01/2007
8.5 DP slave: I/O Module PP72/48
8-194
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
Dialog box: PROFIBUS properties Interface PP input/output
Tab card: Parameter
Address: <PROFIBUS address>
Button: ”Properties...”
Dialog box: Properties – PROFIBUS
Tab card: Network settings
Transmission rate: 12 Mbaud
Profile: DP
OK
OK
8.5.4 Setting the I/O addresses
When the dialog box is closed DP slave PP72/48 is inserted into the DP master
system and the detail view of DP slave PP72/48 is displayed in the station win-
dow. Select one of the modules listed under DP slave PP72/48 (PP input/output
module) from the hardware catalog and insert it in slot 1 of the detail view.
The I/O addresses are assigned by ”HW Config” automatically and should be
changed taking into account the following supplementary conditions:
S I/O address range of the NC
For compatibility reasons and for future system expansions, the I/O ad-
dresses 256 – 271 should not be assigned.
S Selective access to inputs/outputs by the PLC
The PLC cannot directly access individual inputs/outputs of I/O addresses
>256. The input/output data must first be copied into internal flags of the
PLC with the system functions SFC14 and 15.
For the reasons above, it is recommended to assign the I/O addresses to the
range between 0 and 255.
The dialog box offers the following configurations to choose from:
1. I/O 6/9 O222 I212121
2. I/O 6/9 O411 I212121
3. I/O 6/9 O42 I41
For DP slave PP72/48, select the 1st configuration and click OK to confirm the
dialog box.
Dialog box
8 PROFIBUS DP Communication
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