ProSoft Technology MVI71-MNET - Manual (Page 68)

MVI71-MNET ♦ PLC Platform Reference
Modbus TCP/IP Interface Module User Manual
Page 68 of 109
ProSoft Technology, Inc.
June 23, 2009
Offset Description Length
3 Starting address for Modbus data set 1
4 to 63 Modbus data set 60
Offset Description Length
0 9959 1
1 9959 1
2 Number of word registers in Modbus data set 1
3 Starting word address for Modbus data set 1
4 to 33 Modbus data set 30
34 to 63 Bit mask to use with the data set. Each bit to be considered
with the data set will have a value of 1 in the mask. Bits to
ignore in the data set will have a value of 0 in the mask. 30
Offset Description Length
0 9970 1
1 9970 1
2 1 1
3 0 1
4 to 63 Spare data area 60
The ladder logic should copy and parse the received message and control the
processor as expected by the master device. The processor must respond to the
formatted pass-through control blocks with a write block. The following tables
describe the format of the write blocks.
Offset Description Length
0 9956, 9957, 9958, 9960 or 9961 1
1 to 63 Spare 63
Offset Description Length
0 9959 1
1 to 63 Spare 63
Offset Description Length
0 9970 1
1 to 63 Spare 63
In order to copy status data from module to processor, use the Error/Status
Pointer parameter in the [Module] section of the configuration file.
Move Status to desired database registers, then create a rung in the ladder logic
to pass them to the processor.
Program Scan Counter 1
Block Transfer Status 6
Not used 10
MNet Server Status 10
MBAP Server Status 10