Pilz PNOZ mm0p 24VDC - Manual (Page 79)

RS232/Ethernet interfaces
Operating Manual PNOZmulti communication interfaces
1001154-EN-13
79
Information
For communication via Ethernet, the Ethernet interface must be set up in
the PNOZmulti Configurator. The procedure is described in the PNOZmulti
Configurator's online help.
Each communication is started by sending a request to the PNOZmulti. Requests are used
to receive data from the PNOZmulti or send data to the PNOZmulti :
1.
Request
The user sends a request to the PNOZmulti via the communications partner.
2. Response
The PNOZmulti sends a response to the communications partner after approx. 20 to 30
ms, confirming that the request has been received without error. Data is sent in accord-
ance with the request.
Telegram structure
The telegram used for communication has the following structure:
Byte Request Byte Response
0 0x05 0 0x05
1 0x15 1 0x15
2 0x00 2 0x00
3 Amount of usable data
+5
3 Amount of usable data +5
4 Request No. 4 Confirmation/error
5 Segment No. HB 5 Segment No. HB
6 Segment No. LB 6 Segment No. LB
7 0x00 7 Reserved
8 Usable data Byte 0 8 Usable data Byte 0
9 Usable data Byte 1 9 Usable data Byte 1
10 Usable data Byte 2 10 Usable data Byte 2
... ... ... ...
Amount of
usable data
+7
Usable data Byte n Amount of
usable data
+7
Usable data Byte n
Amount of
usable data
+8
BBC Amount of
usable data
+8
BBC
Amount of
usable data
+9
0x10 Amount of
usable data
+9
0x10
5.5