Optional Serial Port; Serial Port Installation; Serial Communication Port J13; Rs 232 Communication Description - Varian Turbo-V 3KT Instruction Manual

OPTIONAL SERIAL PORT

The Controller can be read when set in the
Front/Remote mode, (read window only enabled), while
it can be written to and read when set in the Serial
mode (write window enabled).

Serial Port Installation

An optional RS 485 kit is available for both models.
To install it, proceed as follows:
•
Switch off the power and disconnect the power
cord.
•
Unscrew the cover screws and remove the cover.
•
On rear panel, remove the connector plate, and
then secure connectors J13 to the frame using the
turrets provided.
•
On rear panel, remove the fixing turrets of
connectors B and C and then remove the controller.
•
Attach the interface board connector to connector
P6 on the controller and then secure it in place
using screw A (3x6), which is not provided.
•
Insert the flat cable through the rear panel and plug
it into the socket P1 located on the Interface board.
•
Restore the main board into its original position.
•
Install and tighten the connector screws and turrets.
•
Replace the cover.
P6
A
Serial port connector installation

Serial Communication Port J13

Communication serial port connections and mini- mum
connection configuration are shown in the following
figures. The communication port mating connector is
supplied with the RS 232 PCB (AMP/Cannon or
equivalent 9-pin "D" type male connector). The external
cable (not supplied) between the host computer and
the controller does not require crossed wires so that
signals are connected correctly. For example, the
Transmit data signal from controller (pin 2) must be
connected to the host computer's Receive data line (pin
2) and vice versa. Consult the host computer's
instruction manual for its serial port connections.
Varian cannot guarantee
regulations for radiated emissions unless all external
wiring is shielded, with the shield being terminated to
the metal shroud on the O-subconnector. The cable
should be secured to the connector with screws.
NOTE
B
C
NOTE
compliance with
RS 232 Communication Descriptions
Communication RS 232 serial port connections
Transmission Channel Characteristics
levels:
baud rate:
character length:
parity:
stop bit:
protocoll:
In this case the value to be assigned to the ADDRESS
field must be 80 hex (for RS 232).

RS 485 Communication Description

J1 3
Communication RS 485 serial port connections
Transmission Channel Characteristics
levels:
baud rate:
character length:
parity:
stop bit:
protocoll:
max. devices:

Message Structure

(request and answer have the same format)
The master system (PC) starts every session sending
the following message to the slave units connected:
<STX> / <ADDR> + <WINDOW> + <COMMAND> +
<DATA> + <ETX> + <CRC>
FCC
76
TECHNICAL INFORMATION
RS 232
9600/4800/2400/1200/600
programmable
8 bits
none
1 bit
master (PC) / slave (converter)
RS 485
9600/4800/2400/1200/600
programmable
8 bits
none
1 bit
master (PC) / slave (converter)
32
87-900-988-01 (B)