21
NT311 ETH
MODBUS MAPPING TABLE
HEADER (information and commands):
Address
LO (10)
Data HI
Data LO
R: read
W:write
RW: read/write
1
Model
– MSD (ASCII)
Model - 3° Digit (ASCII)
R
2
Model - 2° Digit (ASCII)
Model
– LSD (ASCII)
R
3
Space (20H)
Vers. Fw
– MSD(ASCII)
R
4
Vers. Fw - 2° Digit (ASCII)
Vers. Fw
– LSD(ASCII)
R
5
00
00
6
00
00
-
7
00
Incorrect datum received
R-see tab.
8
00
Info various causes
R-see tab.
9
00
Controls
W-see tab.
SYSTEM: Setting and Status
Address
LO
(10)
Data HI
Data LO
Notes 1
Notes 2
R: read
W:write
RW: read/write
10
00
00
-
11
00
00
-
12
00
00
-
13
00
CPU Setting
See Note
RW
14
00
CPU Error
See Note
R
15
00
Relays Status
See Note
R
16
00
00
--
R