Rockwell Automation 1203-SM1 SLC to SCANport Communication Module - Manual (Page 41)

4–13 Using Enhanced Mode
Publication 1203–5.9 –– October 1996
The M1 file image contains the contents of the multi–position DIP
switch, an echo of the contents of the G file data, and three receive
message buffers as shown in Figure 4.10.
Figure 4.10
M1 File Structure
Reserved
Datalink Enables
Logic Command Channel 1
Analog Reference Channel 1
Logic Command Channel 2
M1:e.000
M1:e.001
M1:e.002
M1:e.003
M1:e.004
Service (echo or error)
Class (echo)
Instance (echo)
Attribute (echo)
Response Length = n
Resp Data 2
Resp Data n
Resp Data 1
...
M1:e.100
M1:e.101
M1:e.102
M1:e.103
M1:e.104
M1:e.105
M1:e.1xx
Analog Reference Channel 2
Logic Command Channel 3
Analog Reference Channel 3
Channel 1 Datalink A1 In
Channel 1 Datalink A2 In
M1:e.005
M1:e.006
M1:e.007
M1:e.008
M1:e.009
Service (echo or error)
Class (echo)
Instance (echo)
Attribute (echo)
Response Length = n
Resp Data 2
Resp Data n
Resp Data 1
...
M1:e.200
M1:e.201
M1:e.202
M1:e.203
M1:e.204
M1:e.205
M1:e.2xx
Channel 1 Datalink B1 In
Channel 1 Datalink B2 In
Channel 1 Datalink C1 In
Channel 1 Datalink C2 In
Channel 1 Datalink D1 In
M1:e.010
M1:e.011
M1:e.012
M1:e.013
M1:e.014
Service (echo or error)
Class (echo)
Instance (echo)
Attribute (echo)
Response Length = n
Resp Data 2
Resp Data n
Resp Data 1
...
M1:e.300
M1:e.301
M1:e.302
M1:e.303
M1:e.304
M1:e.305
M1:e.3xx
Channel 1 Datalink D2 In
Channel 2 Datalink A1 In
Channel 2 Datalink A2 In
Channel 2 Datalink B1 In
Channel 2 Datalink B2 In
M1:e.015
M1:e.016
M1:e.017
M1:e.018
M1:e.019
Echo of G File Contents
and DIP Switch Read Out
e = slot location
Channel 1
Receive Buffer
Channel 2
Receive Buffer
Channel 3
Receive Buffer
DIP SW
Channel 2 Datalink C1 In
Channel 2 Datalink C2 In
M1:e.020
M1:e.021
Channel 2 Datalink D1 In
Channel 2 Datalink D2 In
Channel 3 Datalink A1 In
Channel 3 Datalink A2 In
Channel 3 Datalink B1 In
M1:e.022
M1:e.023
M1:e.024
M1:e.025
M1:e.026
Channel 3 Datalink B2 In
Channel 3 Datalink C1 In
Channel 3 Datalink C2 In
Channel 3 Datalink D1 In
Channel 3 Datalink D2 In
M1:e.027
M1:e.028
M1:e.029
M1:e.030
M1:e.031
SCANport messages access data structures within the SCANport
device. These data structures are called objects. An object contains
information for a particular purpose. For example, a parameter
object can contain information such as parameter values, parameter
names, scaling information, and units.