MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
Digital Input Data
Digital input data is stored in a controller tag with the following data structure:
Byte Count
4
32
8
8
2
2
This data is acquired from the server using data blocks 0x801 and 0x803. The format of
the 0x801 block is as follows (read block from the module):
Word Offset
2 to 3
4 to 5
6 to 21
22 to 25
26 to 29
30
31
When the module passes one of these blocks to the ControlLogix processor, the ladder
logic should use the Tag Index value to determine which array index to use for placing
the data into the controller tag database. These blocks are passed to the module from
the server when requested by the client (request data block 0x101) or when the
associated data changes in the server.
The format of the 0x803 block is as follows (read block from the module):
Word Offset
2 to 3
4 to 5
6 to 9
10
11
When the module passes one of these blocks to the ControlLogix processor, the ladder
logic should use the Tag Index value to determine which array index to use for placing
the data into the controller tag database. These blocks are passed to the module from
the server when the associated data changes in the server.
ProSoft Technology, Inc.
Data
Description
Type
DINT
Tag Index
SINT[32]
Tag Descriptor
SINT[8]
Future Option
DINT[2]
Time in POSIX Format
INT
OutD.Value
INT
OutD.Status
Byte Count
Data Type
4
DINT
4
DINT
32
SINT[32]
8
SINT[8]
8
DINT[2]
2
INT
2
INT
Byte Count
Data Type
4
DINT
4
DINT
8
DINT[2]
2
INT
2
INT
Description
Digital Input CfgResponse data block code
0x00000801
Tag Index
Tag Descriptor
Future Option
Time in POSIX format
OutD.Value
OutD.Status
Description
Digital Input Response data block code
0x00000803
Tag Index
Time in POSIX format
OutD.Value
OutD.Status
Reference
User Manual
Page 83 of 98
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