Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual - Manual (Page 28)

Publication 1747-UM655B-EN-P - June 2007
28 Planning Your Configuration and Data Mapping Your Devices
Mapping RediSTATION Output Data for an M0 File Data Table
Write
The RediSTATION operator interface’s output is mapped to the
1747-SDN module’s M0 file. Within the output byte is a bit for the
indicator light. The output data file is then transferred from the SLC
500 processor application to turn the light on or off.
RediSTATION Output Byte
1
2
The SLC 500 processor’s output
data file containing the indicator
light bit for the RediSTATION
operator interface is transferred
to the 1747-SDN Module’s M0
file data table.
What’s Happening?
The M0 file data table is then
sent to the RediSTATION
operator interface via a polled
message from which the
RediSTATION operator interface
receives its indicator light bit.
N8:0 0000 0000 0000 000L
N8:1 0000 0000 0000 0000
N8:2 0000 0000 0000 0000
N8:3 0000 0000 0000 0000
N8:4 0000 0000 0000 0000
PLC-5 Processor
Output Data File 1
N8:149 0000 0000 0000 0000
2
1747-SDN Module M1 File Data Table
Start/Stop Station Node Address 7
L = Fit for the Station
Indicator Light
= Unused Bits
1 byte L
Word 0
Word 1
Word 2
Word 3
Word 4
Up to
Word 149
L
1
Example: The RediSTATION operator interface’s indicator light (L)
is taken from N8:1/0 in the SLC 500 processor’s output data file.
1
This mapping is based upon the example in chapter 4.
The actual mapping for your system may be different.