ProSoft Technology MVI46-DFCM - Manual (Page 91)

Reference MVI46-DFCM ♦ SLC Platform
DF1 Communication Module
ProSoft Technology, Inc. Page 91 of 103
October 20, 2008
5.6.5 MicroLogix Processor Specifics
This section contains information specific to the MicroLogix processor based
family when used with the DF1 command set. The MicroLogix processor
commands support a file type field entered as a single character to denote the
data table to interface with in the command. This field is the same as that used
for a SLC processor. The following table defines the relationship of the file types
accepted by the module and the SLC file types:
SLC File Types
File Type File Type Command Code Description
S 83 Status
B 66 Bit
T 84 Timer
C 67 Counter
R 82 Control
N 78 Integer
F 70 Floating-point
Z 90 String
A 65 ASCII
The File Type Command Code is the ASCII character code value of the File Type
letter. This is the value to enter into the "File Type" parameter of the DF1
Command configurations in the data tables in the ladder logic.
Additionally, the SLC specific functions (502, 510 and 511) support a sub-
element field. This field selects a sub-element field in a complex data table. For
example, to obtain the current accumulated value for a counter or timer, the sub-
element field should be set to 2.
5.6.6 ControlLogix Processor Specifics
This section contains information specific to the ControlLogix processor when
used with the DF1 command set. The current implementation of the DF1
command set does not use functions that can directly interface with the
ControlLogix Tag Database. In order to interface with this database, the table-
mapping feature provided by RSLogix 5000 must be used. The software permits
the assignment of ControlLogix Tag Arrays to virtual PLC 5 data tables. The
ProSoft module using the PLC 5 command set defined in this document can then
reach this controller data.