ProSoft Technology ControlLogix MVI56E-SMGC User Manual page 85

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
The format of the 0x403 block is as follows (read block from the module):
Word Offset
2 to 3
4 to 5
6 to 9
10 to 11
12 to 13
14
15 to 16
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 two members of the controller tag data structure alter the value in the server
and control the analog output point using a data block 0x402. 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
9 to 10
Operation Mode:
0 = Set
1 = Setpoint
2 = Step (0=stop, >0=move open, <0=Move closed)
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]
4 DINT
4 REAL
2 INT
4 DINT
Byte Count Data Type
4 DINT
4 DINT
2 INT
4 REAL
Description
AnalogOutput Response data block code
0x00000403
Tag Index
Time in POSIX format
Readback Step
Readback Value
Readback Status
Check Back
Description
Analog Output Request data block code
0x00000402
Tag Index
Operation Mode
Setpoint
Reference
User Manual
Page 85 of 98