Code #31: initiate automatic data logging, Code #31: initiate automatic data logging -43 – INFICON MDC-260 Thin Film Deposition Controller User Manual
Page 181

MDC-260 DEPOSITION CONTROLLER
COMPUTER INTERFACE 11-43
Code #31: Initiate Automatic Data Logging
Description:
This operation allows the computer to setup the MDC-260 to
automatically output selected run-time values to the computer port every 100
milliseconds. The values to be sent are determined when this instruction is
issued. Each value can be selected to be sent by setting its corresponding bit = 1.
All values with a bit setting = 0 will not be sent.
The run-time values available to be sent are the same as in Code #30. The
difference is that this instruction allows you to select which values to send and
once selected, the values are sent automatically until the next “Initiate Automatic
Data Logging” instruction or the controller power is removed.
Format/Example:
• To instruct the controller to initiate automatic data logging, transmit:
Header
Interface
Address
Inst.
Code
Length
5 Data Bytes
Checksum
Dec
255 254
1
31
5
(data) (checksum)
Hex
FF FE
01
1F
05
(data) (checksum)
(data):
The 5 data bytes represent the selection bits determining what values to
send. (checksum): The checksum from the instruction code through the last data
byte.
• To instruct the controller to stop sending data, transmit:
Header
Interface
Address
Inst.
Code
Length
5 Data Bytes
Checksum
Dec
255 254
1
31
5
0, 0, 0, 0, 0
Hex
FF FE
01
1F
05
00, 00, 00,
00, 00