ProSoft Technology MVI71-MNET - Manual (Page 74)

MVI71-MNET ♦ PLC Platform Reference
Modbus TCP/IP Interface Module User Manual
Page 74 of 109
ProSoft Technology, Inc.
June 23, 2009
Offset Description Length
50 0 1
51 9959 1
52 Number of word registers in Modbus data set 1
53 Starting word address for Modbus data set 1
54 to 83 Modbus data set 30
84 to 113 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
50 0 1
51 9970 1
52 1 1
53 0 1
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
50 9956, 9957, 9958, 9960 or 9961 1
Offset Description Length
50 9956, 9957, 9958, 9960 or 9961 1
Offset Description Length
50 9970 1