Solid State Cooling Systems THERMOCUBE II - Page 26

THERMOCUBE II 200-650W THERMOELECTRIC CHILLER MANUAL 52-14790-1
SOLID STATE COOLING SYSTEMS, 167 MYERS CORNERS ROAD, WAPPINGERS FALLS, NY 12590 25
TELEPHONE: (845) 296-1300, FAX: (845) 296-1303, WEB: WWW.SSCOOLING.COM VERSION M2
7.2.4 RS-232 ASCII Communications Protocol
Table 8 ASCII RS-232 Commands
PARAMETER
GET Data
Command
Response
PUT Data
Command
Response
Show all parameters
(see below page for details)
GETSET2
TEMP, SETTEMP,
PUMPTEMP,
PWM?, FANPWM,
TLL, STAT1A,
FLTS1A
Show chiller identification
information
IDN
Product Name, Model#,
Software Number &
Revision, Serial Number
Put chiller in LOCAL mode
LOCAL
Chiller: run, stop (Standby)
RUN?
RUNNING or
STOPPED
RUN, STOP
RTD temp
TEMP?
(-)XX.X
1
Set-point Temperature
SETTEMP?
(-)XX.X
1
SETTEMP
(-)XX.X
Temperature Alarm width (+/-)
WIDTH?
XX.X
WIDTH
XX.X
RTD offset
RTDOFFSET?
(-)XX.X
1
RTDOFFSET
(-)XX.X
Display backlight on/off
-
BLON, BLOFF
Pump temperature
PUMPTEMP?
(-)XX.X
1
Actual TE PWM %
PWM?
(-)XX.X
1
Status word 1 (5 ASCII bytes)
STAT1A?
0 - 65535
Faults word 1 (5 ASCII bytes)
FLTS1A?
0 - 65535
Reset All Alarms and Restart
RESTART
Notes: 1) A minus symbol, - , will precede negative temperature values or PWM% when cooling.
2) The RTDOFFSET sets the OFFSET parameter described in section 5.2 page 14.
GETSET2 parameters: GETSET2 returns the following data w/o identifying prefix names.
Note: All data returned is in ASCII
• Cr defined at “carriage return” or 0D
hex
• ETX defined as “end-of-text” or 03
hex
Data
Description
Format
Units
Range
TEMP<Cr>
Coolant Temperature
XX.X
°C
-5.0 – 65.0
SETTEMP<Cr>
Set Point Temperature
XX.X
°C
-5.0 – 45.0
PUMPTEMP<Cr>
Pump Temperature
XX.X
°C
0.0 – 50.0
PWM<Cr>
%PWM
XX.X
%
0 – 98.0
FANPWM<Cr>
%PWM
XX.X
%
40-100
TLL<Cr>
Tank Lev Low
XXXX
none
0 - 4096
STAT1A<Cr>
Status bits
XXXXX
none
0 - 65535
FLTS1A<Cr>
Fault bits
XXXXX
none
0 - 65535
<ETX>
ASCII “end of text”, 03
hex
03
n/a
03
Example: Running, remote mode, ready, coolant temp 22.9°C, set-point 23.0°C, pump temp 17.0°C,
76.3% cooling, Fan Speed 69.2%, tank level low = 119, status: running in remote mode within alarm
range, faults: none
22.9<Cr>23.0<Cr>17.0<Cr>-76.3<Cr>69.2<Cr>119<Cr>7<Cr>0<Cr><ETX>