Conditions:
•This data connection with NETLink® PRO Compact can only be used together with the Siemens S7-200/S7-300 and S7-400 systems. •The Eagle device needs a copper Ethernet connection.
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S7-xxx
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ET-208 or ET/MT-3x6
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The NETLink® PRO Compact can be directly connected to the corresponding S7 terminal or be embedded in the Profibus connection. Several NETLink® PRO Compacts can be stacked.
Table, Pin assignment of the Ethernet interface:
Signal
|
Meaning
|
1
|
Tx+
|
Data sent +
|
2
|
Tx-
|
Data sent -
|
3
|
Rx+
|
Data received +
|
4
|
Rx-
|
Data received -
|
|
Table, Pin assignment of the MPI-Schnittstelle:
2
|
GND
|
Mass voltage supply (looped through)
|
3
|
RxD / TXD (positive/B)
|
Data received / sent P (positive/B)
|
5
|
DGND
|
Mass for bus termination (looped through)
|
6
|
DVCC
|
DC 5V for bus termination (looped through)
|
7
|
VCC
|
DC 24V voltage supply (looped through)
|
8
|
RxD / TXD (negative/B)
|
Data received / sent N (negative/A)
|
|
|