ProSoft Technology MVI56-DFCMR - Manual (Page 76)

MVI56-DFCMR ♦ ControlLogix Platform Reference
DF1 Interface Module with Reduced Data Block
Page 76 of 113 ProSoft Technology, Inc.
October 20, 2008
The PLC-5 and SLC-500 command set require the use of files. These files are
emulated in the module. The module defines these files each as containing 200-
word registers that overlay the internal database. The following table shows the
relationship of the files to the user data area of the internal database:
File Database Register
N7:0 0
N8:0 200
N9:0 400
N10:0 600
N11:0 800
N12:0 1000
N13:0 1200
N14:0 1400
N15:0 1600
N16:0 1800
N17:0 2000
N18:0 2200
N18:0 2400
N20:0 2600
N21:0 2800
N22:0 3000
N23:0 3200
N24:0 3400
N25:0 3600
N26:0 3800
N27:0 4000
N28:0 4200
N29:0 4400
N30:0 4600
N31:0 4800
N32:0 5000
Note: The way these files are emulated depends of the First File and File Size parameters. The
previous example shows using the First File parameter set to 7 and the File Size parameter set to
200.
In order to retrieve data from the modules database register 200, the remote
master would issue a command using the address N8:0. In order to interface with
database base register 405, the remote master would use the address N9:5. The
following table outlines the complete file emulation for the module:
Register Range File Start File End Content Size
0 to 4999 N7:0 N31:199 User Data 5000
5000 to 5009 N32:0 N32:9 Backplane Configuration 10
5010 to 5039 N32:10 N32:39 Port 1 Setup 30
5040 to 5069 N32:40 N32:69 Port 2 Setup 30
5070 to 5199 N32:70 N32:199 Reserved 130
5200 to 6399 N33:0 N38:199 Port 1 Commands 1200
6400 to 7599 N39:0 N44:199 Port 2 Commands 1200