IKA LR 1000 basic - Command Set and Watchdog Function; NAMUR Command Reference; Watchdog Functionality

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Commands:
NAMUR Commands Function
IN_NAME Input description name
IN_PV_X
X=1;2;3;4;
Reading the real value
IN_SOFTWARE Input software ID number date, version
IN_SP_X
X=1;2;3;4;6;
Reading the set rated value
IN_TYPE Input laboratory unit ID
OUT_NAME Output description name. (Max. 10 characters, default: LR 1000)
OUT_SP_12@n Setting the WD safety temperature with the echo of the set value
OUT_SP_42@n Setting the WD safety speed with the echo of the set value
OUT_SP_X n
X=1;2;4;6
Setting the rated value to n
OUT_WD1@m Watchdog mode 1: When a WD1 event occurs, the heating and Stirring functions are shut
down and message PC 1 is displayed. Set the watchdog time to m (20...1500) seconds, with
echo of the watchdog time. This instruction starts the watchdog function and must be sent
within the set watchdog time.
OUT_WD2@m Watchdog mode 2: When a WD2 event occurs, the speed setpoint will be set to the WD safety
setpoint speed and the temperature setpoint will be set to the WD safety setpoint temperature.
The PC 2 warning is displayed. The WD2 event can be reset with OUT_WD2@0-resetting also
blocks the watchdog function. Set the watchdog time to m (20...1500) seconds, with echo of
the watchdog time. This command starts the watchdog function and must be sent within the
set watchdog time.
RESET Switching off the instrument function.
START_X
X=1;2;4
Starting the instrument’s (remote) function
STATUS Display of status
1S: mode of operation A
2S: mode of operation B
3S: mode of operation C
S0: manual operation without fault
S1: Automatic operation Start (without fault)
S2: Automatic operation Start (without fault)
<0: error code: (-1)
- 1: error 1
- ... (see table)
-31: error 31
-83:wrong parity
-84: unknown instruction
-85:wrong instruction sequence
-86: invalid rated value
-87: not sucient storage space
STOP_X
X=1;2;4
Switching off the instrument - (remote) function
Variables set with OUT_SP_X are maintained.
“Watchdog” function, monitoring the serial data flow
The following applies to situations where the watchdog function is enabled (see Namur instructions). If no new transmis-
sions of these commands from the PC take place within the preset watchdog time, the heating and shaking functions will
be shutdown according to the watchdog mode selected or will be controlled using the preset setpoints. An operating
system crash, a PC power failure or a fault in the connecting cable to the instrument can cause an interruption in data
transmission.
“Watchdog”– Mode 1
If an interruption in data transmission occurs which is longer than the preset watchdog time, the heating and shaking func-
tions will be shut down and the error message PC 1 will be displayed.