36 DataMan 60 Quick Reference Guide
DataMan 60 Quick Reference Guide 37
You can connect multiple DataMan 60 readers to a single PC (or other device
equipped with a serial port) using a multi-port connection.
A multi-port connection creates a daisy-chain of readers. Each reader receives
serial data from the previous reader and transmits it to the next reader. When
a reader transmits data, it is passed through each of the readers in the chain
between it and the PC.
Because of the large number of possible configurations, Cognex does not
supply cabling for multi-port DataMan 60 connections. Instead, you must
construct your own cable that meets the requirements of your system
configuration.
The cable must provide a DB-9 connector for each DataMan 60 serial cable and
a DB-9 connector for the PC serial port. Each DB-9 connector must provide Tx
Multi-Port Connections
2
3
5
5
3
2
5
3
2
5
3
2
DataMan 60
2: Tx Data
3: Rx Data
5: GND
2: Rx Data
3: Tx Data
5: GND
PC
DataMan 60
DataMan 60
Data, Rx Data, and ground. The Tx Data and Rx Data pins on adjacent
connectors must be connected to provide the multi-port connection.
The following diagram shows how to create a multi-port cable for a
3-reader system:
