beautypg.com

2 access to parameter data, Access to parameter data, Devicenet communication – Lenze I/O system 1000 System Manual User Manual

Page 561

background image

DeviceNet communication

Access to the I/O system 1000

Access to parameter data

11

l

561

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.