Siemens SIMATIC S7-300 Module data Reference Manual

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.

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)