Vendor Object - Leuze electronic MSI 400 Series Manual

Tab. 8.26: Request data structure for Write SLC-protected logic input with three address fields
Name
Size
File number
File type
Element number
Subelement
Payload
8.4.8

Vendor Object

The Vendor Object with class ID = 0x78 provides CRC, status and diagnostic data which are not covered
by device profile General Purpose Discrete I/O Device. Furthermore it supplies an interface to input and
output data in a compressed and therefore network traffic saving format.
Note that several instances have different attribute types and numbers. Packing several data together into
this vendor object class is made for legacy reasons.
8.4.8.1 Instance 1
Instance 1, attributes 1 to 50, supply input bytes configured by the output data set 1 in MSI.designer. This
is data transferred by the logic of the controller module to the PLC.
8.4.8.2 Instance 2
Instance 2, attribute 1, supplies the CRC of the active project file created by MSI.designer. Instance 2, at-
tributes 2 to 8 are reserved for future applications.
8.4.8.3 Instance 3
Instance 3, attributes 1 to 60 make state bytes available. The descriptions for each bit are listed in the table
State bytes of the controller module MSI 420/430 [chapter 8.4.8.7]. This data corresponds to data set 3,
which is described at various points in this document.
A value = 1 for bits in instance 3, attributes 1 to 60, stands for "OK"/"Not used"/"Reserved". A value = 0
stands for "Fault" or "Error" or "Outside the limit". "Doesn't matter" means that the value can be equal to 0
or 1.
"EA module at Pos. n" with n = 1 .. 12 stands for the first to twelfth safe or unsafe expansion module.
8.4.8.4 Instance 4
The instance 4, attributes 1 to 60 are reserved for future use. Values are zero and changes are reserved.
8.4.8.5 Instance 5
Attribute 1 of instance 5 makes the system state/mode of the controller module available. The values are
listed in the following table:
Tab. 8.27: System state/modes of the MSI 430 module
System state/mode
Supply voltage A1/2 available
Initialization
Configuration / project file required
Configuration running / project file being downloaded
Idle
Leuze electronic
Data type Description
USINT Number of data bytes to be written
USINT Assembly instance ID
USINT Data type
USINT Offset = ID of the first element of the an-
swer
USINT Doesn't matter
UINT[n] n = Size/2
Value
0
1
2
3
4
MSI 400
EtherNet/IP gateway
Data range
0 to 50
37
0x89 = Integer data
0 to 25 – Size/2
0 to 254 (for number of
bytes 1)
0 to 65535
85