Appendix 1 Modbus Protocol
38
TI 01W01A56-01EN
[BBR_STATUS]
The Access Point operational status information is shown in the backbone router status (BBR_
STATUS).
The following table shows the attributes of the BBR_STATUS.
BBR_STATUS
(32bit x 8 : Unsigned16)
And the data elements of a device are mapped to Modbus registers as follows.
16
8 7
0
00000000
0x0080 (Reserved)
n
BBR_STATUS (Upper 16bit)
n+1
~
~
BBR_STATUS (Lower 16bit)
n+8
Below is an example of BBR_STATUS information.
Modbus
Address
Name
Data Format
Contents
n
Data status
Unsigned16
0x0080, fixed: normal
n+1
Backbone
router
status
Unsigned16
Backbone router status
(0: connected/1: not connected)
Unsigned16
0, fixed (reserved bits)
n+2
~ n+8
Mar. 31, 2014-00