II - DCE FEL ČVUT v Praze

3.6.3 Parameters of Analog Modules
Introduction
Parameterization
Configurable
characteristics
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04
This section contains a summary of the analog modules and their parameters.
The parameters for the analog modules are set in STEP7. These settings must
then be transferred in STOP mode to the CPU. During the status change from
STOP RUN, the CPU then transfers the parameters to the relevant analog
modules.
Alternatively, you can also change several parameters in the user program
with SFC 55. These parameters are specified in Appendix A of the Reference
Manual S7-300, M7-300 Modules (see /71/) or in the Tables 3-21 to 3-23.
With the SFCs 56 and 57, you transfer parameters set with STEP 7 in RUN
mode of the CPU to the analog module (see /235/).
The parameters are subdivided as follows for the 2 parameterization
alternatives:
Static parameters and
Dynamic parameters
The table below shows the characteristics of static and dynamic parameters.
Parameter Set with CPU status
Static PG STOP
Dynamic PG STOP
SFC 55 in user program RUN
SIMATIC S7 Ex Analog Modules
The characteristics of the analog modules can be parameterized in STEP7
with the following parameter blocks:
For input channels
– Basic settings (enables)
– Limits (triggers for hardware interrupt)
– Diagnostics
– Measurement
For output channels
– Basic settings
– Diagnostics
– Default values
– Output
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