Rockwell Automation 1395 Multi-Comm Hardware/Software - Manual (Page 35)

Chapter 3
Configuration & Interfacing
3–24
Word 4, High byte – This byte contains the block transfer status byte (see
Table 3–L) which is a code number returned from the MCA board as a
response to the block transfer function. This byte is not used by the PLC
Controller when sending data to the Adapter and therefore is set to 0 when
performing a block transfer write in the PLC Controller program.
Table 3-L.
Block Transfer Status Byte (Word 4, High Byte)
Decimal
PLC/Octal
Successful
Message I.D. Error
Illegal Request
Not Used
Illegal Parameter
Route Error
Ignored because of Mode
Not Used
Out of Range
Execution Malfunction
11
13
10
12
9
11
8
10
Description
0
0
0
0
0
0
0
0
1
1 0
0
0
0
1
1
1
1
0
0 0
0
1
1
0
0
1
1
0
0 0
1
0
1
0
1
0
1
0
1
Word 4, Low byte – This byte contains the total length of the message in
bytes. Included in the total are the message header and the data portion of
the message. The length must be calculated in the PLC Controller program
and added to the message header before being sent to the MCA. Depending
on the action requested by the block transfer function, the message length
contained in this byte may or may not be the same when returned from the
MCA.