Simex MultiCon CMC-99/141, User Manual

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User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
7.15.2.2. Modbus SLAVE - Device channels for SLAVE mode
Device channels parameter block has 2 buttons:
– Output list – the submenu where the user can configure registers of available
logical channels. In this submenu the user decides which registers are read only or
read and write.
–
Avail. output blocks
– the submenu where the user can review the block of
registers configured automatically by the device. This submenu is only for review.
In the submenu of the Device channels parameter block the visible buttons are:
The arrows placed in the upper right corner of the screen allow the
user to switch between channels/blocks of input/output registers. The
middle button moves directly to specific channel/block of Input/Output
registers from the list.
Output list
submenu
This menu consists of the following fields:
–
Value register
– the submenu where the details of the Modbus register can be set,
• Register type , the user can select two types:
◦ HOLDING - holding registers of a SLAVE device compatible with the
Modbus protocol
◦ INPUT - input registers of a SLAVE device compatible with the Modbus
protocol
•
Write mode
- this parameter for HOLDING register type allows the user to
select whether the register is to be read only or read-write, for INPUT type this
parameter is read only,
• Register number - read-only parameter; the assignment of registers to logical
channels and other MultiCon parameters see Chapter 7.15.2.4. Modbus
SLAVE - List of registers ,
•
Data format
, we can select one of these options:
◦
32 bits, signed
, integer value, the most significant bit is the sign bit,
◦
32-bits, unsigned
- integer value without information about the sign,
◦ 32 bits, float , floating point IEEE 754 format,
◦ 32-bits, BCD , unsigned BCD value, write two digits in each byte,
• 32 bit reading , this parameter is only for 32-bit format, the user can select one
of these options:
◦
two 16-bit registers
,
◦ one 32-bit register
• Ordering - this parameter is only for 32-bit formats, the letters ABCD mean:
A - most significant byte of high words (word = 2 bytes), B - least significant byte
of high words, C - most significant byte of low words, D - least significant byte of
low words,
◦ ABCD (standard),
◦
CDAB
,
◦ DCBA ,
◦ BADC ,
• Data shift - read-only parameter, no data shift,
•
Data mask
- read only parameter, no data mask,
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