Modbus Format Strings tfmt and rfmt
The format strings tell the command processor how to pack and unpack data.
| Format | Description |
|---|---|
B |
8-bit unsigned byte |
b |
8-bit signed byte |
C |
8-bit character |
W |
16-bit unsigned word |
w |
16-bit signed word |
D |
32-bit double unsigned word |
d |
32-bit double signed word |
F |
32-bit IEEE-754 floating point value |
S |
string |
S# |
String of length #, e.g. S4 |
+ |
Repeat the last parameter until no more data (only at end of format string) |
See: modbus.cmd, etc