X73 Profibus-Dp Interface - Bosch CL200 User Manual

Central Processing Unit
5–24
5.4.6

X73 PROFIBUS-DP Interface

Decentralized I/O address range
Additional characteristic data
Direct access
The PROFIBUS-DP interface on the ZE200-DP and ZE200A-DP comprises
an electrically isolated RS-485 interface and conforms to the EN 50170-2
standard. All components are designed for a baud rate of 12 Mbaud.
The X73 connector is a female DB-9. In addition to the bus signals, the inter-
face supplies an isolated 5 V power potential (VP) for feeding an external
device. The maximum permissible load on that device is 100 mA.
Pin assignment of female DB-9 connector:
Pin
Shell
3
4
5
6
8
9
.
The screen must be attached to the connector shell via a low-impe-
dance connection at both cable ends.
Inputs
Outputs
Extended inputs
Extended outputs
Channels
Max. number of slaves
Max. outputs per slave
Max. inputs per slave
Max. consistency block size
Instances of direct access to decentralized I/O are mapped to an internal
image, and will reach the decentralized periphery only during I/O status.
Signal designation Signal function
Screen Screening
-
RxD/TxD P Receive / Transmit data P
Repeater control signal P (TTL
Signal)
DGND Data reference signal
VP Feed power; 100 mA
-
RxD/TxD N Receive / Transmit data N
Repeater control signal N
(DGND)
I0 ... 23 Max. 24 bytes
O0 ... 15 Max. 16 bytes
EI0 ... 127 Max. 128 bytes
EO0 ... 127 Max. 128 bytes
32 channels w/ 58 bytes I and 58 bytes O ea.
64 DP slaves addressable
-
244 bytes
122 bytes
122 bytes
1070 072 145-102 (01.07) GB