Chapter 9 Expansion Module 234
Connect with electrical source
Input 24VDC
1
+
-
24V
2
①-1A quick-blowing fuse, circuit-breaker or circuit protector.
②-Surge absorber.
Connection with Profibus Net
Using 9-hole pin to connect with PROFIBUS DP bus, please use the regulated pin and cable.
Ports assign:
NO. name description
1 reserved
2 reserved
3 RxD/TxD-P (B- Line) Send/receive data (positive)
4 reserved
5 DGND (2M) Digital GND
6 VP(2 P5) +5V DC (supply bus expansion)
7 reserved
8 RxD/TxD-N (A-Line) Send/receive data (negative)
9 reserved
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