Handbook
November 2011 / 59-UMC0071 / Issue 01
Mercury iTC
Page 113
COMMAND REFERENCE GUIDE
Original Instructions
10.3.4.6 Addressing a control loop
To address a control loop, you must specify the temperature sensor that is associated
with the control loop:
DEV:<UID>:TEMP:LOOP
Where <UID> is a unique identifier that is allocated to each board, based on its SPI
location.
The configuration settings for a control loop are:
10.3.5 Invalid responses
Table 10-1 lists the possible responses if an invalid command is sent.
10.4 Legacy command messages
Refer to the handbook provided with a legacy instrument for information on legacy
commands.
LOOP Loop designator N/A
HTR:<ID> Heater associated with the loop Read/set UID, put 0 to unset
AUX:<ID> Auxiliary board associated with the
loop
Read/set UID, put 0 to unset
LVL:<ID> Level meter associated with the loop Read/set UID, put 0 to unset
ENAB Loop enabled (heater auto on/off) Read/set OFF, ON.
HSET Percentage heater output Read/set 0.0 to 100.0
TSET Temperature setpoint Read/set Cold limit to hot
limit
PIDT PID auto (use PID table: zone control) Read/set OFF, ON
PSET P value Read/set 0.0 to 199.9
ISET I value Read/set 0.0 to 199.9
DSET D value Read/set 0.0 to 299.9
Table 10-1 Invalid responses
Response Reason
<VERB>:INVALID The verb cannot be interpreted.
<VERB>:<NOUN>:INVALID The noun cannot be interpreted.
NOT_FOUND The UID does not exist in the system being addressed.
N/A The function does not apply to the device being addressed.
DENIED The user does not have permission to change the parameter
being addressed.
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