Detecting and Correcting Faults
6-9
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Table 6-2
Errors and corrective measures for the SM 335, continued
Bits set
Corrective measure
Error description
Module diagnostic byte 1 bit 1 AND
Module diagnostic byte 3 bit 0
Measuring range module improperly
inserted/not inserted.
Check to make sure that the
measuring range module
has been inserted correctly,
and that the measuring
range module setting con-
forms with the parameters.
Module diagnostic byte 1 bit 7 AND
Module diagnostic byte 1 bit 6
(Module diagnostic byte 1
bit 0 = ’0’ !)
Module is not initialized.
The SM 335 is using default parame-
ters (no hardware interrupts, no diag-
nostic interrupts).
Initialize the SM 335 cor-
rectly.
Module diagnostic byte 1 bit 2 AND
channel-specific diagnostic byte for
analog output x bit 0
channel-specific diagnostic byte for
analog input x bit 0
Invalid parameters in channel x.
When it detects an invalid channel-spe-
cific parameter, the SM 335 flags the
channel for which the parameter was
specified.
Initialize the SM 335 cor-
rectly.
