GE VersaPoint IC220PBI002, User Manual

Page: 48 / 202

4-6 VersaPoint™ I/O System Profibus-DP NIU User’s Manual – August 2005 GFK-1911B
4
Setting the NIU Switches
Configure the hardware using the 1 0-position DIP switch on the NIU module.
Switches Meaning
1 to 7 Profibus Address in binary format (= 0 to 1 27 in decimal format)
Switch 1 defines the least significant bit (2
0
) and
switch 7 defines the most significant bit (2
6
).
For Module IC220PBI002: Sets the operating mode. With this switch in
the Off position, this module can directly replace module version
IC220PBI00
1 .
With this switch in the On position, this module operates in DP/V 1 mode.
The On position matches the NIU’s default configuration.
8
For Module IC220PBI00 1 : Behavior if a data error occurs in the station
(local bus error):
ON = data transmission is stopped after a number of attempts.
OFF = the station constantly attempts to start data transmission.
If DIP switch 8 is in the ON position, a POWER DOWN/POWER UP must
be executed on the NIU so that it will restart. There is no
automatic
restart after the error has been removed.
9 to 1 0
Reserved, both switches must be in the OFF position.