Interrupts/diagnostic messages
6.4 Diagnostic messages
ET 200SP F-TM Count 1x1Vpp sin/cos HF (6ES7136-6CB00-0CA0)
78 Equipment Manual, V1.0, 01/2021, A5E47073911-AA
Diagnostics alarm Fault
Meaning Solution
The expected number of pulses was not
received within a given revolution, where
the revolution is determined by the mod-
ule receiving an active N signal event.
Possible causes:
• There is a faulty N signal.
• The "Pulses per revolution" configura-
tion does not match the encoder's
pulses per revolution.
• The module is configured to use the N
signal, but the encoder does not use
an N signal or there is a wire break.
There is noise on the N signal line.
• Check the N signal process wiring.
• Check the parameter is set to
match the sinusoidal cycles per
revolution.
accessible
The F-source address and F-destination
address stored in the coding element
Verify that the coding element is pre-
sent or replace the coding element.
No valid F-address availa-
ble
The electronic coding element contains
an invalid F-address.
Assign a PROFIsafe address to the F-
module.
• Impermissibly high electromagnetic
interference is present.
• The F-module has detected an internal
error and has reacted in a safety-
related manner.
• Encoder frequencies received above
250kHz. In this situation, the module
is not defective.
• Eliminate the interference. The
module must then be pulled and
plugged, or the power switched
OFF and ON.
• Ensure encoder frequencies below
200kHz and reapply power to the
module.
• Replace defective F-module.
• Impermissibly high electromagnetic
interference is present.
• The F-module has detected an internal
error and has reacted in a safety-
The minimum permissible temperature
limit has been violated.
• Operate the F-module within the
specified temperature range (see
Technical Specifications).
• Once the temperature has in-
creased and returns to the specified
range, the F-module must be re-
moved and reinserted or the power
switched OFF and ON.
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