31
Wiring
Section 2-3
I/O Connector Type
Weidmüller B2L 3.5/26 SN SW (included in package)
Wiring Instructions
Power Connector
The Power Connector is used to connect the 24V power supply to the MC
Unit.
Connector pin
arrangement
Power Connector Type
Phoenix MSTB 2.5/3-ST-5.08 (included in package)
2-3-2
Serial Port Connections
RS-232C Connections
The MC Unit has two serial RS-232C ports for communication with external
devices.
RS-232C Interface Specifications
1
2
3
Pin
Name
Function
1
+24 V
Power Supply 24V
2
0 V
Power Supply 0V
3
FG
Frame Ground
+ 24V
0V
Item
Specifications
Electrical characteristics
Conform to EIA RS-232C
Synchronization
Start-stop synchronization (asynchronous)
Baud rate
1200 / 2400 / 4800 / 9600 / 19200 / 38400 bps
Transmission Format
Databit Length
7 or 8 bit
Stop Bit
1 or 2 bit
Parity Bit
Even/Odd/None
Transmission Mode
Point-to-point (1:1)
Pin
Symbol
Name
Port
Direction
1
-
Not used
-
2
RS-1
Request to send
1
Output
3
SD-0
Send data
0
Output
4
SG-0
Signal ground
0
-
5
RD-0
Receive data
0
Input
6
SD-1
Send data
1
Output
7
SG-1
Signal ground
1
-
8
RD-1
Receive data
1
Input
PO
R
T
0
,1
1
3
6
4
7
8 5
2