MB40 & MB45 MODBUS TCP/IP Gateway
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Appendix A
Complete Holding Register Listing
Holding
Register
Address
40,000+
No. of
Registers
Type
Description
1
1
Time
Year in format YYYY
2
1
Time
Month and day in format MMDD
3
1
Time
Hour in format HH
4
1
Time
Minute and second in format MMSS
5 to 59
1
Data
Unpacked weather data. Up to 54 “pieces” of comma
separated data is sequentially unpacked and placed
into holding registers.
60
1
Status
Comms status for the R3 command. 0 = bad, 1 = good.
61
1
Time
Year in format YYYY
62
1
Time
Month and day in format MMDD
63
1
Time
Hour in format HH
64
1
Time
Minute and second in format MMSS
65 to 119
1
Data
Unpacked weather data. Up to 54 “pieces” of comma
separated data is sequentially unpacked and placed
into holding registers.
120
1
Status
Comms status for the MEM 1 LAST command. 0 = bad,
1 = good.
121
1
Time
Year in format YYYY
122
1
Time
Month and day in format MMDD
123
1
Time
Hour in format HH
124
1
Time
Minute and second in format MMSS
125 to 179
1
Data
Unpacked weather data. Up to 54 “pieces” of comma
separated datais sequentially unpacked and placed
into holding registers.
180
1
Status
Comms status for the MEM 2 LAST command. 0 = bad,
1 = good.
181
1
Time
Year in format YYYY
182
1
Time
Month and day in format MMDD
183
1
Time
Hour in format HH
184
1
Time
Minute and second in format MMSS
185 to 239
1
Data
Unpacked weather data. Up to 54 “pieces” of comma
separated data is sequentially unpacked and placed
into holding registers.
240
1
Status
Comms status for the MEM 3 LAST command. 0 = bad,
1 = good.
242
1
Product
Code
Should read 144
243
1
Firmware
Version
100 = 1.0.0 rev
244
1
Modbus