modbus-gateway 0.1.0

Cross-platform Modbus gateway CLI & TUI powered by mbus-gateway
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# gateway.toml — Example configuration for modbus-gateway
# Run with: modbus-gateway run --config gateway.toml

[general]
log_level = "info"   # trace | debug | info | warn | error
tui = true           # false → headless mode, structured logs to stderr

# ── Optional traffic capture ────────────────────────────────────────────────
[pcap]
enabled = true
path = "./traffic.pcap"

[csv]
enabled = true
path = "./traffic.csv"

# ── Upstream Listeners ──────────────────────────────────────────────────────

[[upstream]]
type = "tcp"
bind = "0.0.0.0:5020" # Bind to 5020 to avoid permission issues with low ports like 502

[[upstream]]
type = "websocket"
bind = "0.0.0.0:8502"
idle_timeout_secs = 30
max_sessions = 64
require_subprotocol = true

# ── Downstream Targets ──────────────────────────────────────────────────────

# [[downstream]]
# name = "tcp-slave"
# type = "tcp"
# address = "127.0.0.1:502" # localhost 502

[[downstream]]
name = "serial-slave"
type = "serial"
port = "/dev/cu.usbserial-A1010CA6"   # serial port /dev/cu.usbserial-A1010CA6. /dev/cu.usbmodem142203
baud_rate = 115200                    # <-- Match your slave's baudrate (e.g. 9600, 19200, 115200)
data_bits = 8                         # <-- Match your slave's data bits (typically 8)
parity = "none"                       # <-- Match your slave's parity ("none", "even", "odd")
stop_bits = 1                         # <-- Match your slave's stop bits (typically 1 or 2)
response_timeout_ms = 2000            # Wait up to 2 seconds for a response

# ── Routing Rules ───────────────────────────────────────────────────────────

[[route]]
type = "unit"
unit_id = 1
downstream = "serial-slave"

# [[route]]
# type = "unit"
# unit_id = 10
# downstream = "tcp-slave"