Transmitter Does Not Communicate; Function Blocks In Out-Of-Service Mode; Zero Or Calibration Failure - Emerson Micro Motion 2700 Configuration And Use Manual

Troubleshooting
6.4

Transmitter does not communicate

If the transmitter does not appear to be communicating on the network, then:
• Make sure the PROFIBUS network has proper termination.
• Check the PROFIBUS wiring between the transmitter and the DP/PA coupler, and between the
DP/PA coupler and the host system.
• Perform the procedures under Section 6.9.4.
• Make sure the node address is set correctly. The node address is set to a default value of 126 at
the factory. See Section 2.3.
• If using a configuration tool such as Simatic PDM, check whether the transmitter shows up in
the live devices list.
• Make sure the I/O configuration is set up properly. See Section 2.5.
6.5

Function blocks in Out-of-Service mode

If all of the transmitter function blocks (AI, AO, and totalizer) are stuck in Out-of-Service mode, there
may be a fault alarm active. The status alarms that will trigger OOS mode are shown in Table 6-2.
Refer to Section 6.8 for a full description of status alarms and possible remedies.
Table 6-2 OOS-mode alarms
Alarm
A001
A002
A003
A004
A005
A008
A016
A017
A022
A023
A024
A025
6.6

Zero or calibration failure

If a zero or calibration procedure fails, the transmitter will send one or more status alarms indicating
the cause of failure. Refer to Table 6-4 for descriptions of status alarms and possible remedies.
94
Description
EPROM checksum error
RAM test error (core processor)
Sensor failure (no tube interrupt)
Temperature sensor out-of-range
Input over-range
Density over-range
Line RTD temperature out-of-range
Meter RTD temperature out-of-range
(E)EPROM configuration DB interrupt (core processor)
(E)EPROM totals corrupt (core processor)
(E)EPROM program corrupt (core processor)
Protected boot sector fault
Model 2700 Transmitter with PROFIBUS-PA