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INFICON MDC-360 Thin Film Deposition Controller User Manual

Page 148

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MDC-360 DEPOSITION CONTROLLER

Power 4

String

%

Thickness 5

String

Deposition rate

4

String

Å/sec

Time to go

7

String

Seconds

Crystal health

2

String

%

Layer number

3

String

None

Rate deviation

4

String

%

Active process number

1

BCD (0-98)

Active material
number

1 BCD

(0-31)

Active sensor number

1

BCD (1-4)

Active crystal number

1

BCD (1-8)

Active source number

1

BCD (1-4)

Active pocket number

1

BCD (1-8)

Total 35 bytes

The string values are in ASCII format including decimal points or colons.

Example: To instruct the controller to send the run-time value list the computer
would send:

Chr$(255)+Chr$(254)+Chr$(1)+Chr$(30)+Chr$(0)+Chr$(225)

32. Initiate Automatic Data Logging (Code #31)

This operation allows the computer to setup the MDC-360 to automatically output
selected values to the RS232 port every 100 milliseconds. The values sent are
determined by the bit value of the message byte in the data logging instruction
message.

Byte # Bit #

Description

Length(bytes)

Format

Units

1 0

Power

4 String

%

1

Thickness

5

String

2

Deposition

rate

4

String

Å/sec

3

Time to go

7

String

Seconds

4

Crystal

health

2

String

%

5

Layer

number

3

String

None

6

Rate

deviation

4

String

%

All values are in ASCII format including decimal points or colons.

For example, to instruct the MDC to output rate and power the computer would
send the following message:

Chr$(255)+Chr$(254)+Chr$(1)+Chr$(31)+Chr$(1)+Chr$(5)+Chr$(218)

Data logging is stopped by sending the following message:

Chr$(255)+Chr$(254)+Chr$(1)+Chr$(31)+Chr$(0)+Chr$(224)

33. Internal Command

COMPUTER INTERFACE

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