) are structured like this:
Lc
Register
Byte 0 (LSB)
Byte 1 (MSB)
7
6
5
4
3
2
1
0
15 14 13 12 11 10
9
8
-
-
-
-
-
-
-
-
-
-
-
-
AS
LcRegister
is a word (two bytes) that constitutes a bit register consisting of
16 bits (bit 0
–
15). Bit 8-11 in the
LcRegister
(the 4 least significant bits of
the most significant byte) are used as an
Actual Value Selector
(
AS
).
The other bits in the
LcRegister
of the output data are
NOT
used.
The
Actual Value Selector
(
AS
) is used as a request to select the actual in-
put data transferred from the 4x50 unit back to the EtherNetIP master. Once
the
AS
in the response coming back from the 4x50 unit matches the
AS
in the
request sent to the 4x50 unit, then the EtherNetIP master knows the data
transferred correspond to the requested data. The following data transfers can
be requested using the
Actual Value Selector
(
AS
) and are described in de-
tail below:
Actual Value Selector
(AS)
Transfer
0
LcSignal(X):
Load cell signals (normal operation) (filtered and scaled)
1
LcSignalFiltered(X):
Load cell signals (filtered but not scaled)
2
LcSignalUnFiltered(X):
Load cell signals (not filtered and not scaled)
3
LcSerialNumber(X):
Load cell serial numbers
4
LcCapacity(X):
Load cell capacities
5
LcExponent(X):
Load cell exponents
6
TestValue(X):
Test values
7
SoftwareVersion(X):
Software version installed in module.
IMPORTANT:
Before using the input data described below, the EtherNetIP
master must ensure the
AS
response value in the input data (from 4x50)
matches the
AS
request value in the output data (to 4x50).
