Siemens M7-400 用户手册

5-65

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

A prerequisite for detecting the errors indicated by programmable diagnostic
messages is that you must have assigned parameters to the analog module
accordingly in STEP 7.

Table 5-47 Diagnostics Messages of the Analog Input Modules, Causes of Errors and Remedial

Measures 

Module malfunction

An error detected by the module
has occurred

-

Internal malfunction

The module has detected an error
within the programmable controller

-

External malfunction

The module has detected an error
outside the programmable controller

-

There is a channel
error 

Indicates that only certain channels
are faulty

-

No external auxiliary
voltage

Load voltage to supply the 2-wire
transmitter is missing on terminals
L+ and M

Feed supply L+

No front connector

Jumper between connections 1 and
2 in the front connector missing

Install jumper

Parameters have not
been assigned to the
module

The module requires the information
as to whether it should work with
system default parameters or with
your parameters

Message queued after power-on until
parameter transmission by the CPU has
been completed; parameterize the
module, as required

Wrong parameters

A parameter or combination of
parameters is incorrect;
impermissible measurement range,
for example

Reassign module parameter

Channel information
available

Channel error present; the module
can supply additional channel
information

-

Measuring range
module
incorrect/missing

One or more measuring range
modules is missing or incorrectly
inserted

Insert the measuring range modules on the
module according to the parameter
assignment of the type of measurement
and the measurement range

STOP operating mode

Module not parameterized and the
first module cycle not completed

If a reboot of the CPU all the digitized
analog values are in the intermediate
memory, this message is reset