ProSoft Technology ControlLogix MVI56E-SMGC User Manual page 87

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
The format of the 0x1003 block is as follows (read block from the module):
Word Offset
2 to 3
4 to 5
6 to 9
10
11
12 to 13
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.
The last member of the controller tag data structure alters the value in the server and
control the digital output point using a data block 0x1002. These data are passed from
the ladder logic to the module in a write block with the following format:
Word Offset
4 to 5
6 to 7
8
The ladder logic should be programmed to send this message when a new setpoint
value is required for a specific tag in the server.
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Byte Count Data Type
4 DINT
4 DINT
8 DINT[2]
2 INT
2 INT
4 DINT
Byte Count Data Type
4 DINT
4 DINT
2 INT
Description
Digital Output Response data block code
0x00001003
Tag Index
Time in POSIX format
Readback Value
Readback Status
Check Back
Description
Digital Output Request data block code
0x00001002
Tag Index
Setpoint
Reference
User Manual
Page 87 of 98