Digital Modules
3-63
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
3.20.1 Parameters of digital output module SM 322 DO 16 x UC24/48 V
Parameter assignment
Table 3-14 and Table 3-15 show the data record numbers for static and dynamic
parameters.
Table 3-14 Data record no. 0 (static parameters):
Parameters
Comments
Enable diagnostics Enabling an interrupt when the module fails
because of an operation code error, a hardware
fault or a voltage error.
Table 3-15 Data record no. 1 (dynamic parameters):
Parameters
Comments
Behavior on CPU STOP
Hold last value
Substitute value output
Substitute value
Substitute value Each bit corresponds to an output.
This module supports failure state/substitute value outputs when the CPU changes
from RUN to STOP.
Status display
Each output of this module has a green LED to indicate the status of the relay.
There is also a red LED (SF) that indicates the diagnostics status of the module.
Diagnostics, troubleshooting
Diagnostic data is assigned in accordance with the following technical
specifications.
In the additional interrupt information, the four system diagnostics data bytes can
be read as data record 0 or in the first 4 bytes of data record 1.
Structure of the data record
The structure of data record 1 is as specified in Table 3-16.
To Next Page
Loading...
Need help?
General
