Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-172
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Status, interrupts, diagnostics
Interrupts
• Diagnostic interrupt Programmable
Diagnostic functions Programmable
• Group error display Red LED (SF)
• Diagnostic information
readable
Possible
Substitute value can be applied Yes, programmable
Data for Selecting an Actuator
Output ranges (rated values)
• Voltage ±10 V
0 to 10 V
1 to 5 V
• Current ±20 mA
0 to 20 mA
4 to 20 mA
Load resistance (in the nominal
range of the output)
• For voltage outputs
– capacitive load
min. 1 kΩ
max. 1 µF
• For current outputs
– Inductive load
max. 500 Ω
max. 1 mH
Voltage outputs
• Short-circuit protection
• Short-circuit current
Yes
max. 40 mA
Current outputs
• No-load voltage max. 18 V
Destruction limit against
voltages/currents applied from
outside
• Voltage at outputs to M
ANA
max. 15 V continuous
75 VDC for no more than
0.1 s
(pulse duty factor 1 : 20)
• Current max. 50 mA DC
Connection of actuators
• For voltage output
– Four-conductor
connection (measuring
circuit)
Possible
• For current output
– Two-conductor
connection
Possible
4.27.1 Synchronicity
Characteristics
Reproducible (i.e. same length) reaction times are achieved with the SIMATIC with
an equidistant DP bus cycle and the synchronization of the following free running
single cycles:
• Free running of the user program. The length of the cycle time can vary due to
acyclic program branching.
• Free running, variable DP cycle at the PROFIBUS subnetwork
• Free running cycle at the DP-Slave back plane bus.
• Free running cycle during the signal conditioning and conversion in the
electronic modules of the DP-Slave.
In the case of equidistance the DP cycle runs in phase and with the same length.
In this cycle the processing levels of a CPU (OB 61 to OB 64) and the
synchronous peripheral are synchronized. The I/O data are therefore transferred at
defined and consistent time intervals (clock synchronicity).
Requirements
• The DP-Master and DP-Slave must support the synchronicity. They require
STEP 7 from Version 5.2.

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)