ProSoft Technology MVI69-DFCM - Manual (Page 79)

Reference MVI69-DFCM ♦ CompactLogix or MicroLogix Platform
DF1 Interface Module
ProSoft Technology, Inc. Page 79 of 117
November 3, 2008
Step Description
2 A Host device, such as the Rockwell Automation PLC or an HMI application issues a
read or write command to the module's node address. The port driver qualifies the
message before accepting it into the module.
3 After the module accepts the command, the data is immediately transferred to or from
the internal database in the module. If the command is a read command, the data is
read out of the database and a response message is built. If the command is a write
command, the data is written directly into the database and a response message is built.
4 After the data processing has been completed in Step 3, the response is issued to the
originating master node.
5 Counters are available in the Status Block that permit the ladder logic program to
determine the level of activity of the Slave Driver.
Review the Module Set Up section for a complete list of the parameters that
must be defined for a slave port. The slave driver supports the following DFCM
command set:
Basic Command Set Functions
Function
Code Command Function Definition PLC5 SLC500 &
MicroLogix Power-
monitor II ControlLogix
1 0x00 N/A Protected Write X X
2 0x01 N/A Unprotected Read X X X
3 0x02 N/A Protected Bit Write X X
4 0x05 N/A Unprotected Bit Write X X
5 0x08 N/A Unprotected Write X X X
PLC-5 Command Set Functions
Function
Code Command Function Definition PLC5 SLC500 &
MicroLogix
Power-
monitor II ControlLogix
100 0x0F 0x00 Word Range Write
(Binary Address) X X
101 0x0F 0x01 Word Range Read
(Binary Address) X X
102 0x0F 0x26 Read-Modify-Write
(Binary Address)
X X
150 0x0F 0x00 Word Range Write
(ASCII Address)
X X
151 0x0F 0x01 Word Range Read
(ASCII Address) X X
152 0x0F 0x26 Read-Modify-Write
(ASCII Address) X X
SLC-500 Command Set Functions
Function
Code Command Function Definition PLC5 SLC500 &
MicroLogix Power-
monitor II ControlLogix
501 0x0F 0xA1 Protected Typed
Logical Read With
Two Address Fields
X X
502 0x0F 0XA2 Protected Typed
Logical Read With
Three Address Fields
X X X
509 0x0F 0XA9 Protected Typed
Logical Write With
Two Address Fields
X X