Maintenance
message
Error
code
Assignment Meaning / Cause Remedy
HART - non-pri‐
mary variable out
of limits
149
H
Analog input
• Incorrect parameters in the HART eld
device
• HART eld device is set to "Non-primary
variable out of range" in simulation
mode
• Incorrect measuring point
• Parameter assignment of non-primary
variable out of range
• Check the parameter as‐
signment of the HART de‐
vice
• Correct the simulation
• Check whether the correct
measuring transmitter is
connected
Carrier module or
memory in carrier
module is defec‐
tive
154
H
Module An error of the carrier module or of the
memory module on the carrier module was
detected during operation.
Replace carrier module
Terminal block
(TB) or memory in
terminal block is
defective
155
H
Module A fault of the terminal block or the memory
chip on the terminal block was detected dur‐
ing operation.
Replace terminal block
1
Response of the HART conguration changed maintenance message
If the HART eld device signals "re-parameterization" (conguration changed) in the 2nd status
byte, the module generates the maintenance message "HART conguration changed". If the
eld device withdraws the message in the 2nd status byte within a minute, the maintenance
message is also deleted again by the module. If the message in the 2nd status byte is still set after
a minute, the module then independently sends HART command 38 for resetting the message
in the eld device.
Displays, alarms and messages
7.5 Maintenance events
F-AI 8xI 2-/4-wire HART HA
74 Equipment Manual, 09/2021, A5E50557845-AA