Led Message Codes - Graco 26C266 Manual

Problem
The radio seems only partially
powered.
The radio won't enter Binding
mode.

LED Message Codes

Solid or flashing LEDs mean different things depending on whether the device is a gateway, node, or remote I/O
Modbus slave.
LED 1
Solid green
Flashing green
Flashing red
3A6715B
The ribbon cable has been
unplugged from the radio board.
The ribbon cable was plugged in
incorrectly and missed a row of
pins.
Power was not disconnected before
changing the DIP switch positions.
LED 2
Gateway, Remote I/O: Power is on
Node: Good radio communication link
Flashing amber Gateway, Remote I/O: Active Modbus communication
Flashing red Device error. If the LCD also reports BAD EE, contact your Graco
representative for replacement.
Flashing red Gateway, Remote I/O: Modbus communication error
For a GatewayPro system, a Modbus communications error indicates a
communications problem internal to the GatewayPro.
Solutions:
1. The default communications settings for the RS485 port are: 1 start
bit, 8 data bits, no parity, 1 stop bit, and 19.2k baud. The DX80
Gateway uses Modbus RTU protocol for all communications.
Supported Modbus function codes are 3, 6, and 16.
2. Verify the DX80 model supports RS485 serial communications.
3. RS485 termination or biasing is not supplied on the Gateway and
should be provided externally to the DX80. (Termination is not
required by the Gateway, proper biasing of the serial lines is
required.)
4. Bad connection or bad cable.
Cause
Definition/Solution
Solution
Verify the ribbon cable is fully seated and
that it has been plugged into all pins.
Plug in the ribbon cable taking care that all
pins are aligned correctly.
Cycle power to the device so the device
can register the DIP switch changes. For
devices with an integrated battery, cycle the
power by removing the battery for one
minute.
Troubleshooting
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