2 access to parameter data, Access to parameter data, Devicenet communication – Lenze I/O system 1000 System Manual User Manual
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DeviceNet communication
Access to the I/O system 1000
Access to parameter data
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EDSIO1000 EN 7.0
11.2.2
Access to parameter data
Your configuration tool also enables you to parameterise your I/O compound modules. For
this purpose, the DeviceNet bus coupler must be located actively at the bus.
Your configuration tool serves to parameterise your modules in string form via the
corresponding DeviceNet slot. you can also transfer the current parameters from the
modules to the configuration tool, adapt and rewrite them.
Rules for parameter setting
ƒ
Each DeviceNet must be parameterised with a string.
ƒ
Within the string, each parameter consists of a type with attached value.
ƒ
The parameters must be separated by a space.
ƒ
Only parameters written in small letters are supported.
Depending on the type, you can indicate hexadecimal, decimal or binary values as
parameters:
Type
Meaning
Value as
Example string
x
1 byte
Hexadecimal
xhh
2x
2 bytes
Hexadecimal
2xhhhh
4x
4 bytes
Hexadecimal
4xhhhhhhhh
+
1 byte
decimal positive
+ddd
2+
2 bytes
decimal positive
2+ddddd
4+
4 bytes
decimal positive
4+dddddddddd
−
1 byte
decimal negative
−ddd
2−
2 bytes
decimal negative
2−ddddd
4−
4 bytes
decimal negative
4−dddddddddd
b
1 byte
Binary
xbbbbbbbb
Example: The I/O compound module EPM−S405 has 18 bytes of parameter data. For
parameterisation with the default values, the following string occurs:
x00 x00 x00 x00 x00 x02 xC1 x02 2x7FFF 2x8000 xC1 x02 2x7FFF 2x8000
)
Note!
If the parameter data does not match the hardware structure, the DeviceNet
bus coupler changes to an error status and signalises it via its status LEDs
(
¶ 54).
Modules that have not yet been parameterised will be automatically supplied
with their default values as soon as a read access from the configuration tool
is executed.