-
11
-
NOVATEK-ELECTRO EM-481
Changeable
settings
The parameters listed in Table 5.8 that can be changed
and activated as described in it. 5.3.3 and 5.3.4
Only in mode of setting,
reading or writing
300
– 799,
5250
– 5499
Active settings The settings being used by the device at the moment
In any mode, only
reading
2300
– 2799,
5500
– 5749
Saved settings
The set is saved regardless the power of the device and
is used at starting
Only in mode of setting,
only reading
3300
– 3799,
5750
– 5999
Table 5.4
– Format of parameters presentation in Modbus registers
Parameter
Range of values
Description
Number of occu-
pied registers
Number
0
– 65535
Whole number (16 bit) in standard range of Modbus
register values
1
Number
-32768
– +32767
Whole number (16 bit) in complementary arithmetic
1
Number
0
–
4294967295
In two registers,
Upper part
– first
Whole number, which value can exceed the limit for
Modbus register (65535)
2
Number
-2147483648
–
+2147483647
in two registers, the upper
part is the first
Whole number (32 bit) in complementary arithmetic
2
Character
string
In every register
– number of
0 to 255 - ASCII character
code or 0 (the end of string)
A set of values, each of which is equal to the code of one
character in the ASCII encoding. If the string is shorter than
the maximum length, the last character is placed code 0.
Max. length of
string for this
parameter
IP-address
(IP-mask)
In every register
– one byte
(0
–255)
Set of four byte of address IPv4, from left to right
4
MAC-address
In every register
– one byte
(0
–255)
Set of six byte of address MAC-48, from left to right
6
Table 5.5
– Parameters describing the device
Parameter
Description
Address
Device type
The code that defines the MODBUS product by the manufacturer (23
– EM-481)
0
Firmware version Firmware version of embedded software
1
Check code
CRC32 of firmware of embedded software
2
–3
Table 5.6
– Parameters of the current mode
Parameter
Range of
values
Initial
volume
Description
Address
Entering
password
String of
characters
0
When entering a valid password, the client is given the
appropriate permission (see registers 710 - 749).
When you enter an empty string, the client rights are reset to the
rights level at the time of connection.
100
–
119
Control
command
0
–40959,
Writing in
the
configura-
tion mode
0
0: no activity;
1:
“Restart” – EM-481 restart;
2:
“Save” – save the changes of settings via
MODBUS;
3: "Apply" - apply settings without restarting (only available for
MODBUS and user parameters);
4: "Save and apply" - similarly to commands 2 and 3 sent one after
another;
9:
“Cancel" - to read the saved settings;
51:
“Apply for Modbus” – apply settings via Modbus and RS-485;
59: “Apply for user” – apply settings for the user area of the registers;
81: “Synchronize clock with NTC server”
82: “Obtain account balance from GSM operator”
444:
“Back to Factory Settings” - reset the settings to the factory
settings;
35381: "Start setting the clock" - it allows access to the registers
of clock setting;
35431: "Cancel setting the clock" - it closes the access to the
registers of the clock setting without changing hours;
40959: "Clear the internal memory of the tasks" - to erase the
program for logic of actions (when the memory card is inserted, it
will automatically read again).
120
Table 5.7
– Parameters of current state
Parameter
Description
Address
