INFICON MDC-260 Thin Film Deposition Controller - Manual (Page 183)

MDC-260 DEPOSITION CONTROLLER
COMPUTER INTERFACE 11-45
Response:
• The controller will respond with the normal transmission receipt.
• Every 100 milliseconds, the controller will send a message including all of
the selected run-time values in the following format:
Header Interface
Address
Inst.
Code
Length Data
Bytes
Checksum
Dec 255 254 1 31 (length) (data) (checksum)
Hex FF FE 01 1F (length) (data) (checksum)
(length): The sum of all lengths, in bytes, of all the requested data (see table).
(data): The requested data, in ASCII characters. The data is always presented in
the order shown in the table above, with data not requested left out.
(checksum):
The checksum from the instruction code through the last data byte.
Code #32: Internal Command
Description: Instruction Code #32 is used by the software interface package and
is not designed for external interfacing.
Code #33: Set Active Source Power
Description: Instructs the controller to enter the incoming source power value
into the active source power. This command only works if the controller is in the
manual power control mode. A description of the manual power parameter list is
as follows:
Parameter Name Length (bytes) Allowable Range
Source Power 2 (0-999) units are 0.1%
Total: 2 Data Bytes
Format/Example:
• To set the active source power to 50% (500 dec = 1F4 hex), transmit:
Header Interface
Address
Inst.
Code
Length 2 Data Bytes
(Source Pwr)
Checksum
Dec 255 254 1 33 2 1 244 231
Hex FF FE 01 21 02 1 F4 E7
Response:
• The controller will respond with the normal transmission receipt.
Code #34: Internal Command
Description: Instruction Code #32 is used by the software interface package and
is not designed for external interfacing.