Control Techniques UD70 Installation Guide

UD70/MD29 Installation Guide 6
Issue Number: 3 www.controltechniques.com
2.3 MD29AN
The MD29AN provides a dedicated RS232 programming port (Connector SK2) and
a general purpose RS485 communications port (Connector PL1). In addition, the
MD29 also has a dedicated CTNet port (PL2).
2.4 RS232 Port Connections
The pin connections for the RS232 port are given in the table below. The RS232
port can be connected to a 9 way serial port using a 9-way one-to-one ribbon cable
lead.
2.5 RS485 Port Connections
The pin connections for the RS485 port are given in the table below 0VSC is
completely isolated from the main Unidrive and Mentor II 0V.
MD29AN
PL1 SK2PL2
SK1
Pin Function Description
2 TxD Transmit line
3 RxD Receive line
50V0V
Pin Function Description
1 0VSC 0VSC Isolated 0V for serial communications link.
2 TxA /Tx Inverted transmit line
3 RxA /Rx Inverted transmit line
6 TxB Tx Transmit line
7 RxB Rx Receive line

Control Techniques UD70 Specifications

General

Brand	Control Techniques
Model	UD70
Category	Control Unit
Language	English