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Access to all data ordered by device
For performance reasons, some applications might require access to the entire I/O data with one Modbus TCP telegram.
This access method makes it possible to read or write data from all the connected devices with one request.
Address
Data
Length
Access
0x3000
dec 12288
Input Data Block
DI1
AI1
Diag1
DI2
AI2
Diag2
...
DI4
AI4
Diag4
0...1216 registers
Read
0x4000
dec 16384
Output Data Block
DO1
AO1
DO2
AO2
DO3
AO3
DO4
AO4
0...1216 registers
Write, Read
The total input data block length depends of the length of the AI, DI, diagnostics data of each configured
device. The total output data length depends of the length of the AO, DO data of each configured device. If
only three ports are used (e.g. port four used as spare) the data length for device four must be set to zero in
the input and output data block. If a device does not provide a certain data type (e.g. AO), the length of this
field has to be set to zero. Only word access is supported in this address range.
Access to all data ordered by data type
For performance reasons some applications might require access to the entire I/O data with one Modbus TCP telegram. This
access method makes it possible to read or write data from all devices ordered by data type.
Address
Data
Length
Access
0x5000
dec 20480
Input Data Block
DI1
DI2
DI3
DI4
AI1
...
AI4
Diag1
...
Diag4
0...1216
registers
Read
0x6000
dec 24576
Output Data Block
DO1
...
DO4
AO1
...
AO4
0...1216
registers
Write, Read
The total input data block length depends of the length of the AI, DI, Diagnosis data of each configured device.
The total output data length depends of the length of the AO, DO data of each configured device. If only three
ports are used (e.g. port four used as spare) the data length for device four must be set to zero in the input and
output data block. If a device does not provide a certain data type (e.g. AO), the length of this field has to be
set to zero. Only word access is supported in this address range.
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U N I V ER S A L M OTO R CO N T R O L L ER U M C 10 0. 3 |
MTQ2 2- FB P.0 MODBUS TCP M A N UA L