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Chapter 4 | Connection diagrams - RS232 communication interface
RS232 communication interface
MASTER unit
Connector B
11
RS232 GND
12
RS232 Rx
13
RS232 Tx
14
GND
Rx
Tx
5 4 3 2 1
DB9F-DB9M pin-to-pin
RS232 9-pin D-sub female
The RS232 communication port on the MASTER-unit is used as the main communication port between the service
computer and the control systems. A 9-pin D-sub female connector should be mounted in the machine for this purpose. A straight serial cable (DB9F-DB9M pin-to-pin) is used to connect to the service computer. This port is used
for the all the normal service work, for downloading the application software, parameters, terminal font/menu-data
and for system trouble shooting and logging of I/O-status.
The RS232 communication ports on the other control units in the system (Crane, Expansion, Terminal and Joystick
H5-S50) are used for advanced system work only and does not have to have a permament connection to a RS232
D-sub.
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CANmaster Technical Data & Installation - User Manual