Proface AGP3500 - 10.4 DIO HMI" - Manual (Page 41)

ST3000 Series Hardware Manual
3-10
‹ Serial Interface (COM2)
This interface is used to connect an RS-485 (MPI only) serial cable. A D-Sub 9-pin socket connector is used.
ST Connector XM3B-0942-502LX
Interfit Bracket #4-40 inch screws are used.
Recommended Cable Connector XM2A-0901
Recommended Cable Cover XM2S-0913
Recommended Jack Screw XM2Z-0073
Pin
Arrangement
Pin No.
RS-485 (MPI only)
Signal Name Direction Meaning
1 NC - -
2 NC - -
3 LINE(+)
Input/
Output
LINE(+)
4 RS(RTS) Output Request to Send
5 SG - Signal Ground
*1
*1. The SG and FG terminals are isolated.
6 5V - 5V External Output
*2 *3
*2. The 5V output for Pin # 6 is not protected against overcurrent. To prevent damage or
unit malfunctions, use only the rated current.
*3. When providing power via the Siemens Co.’s PROFIBUS connector, power cannot
be connected to the Device/PLC.
7 NC - -
8 LINE(-)
Input/
Output
LINE(-)
9 NC - -
Shell FG -
Frame Ground
*1
(Common with SG)
9
6
5
1
(ST unit side)