User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
–
Data shift
- values can be bit moved to the right any integer value in the range
(parameter does not exists for
float
format):
•
for 16-bit format from 0 to 15,
•
for 32-bit format from 0 to 31,
–
Data mask
, the device allows the user to use the masking of data on individual bits,
mask 0xFFFF for 16-bit format is means that the entire value of register is visible,
while the 0x0 mask (no mask) means that the value is zero,
7.15.3.4.
Modbus MASTER - Register blocks parameter block
The device has the ability to read data from the SLAVE devices using multi register queries.
By default this feature is configured automatically, but can be switched to manual mode.
Register blocks
group has following fields:
–
Blocks config. mode
•
automatic
- the device automatically creates a blocks of registers to be read
using the list defined in
Device channels
sub-menu. Then the
Block list
is
informal only and cannot be edited.
•
manual
- user must create a list of registers blocks using
Block list
parameter
–
Maximum block size
- occurs only for the
Blocks config.mode
=
automatic.
This
parameter allows user to limit number of data registers to be read at once. It can be
very useful when SLAVE devices has a limitation of max. number of registers read in
a single frame.
–
Block list
– occurs only for
manual
mode, parameter description bellow in this
chapter,
–
Avail. Input blocks
– read only submenu, allows to preview automatically or
manually created input blocks,
–
Avail. Output blocks
– read only submenu, allows to preview automatically or
manually created output blocks,
Block list submenu
This button appears only for manual configuration mode and
allows the
user to add a new block of registers to list of register blocks.
This button appears only for manual configuration mode and allows the
user to remove the block of registers from the list of register blocks.
Arrows placed in the upper right corner of the screen allow switching
between register blocks. Middle button allows direct selection of a
specific register block.
To the
Block list
parameters are:
–
Block type:
•
read Holding reg.
- HOLDING register group for reading purpose,
•
read INPUT reg.
- INPUT register group for reading purpose,
•
write HOLDING reg.
- HOLDING register group for writing purpose,
–
Register size
- defines data size, can be set to:
•
16-bit registers
- data is read/preset as 16 bit registers; this value can be also
used for 32-bit registers reading/preseting. In a such case data is composed as
two 16-bit registers and params:
First register
&
Last register
must select a
minimum of 2 registers (e. g.
First register: 3h
,
Last register: 4h)
. The
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