Simex multicon cmc-99 - Page 218

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
Register Range Register description
01h -4000 ÷ +8500
The temperature measured with a resolution given to 2 decimal places
(in the U2 code, excluding decimal point, for example, the value of
3523 means the temperature of 35.23°C)
02h
00h, 10h,
20h,40h, 80h
Status of the temperature, contains the error code, which must be
interpreted as follows:
00h
- measuring correctly
10h
- flooding the interior of the sensor
20h
- damage temperature sensor
40h
- measured temperature is lower -40°C
80h
- measured temperature is upper 85°C
03h 0÷2
Specify the decimal point as a result, the value of 2 means that a point
precedes the last 2 digits, the value of 0 means no decimal point
Tab. 7.9 Description of the registers of SLAVE device
In first step:
– touch screen and press the
Menu
button,
– press the
Device configuration
button,
– enter the
Modbus
menu,
– using the arrows in upper right corner choose
Port number
:
1
(
MB1
in accordance
with
Fig. 7.129
),
–
Mode
parameter set as
MASTER
,
–
Baud rate
parameter set as
9600 bits/sec.
(it should be the same as in the SLAVE
device),
–
Format
parameter set as
8N1
,
– in
Request timeout
parameter write
0.2 sec.
,
– in
Request retrials
parameter write
3
,
– press
Slave devices
button:
• using the arrows in upper right corner select Slave device
Modbus address
, in
this case it is
1
,
•
Device type
parameter set as
defined
,
• in
Device name
parameter write
Temperature converter
,
• in the
Device channels
parameter block press the
Input list
button to define
the register to read,
◦ if the
Input list
is empty, press the sign
'+'
to add input channel (if the list
has defined the input channels use the arrows in the upper right corner to
select the input channels),
◦ in the
Value register
parameter set:
–
Register type: HOLDING
- using
03h
function to read the holding
registers as specified by the Modbus RTU,
–
Register number: 1h
- the number of the read register
–
Data format: 16 bits, signed
- the choice of format depends on
SLAVE device register format,
–
Data shift: 0
, because we do not want to move data read from Slave
device,
–
Data mask: 0xFFFF
, which reads the whole value of register, exit the
Value register
parameter menu,
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