Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 233
Appendix F MicroLogix 1400 Distributed Network Protocol
As an example, 16-bit, 32-bit and Short Floating Point Analog Output Object
Files are configured as below. Data File N17 has 10 elements, L18 has 10
elements and F19 has 10 elements accordingly. A total of 30 Analog Output
Object index are configured. Index 0 of the Analog Output Object is N17:0,
Index 10 is L18:0, Index 20 is F19:0 and Index 29 is F19:9.
Analog Output Command – Control analog output block (AOB)
When the controller is in Non-executing mode, the controller will not accept
an Analog Output Command. The controller returns a Control Status Code 7 in
the response. To access the objects 41(AOB), the controller mode should be in
Executing mode.
Note that Executing mode includes Run, Remote Run, Test Continuous Scan,
and Test Single Scan modes. Any other modes are Non-executing modes.
DNP3 BCD Object
The supported object group and variations are:
Numeric Static Objects:
• g101v1 – Binary-Coded Decimal Integer – Small
Related Object File Number:
• Small BCD Object File Number
Related Configuration File Number:
• Small BCD Config File Number
To generate a Small BCD Object from the DNP3 Subsystem in the controller,
you should configure the Small BCD Object File Number in the DNP3 Slave
Application Layer Configuration file.
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