TD350 Series VFD Extension cards
-305-
A.6.2 PROFIBUS-DP communication card (EC-TX503)
CN1 is a 9-pin D-type connector, as shown in the following figure.
Isolated power supply of 5 V DC
PROFIBUS cable shielding line
+5V and GND_BUS are bus terminators. Some devices, such as the optical transceiver (RS485),
may need to obtain power through these pins.
On some devices, the transmission and receiving directions are determined by RTS. In normal
applications, only A-Line, B-Line, and the shield layer need to be used.
Indicator definition
On: The extension card is establishing a connection with
the control board.
Blinks periodically: The extension card is properly
connected to the control board (the period is 1s, on for
0.5s, and off for the other 0.5s).
Off: The extension card is disconnected from the control
To Next Page
Loading...
