iSMA-B-LP Room Panel/Modbus
version 1.3
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List of all Modbus Registers
The table below shows all registers available for the Room Panel.
Modbus
Address
Dec
Address
Hex
Address
Register Name
Access
Description
40001
0
0x00
VERSION_TYPE
Read & Write
First byte means version and another one type of a
device. Allows to enable 1 of 4 device actions.
30004
3
0x03
RECEIVED__FRAMES
COUNTER (32
–
bits)
Read Only
Default state is 0. Reset at the unit start and change
of transmission parameters.
30006
5
0x05
ERROR_FRAMES
COUNTER (32
–
bits)
Read Only
Default state is 0. Reset at the unit start and change
of transmission parameters.
30008
7
0x07
TRANSMITTED_FRAME
COUNTER _(32
–
bits)
Read Only
Default state is 0. Reset at the unit start and change
of transmission parameters.
30012
12
0x0C
LIVE_TIME
(32
–
bits)
Read Only
Up device time in sec
40015
14
0x0E
BACNET_DEVICE_ID
(32
–
bits)
Read & Write
Memory
Default 0xFFFFFFFF
40017
16
0x10
BAUD_RATE
Read & Write
Memory
Transmission speed is defined by the user,
calculation using the formula:
The default value is 11520 (115200 bps)
40018
17
0x11
STOP_BITS
Read & Write
Memory
Supported values are 1 and 2
The default value 1
40020
19
0x13
PARITY_BIT
Read & Write
Memory
The default value is 0 (no parity)
Allowed values:
Value
Description
0 (default)
none
1
Odd
2
Even
40021
20
0x14
REPLAY_DELAY
Read & Write
Memory
Delay in ms before sending response
The default value is 0.
40023
22
0x16
ADDRESS
Read & Write
Memory
Modbus address of the device.
The default value is 1.
40024
23
0x17
PROTOCOL
Read & Write
Memory
0
–
Modbus RTU (default)
1
–
Modbus ASCII
2
–
BACnet MS/TP
40028
27
0x1B
PANEL_PASSWORD
Read & Write
Memory
Password for Menu Edit Mode. Default is 1000.
30029
28
0x1C
SENSORS
Read Only
BIT0
–
humidity sensor
BIT1
–
CO2 sensor
BIT2
–
NTC sensor
30201
200
0xC8
BACKGROUND_ILLUMINATION
LCD_CURRENT_VALUE
Read Only
Actual display illumination value
30202
201
0xC9
BACKGROUND_ILLUMINATION
Read Only
Actual Key Pad illumination value