Emerson Process Management MICRO MOTION 2400S - Manual (Page 121)

Configuration and Use Manual 113
Troubleshooting
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Compensation
If the transmitter is communicating via the service port but not via DeviceNet, if you are experiencing
intermittent DeviceNet communications, or if the transmitter appears to be operating normally but you
cannot establish a DeviceNet connection:
1. Verify the DeviceNet node address and baud rate for the transmitter. If necessary, change their
values using the digital communications hardware switches on the user interface (see Sections
8.10.1 and 8.10.2), and retry the connection using the new digital communications parameters.
2. Check the DeviceNet cable and connector as described in Section 11.7.1.
3. A variety of network issues can cause communications problems (e.g., bus errors, bus traffic,
too many nodes, insufficient power, shield voltage problems, or flat cable shorts). Follow your
site’s standard procedures for diagnosing and correcting these problems.
11.6 Checking the communication device
Ensure that your communication device is compatible with your transmitter.
ProLink II
ProLink II v2.5 or later is required. To check the version of ProLink II:
1. Start ProLink II.
2. Click Help > About ProLink .
Pocket ProLink
Pocket ProLink v1.3 or later is required. To check the version of Pocket ProLink:
1. Start Pocket ProLink.
2. Tap the Information icon (the question mark) at the bottom of the main screen.
DeviceNet tool
The Model 2400S DN transmitter is compatible with all DeviceNet tools. Check that your DeviceNet
tool is correctly configured and can make a connection to other devices on the network.
11.7 Diagnosing wiring problems
Use the procedures in this section to check the transmitter installation for wiring problems.
11.7.1 Checking the DeviceNet cable and connector
To check the DeviceNet cable and connector:
1. Follow appropriate procedures to ensure that the process of checking the DeviceNet cable and
connector does not interfere with existing measurement and control loops.
2. Disconnect the DeviceNet cable from the connector on the transmitter. See Figure 11-1.
WARNING
Removing the transmitter housing cover in explosive atmospheres while the
device is powered can subject the transmitter to environmental conditions
that can cause an explosion.
Before removing the transmitter housing cover in explosive atmospheres, be sure
to remove power from the device and wait five minutes.