A simple CLI for issuing modbus requests. Supports modbus and modbus over TCP.
To view full help information, run:
mbc --helpFor example, to read the first 10 coil statuses of a Modbus/TCP server on 127.0.0.1:
$ mbc 'tcp://127.0.0.1' read coils 0 10
address status
0 false
1 false
2 true
3 true
4 false
5 true
6 false
7 false
8 false
9 false
Because I used a HTTP-based uri parser, the port is represented as a u16. This limits the baud rate when using Modbus serial lines to 65535.
Work is needed to change to/create a URI string parser that allows arbitrarily large ports
If a custom request is issued using mbc custom, the response value is not properly output if it matches any non-custom Response variants.
Reproduction:
# Equivalent to read coils 0 2
printf '\x01\x00\x00\x00\x02' | cargo run -- 'tcp://127.0.0.1' customAs a user, I expect the custom request functionality to always return the response.
Faulty code: https://github.com/micrictor/mbc/blob/master/src/custom/mod.rs#L42
Using URI properties similar to JDBC connection URLs, permit the user to specify data bits, flow control, parity, and stop bits for serial sessions.
Ref: https://docs.rs/tokio-serial/latest/tokio_serial/struct.SerialPortBuilder.html#method.data_bits
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