INFICON Cygnus Thin Film Deposition Controller - Manual (Page 111)

5 - 7
IP
N 07
4-
37
9-
P1
K
Cygnus Operating Manual
F = Cannot do now (e.g. some commands require the channel or
console to be in Ready / Stop.
L = Length Error, response could overflow the return buffer.
P = Prior command failed (if one command of a multiple command
packet fails, none of the following commands will be done, and this error
code will be returned.
Checksum. . . . . . . . . . . . . . . . . . 1 byte, sum, modulo 256, of all bytes,
including CCB, Timer, and Response
Message but not including length. Modulo
256 is the numeric value from 0 to 255
representing the modulo 256 remainder of
the sum of the values of the ASCII codes that
comprise the response.
5.4 Cygnus Communication Commands
The standard command set is structured into six categories- ECHO, HELLO,
QUERY, UPDATE, STATUS and REMOTE. Most commands require arguments. A
space is used between commands and arguments and between multiple
arguments.
The instrument uses a set of negative response codes (nrc) for commands
resulting in an error.
5.4.1 ECHO Command
The format is:
E <string>
The Echo command returns the ASCII string argument back to the sender. This
command is useful for set-up or troubleshooting.