ProSoft Technology MVI46-MBP - Manual (Page 68)

MVI46-MBP ♦ SLC Platform Reference
Modbus Plus Communication Module
Page 68 of 101 ProSoft Technology, Inc.
February 19, 2008
DB
Address Modbus
Address Parameter Description
4388 44389 Write Block
Register Count
This read-only parameter specifies the number of
registers to set in the module's database from the
processor.
4389 44390 Write Block
Maximum Count
This read-only value specifies the number of
blocks of 200-word data are to be transferred from
the processor to the module.
4390 44391 Block Transfer
Failure Count
This read-only parameter specifies the number of
successive transfer errors must occur before the
Modbus Plus network communications ceases. If
the value is set to zero, communications will never
be disabled. A value from 1 to 65535 indicates the
number of successive errors that will result in the
communications shutdown.
4391 44392 Spare These registers are not assigned for use in the
MVI46-MBP database
- - - -
4409 44410 Spare
Global In File Map
DB
Address Modbus
Address Parameter Description
4410 44411 Word 0 Module's database register address for Word 0 of
Input File Data.
4411 44412 Word 1 Module's database register address for Word 1 of
Input File Data.
4412 44413 Word 2 Module's database register address for Word 2 of
Input File Data.
4413 44414 Word 3 Module's database register address for Word 3 of
Input File Data.
4414 44415 Word 4 Module's database register address for Word 4 of
Input File Data.
- -
4439 44440 Word 29 Module's database register address for Word 29 of
Input File Data.
4440 44441 Word 30 Module's database register address for Word 30 of
Input File Data.
4441 44442 Word 31 Module's database register address for Word 31 of
Input File Data.
4442 44443 Spare
- -
4449 44450 Spare