Maxiflex T2 CPU User Manual
46
-© Omniflex
UMM124XBR04.pdf
DIT Number
Description
64052
Set the Module ID for the module installed in I/O Slot 2
64053
Set the Module ID for the module installed in I/O Slot 3
64054
Set the Module ID for the module installed in I/O Slot 4
64055
Set the Module ID for the module installed in I/O Slot 5
64056
Set the Module ID for the module installed in I/O Slot 6
64057
Set the Module ID for the module installed in I/O Slot 7
64058
Set the Module ID for the module installed in I/O Slot 8
64059
Set the Module ID for the module installed in I/O Slot 9
64060
Set the Module ID for the module installed in I/O Slot 10
64061
Set the Module ID for the module installed in I/O Slot 11
64062
Set the Module ID for the module installed in I/O Slot 12
64063
Set the Module ID for the module installed in I/O Slot 13
64064
Set the Module ID for the module installed in I/O Slot 14
64065
Set the Module ID for the module installed in I/O Slot 15
64072 - 64079
Modbus Data Register Mapping(Modbus Serial Port only)
This function is only applicable when the Serial Port is being used as a Modbus Slave
port. This next set of registers are used to define the ranges of registers assigned as
“Holding Registers”, “Input Registers”, “Coils” and “Input Status” registers as defined in
the Modbus protocol.
This allows the position and number of registers in the DIT assigned to these Modbus
data types.
64072
Holding Register Start DIT
64073
Holding Register End DIT
64074
Input Register Start DIT
64075
Input Register End DIT
64076
Coil Start DIT
64077
Coil End DIT
64078
Input Status Start DIT
64079
Input Status End DIT
64080 - 64094
Modbus Compressed DIT Addressing(Modbus Serial Port only)
This function is only applicable when the Serial Port is being used as a Modbus Slave
port. Some third party Modbus Master devices cannot address the full range of DIT
registers i.e. 1 – 64549 Holding Registers. In most cases the Modbus Master does
require to access all of these registers – in fact it is typically a much smaller amount of
registers required per I/O Slot. It is therefore possible to reduce the normal address
space allocated per I/O Slot from 4000 to a more suitable number. The remaining DIT
registers are then excluded from the address space thus allowing the Modbus Master
to access all required I/O within its limited address range.
This is accomplished by specifying a User start address for each I/O Slot as indicated
below.
64080
User Start Address for I/O Slot 1
I/O Slot 1 will always start from 4000 and cannot be changed.
