594/641 Bosch Rexroth AG | Tightening Technology 3 608 878 300
System 350 | 3 608 878 300/2019-03
IMpnio2 IMpnio2 is supported as of version V2.500 of the Rexroth Tightening System 350.
This parameter dialog contains three index cards that may be selected in the group Profinet IO Set up
interface:
• I/O and data
• Configuration
• Station information
Index card: I/O and data
No settings can be made in the Configured ranges field: The grayed out fields cannot be edited. The
parameters displayed in this field depend on the selected number of I/O points.
Input and output range mapping
In IMpnio, the cyclical process data between tightening system and communication partner IMpnio2 is
mapped within max. 64 I/O modules.
The I/O modules are mapped within the Profinet configurator. Starting with the output modules, the
highest module width is "filled" first, followed by the respectively next lower applicable modules.
The number of configured I/O modules at the communication partner (PLC) must correspond to the
setting in "Tightening channel configuration" / "KE configuration" in the BS350 because, otherwise, data
cannot be exchanged between the communication partner (PLC) and the tightening system.
Table 7–29: Settings in BS350 for IMpnio2 - I/O and data
Element Description
Number of I points Number of control signals to be processed via the PROFINET interface. Value range
0 to 512 input signals (0 to 64 bytes)
Number of O points Number of control signals to be processed via the PROFINET interface. Value range
0 to 512 output signals (0 to 64 bytes)
Receive data Memory location for receiving the ID code, max. 256 bytes at 0 bytes for I points
Send data Memory location for sending results, max. 256 bytes at 0 bytes for O points
Receive IL data Memory location for receiving IL data, max. 256 bytes at 0 bytes for I points
These data are processed using the IL function block ControlFieldbus.
Send IL data Memory location for sending of IL data, max. 256 bytes at 0 bytes for O points
These data are processed using the IL function block ControlFieldbus.
Example Data width in tightening system of 53 bytes I and 100 bytes O:
• A data width of 53 bytes in the input range of the tightening system correspond to the same width
in the output range of the PLC.
• A data width of 100 bytes in the output range of the tightening system correspond to the same
width in the input range of the PLC.
Respectively, the following applies for the number and mapping of I/O modules in the PLC
• O module setting: 6 x 8-byte module + 1 x 4-byte module + 1 x 1-byte module
• I module setting: 12 x 8-byte module + 1 x 4-byte module
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