Device configuration
6.8 Configuring the parameters of the modules
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
177
Configuring the parameters of the modules
To configure the operational parameters for the modules, select the module in the Device
view and use the "Properties" tab of the inspector window to configure the parameters for the
module.
Configuring a signal module (SM) or a signal board (SB)
The device configuration for signal modules and signal boards provides the means to
configure the following:
● Digital I/O: You can configure inputs for rising-edge detection or falling-edge detection
(associating each with an event and hardware interrupt) or for "pulse catch" (to stay on
after a momentary pulse) through the next update of the input process image. Outputs
can use a freeze or substitute value.
● Analog I/O: For individual inputs, configure parameters, such as measurement type
(voltage or current), range and smoothing, and to enable underflow or overflow
diagnostics. Analog outputs provide parameters such as output type (voltage or current)
and for diagnostics, such as short circuit (for voltage outputs) or upper/lower limit
diagnostics. You do not configure ranges of analog inputs and outputs in engineering
units on the Properties dialog. You must handle this in your program logic as described in
the topic "Processing of analog values (Page 123)".
● I/O addresses: You configure the start address for the set of inputs and outputs of the
module. You can also assign the inputs and outputs to a process image partition (PIP0,
PIP1, PIP2, PIP3, PIP4) or to automatically update, or to use no process image partition.
See "Execution of the user program" (Page 83) for an explanation of the process image
and process image partitions.
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