ProSoft Technology MVI69-DFCM - Manual (Page 82)

MVI69-DFCM ♦ CompactLogix or MicroLogix Platform Reference
DF1 Interface Module
Page 82 of 117 ProSoft Technology, Inc.
November 3, 2008
Step Description
1 The Master driver obtains configuration data from the internal Compact Flash disk. The
configuration data obtained includes the number of commands and the Master
Command List. These values are used by the Master driver to determine the type of
commands to be issued to the other nodes on the DFCM network.
2 After configuration, the Master driver begins transmitting read and/or write commands to
the other nodes on the network. If writing data to another node, the data for the write
command is obtained from the module's internal database to build the command.
3 Presuming successful processing by the node specified in the command, a response
message is received into the Master driver for processing.
4 Data received from the node on the network is passed into the module's internal
database, assuming a read command.
5 Status is returned to the CompactLogix or MicroLogix processor for each command in
the Master Command List.
The Reference chapter describes the structure and content of each command.
Care must be taken in constructing each command in the list for predictable
operation of the module. If two commands write to the same internal database
address of the module, the results will not be as desired. All commands
containing invalid data will be ignored by the module. The following table
describes the functions supported by the module and the format of each
command:
Module Information Data Device Information Data
Col # 1 2 3 4 5 6 7 8 9 10 11
Function
Code Enable
Code Internal
Address Poll
Interval
Time
Count Swap
Code
Node
Address Function
Code Function Parameters
FC 1 Code Register Seconds Count Code Node 1 Word
Address
FC 2 Code Register Seconds Count Code Node 2 Word
Address
FC 3 Code Register Seconds Count 0 Node 3 Word
Address
FC 4 Code Register Seconds Count 0 Node 4 Word
Address
FC 5 Code Register Seconds Count Code Node 5 Word
Address
FC 100 Code Register Seconds Count Code Node 100 File
Number Element Sub-
Element
FC 101 Code Register Seconds Count Code Node 101 File
Number Element Sub-
Element
FC 102 Code Register Seconds Count 0 Node 102 File
Number Element Sub-
Element
FC 501 Code Register Seconds Count Code Node 501 File
Type File
Number Element
FC 502 Code Register Seconds Count Code Node 502 File
Type File
Number Element Sub-
Element
FC 509 Code Register Seconds Count Code Node 509 File
Type File
Number Element
FC 510 Code Register Seconds Count Code Node 510 File
Type File
Number Element Sub-
Element
FC 511 Code Register Seconds Count 0 Node 511 File
Type File
Number Element Sub-
Element
Node Address = Destination Address for Message