[Unit]
Description=Modbus TCP to Modbus RTU (RS-232/485) gateway.
Requires=network.target

[Service]
Type=simple
ExecStart=/usr/local/bin/%p -p /dev/%i -s 9600 -m 8N1 -P 502 -d -v2
Restart=on-failure
RestartSec=1
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target