Component Description
<Signature> The signature specifies whether the value is an input or an
output value, and how many words or bytes the value contains.
The signature has the following structure: <direction><num‐
ber><unit><direction>
•
i: for an input value to the controller
•
o: for an output value from the controller to the device
<Unit>
•
b: Bytes
•
w: Word
Example 5-Distance/i2w, Preset Dyn/o2w
Module 5 consists of two values:
•
Distance/i2w: Input value to the controller consisting of 2 words with the designa‐
tion Distance
•
Preset Dyn/o2w: Output value from controller to the device consisting of 2 words
with the designation Preset Dyn
Example 13-Temp/i1b, Level/i2b, Hrs/i2b
Module 13 consists of three values:
•
Temp/i1b: Input value to the controller consisting of 1 byte with the designation
Temp (temperature)
•
Level/i2b: Input value to the controller consisting of 2 bytes with the designation
Level
•
Hrs/i2b: Input values to the controller consisting of 2 bytes with the designation
Hrs (operating hours counter)
Definitions
•
A byte is an 8-bit value.
•
A word is a 16-bit value.
•
Consistency means that all values within a module are updated simultaneously.
•
An input value is transferred cyclically from the device to the controller (PLC).
•
An output value is transferred cyclically from the controller (PLC) to the device.
•
A configuration value is transferred from the controller to the device every time the
device is connected. For example, when switching on the PROFINET IO device or
the controller or after the connection has been interrupted.
Relative address specification
For input and/or output modules, the relative addresses of the input or output values
are specified in the module descriptions see "Module description", page 58 in one of
the following formats:
•
<byte>, e.g., Rel. Addr. 0: byte 0
•
<byte>.<bit position within the entry> e.g., Rel. Addr. 0.31: byte 0, bit 31
•
<byte>. <start bit position ... end bit position within an entry>, e.g., Rel. Addr.
0.0...0.29: byte 0, bit 0...29
PROFINET IO INTERFACE 10
8015069/19H9/2021-10-15 | SICK O P E R A T I N G I N S T R U C T I O N S | DL100 Pro PROFINET
55
Subject to change without notice
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