647C
4. Remote Control
39
xxxx = 0..9999
IA R
LD xxxx
xxxx = 0..9999
LD R
MO c m [i]
c = 1..8
m = 0
m = 1
m = 2
m = 3
m = 4
m = 9
i = 1..8
MO c R
integral action in 10 ms
check for PID parameter integ. act.,
result: xxxxx
enter PID parameter, lead
lead in 10 ms
check for PID parameter lead, result: xxxxx
enter mode (extended command)
channel
mode = independent
mode = slave
mode = extern
mode = PCS
mode = PID (PID extension)
mode = test
mode = mode index, number of master channel
(for m = 1 only)
Check mode, result: m [I]
Contact MKS Instruments if you have questions concerning the 147B syntax in case of using 647C
to emulate a type 147B.
4.4 Response Syntax
The 647C typically responses with an ASCII integer value, terminated with <cr> and <nl> and new
line. If no result value is available also an empty response (<cr> <nl>) is possible.
If an error has been detected in the command string, an error message is sent before the
acknowledge signal. In this case the command has not been executed.
v1, v2
E
ec
[ {v1 [v2]} | {E ec} ] <cr> <nl>
= result values
= indicator for an error
= error code
0 = Chnnel error:
A invalid channel number was specified in the
command or the channel number is missing.
1 = Unknown Command:
A command has been transmitted which is unknown
to the 647C.
2 = Syntax error:
Only one character has been sent instead of
the expected 2 byte command.
3 = Invalid expression:
The command parameter does not have decimal
form, or invalid characters were found
within the parameter (e.g. 100.3: the decimal
point is an invalid character).
4 = Invalid value:
The transmitted parameter is outside the
parameter range (e.g. 1200 is outside the range
of a set point)