Emerson Process Management 2400S manual 7.4.2Using the network LED, 7.5Viewing transmitter status

Using the Transmitter

Table 7-3Module LED states, definitions, and recommendations

Module LED state	Definition	Recommendations
Off	No power	Check the connection to the DeviceNet network.
Solid green	No processor faults	No action required.
Flashing green	Needs DeviceNet configuration;	Indicates an A006 alarm. Characterization
	may be in Standby state	parameters are missing. See Section 6.2.
Solid red	Non-recoverable fault	Power cycle the transmitter. If condition does not
		clear, call Micro Motion customer service.
Flashing red	Recoverable fault	Check for any status alarms.
Flashing red/green	Device in self-test	Wait until self-test is complete.
		Check the Identity Object (0x01) for device states.

7.4.2Using the network LED

The behavior of the network LED is standard, and is defined by the DeviceNet protocol. Table 7-4lists the different states of the network LED and defines each state.

Table 7-4Network LED states, definitions, and recommendations

Network LED state	Definition	Recommendations
Off	Device not online	The device is not connected to the network.(1) Check
		the wiring if this LED is lit.
Solid green	Device online and connected	No action required.
Flashing green	Device online but not connected	The device is connected to the network, but has not
		been allocated by a host. No action required.
Solid red	Critical link failure	The most common cause is duplicate MAC IDs
		(node addresses) on the network. Check for
		duplicate MAC IDs.
		Other causes include incorrect baud rate setting or
		other network failure.
Flashing red	Connection timeout	Power cycle the device, or release and re-allocate
		the device from the DeviceNet master.
		If desired, increase the timeout value (Expected
		Packet Rate) in the DeviceNet Object (0x03).
Flashing red/green	Communication faulted state	Not implemented in the Model 2400S DN transmitter.

(1)If the transmitter is the only device on the network, and there is no host on the network, this is the expected LED state, and no action is required.

7.5Viewing transmitter status

You can view transmitter status using the status LED, ProLink II, or a DeviceNet tool. Depending on the method chosen, different information is displayed.

7.5.1Using the status LED

The status LED shows transmitter status as described in Table 7-5.Note that the status LED does not report event status or alarm status for alarms with severity level set to Ignore (see Section 8.8).

42 Micro Motion® Model 2400S Transmitters for DeviceNet™