Metrohm 789 Robotic Sample Processor XL - Manual (Page 118)

3.9 The Remote interface
110 Metrohm Sample Processor, Operation
Input lines that are not of interest or for which no defined condition can
be predicted should also be masked with an asterisk (∗).
If external START (see configuration 3.2.1) is switched on then Re-
mote lines Input 7 and Input 6 will be reserved for external START and
STOP.
In order to simplify the use of Remote commands, particularly when
several devices are linked together with Metrohm cables, predefined bi-
nary patterns are available as command parameters for the commands
CTL and SCN for standard conditions (1 to 2 Titrinos, possibly with
auxiliary Dosimats, pH meter or ion meter). These are:
3.9.3 SCN command
Parameter Signal pattern Function
Ready1 *******1 waits for "ready" condition of device 1 (Titrino, Titrando)
Ready2 **1***** waits for "ready" condition of device 2
Ready* **1****1 waits for "ready" condition of devices 1 and 2
Cond ok ******1* waits for "cond ok" condition of device 1
End1 ****1*** waits for the EOD impulse from device 1 (Titrino, Ti-
trando)
End2 *1****** waits for the EOD impulse from device 2
EndMeter ***11*** waits for the EOD impulse from ion meter or pH-Meter
(stirrer 1 will be switched on during the waiting period)
Continue ***1**** waits for an impulse to continue e. g. "Sample ready"
With the parameter Ready* it is possible to scan the condition of de-
vices working in parallel. In this case the Ready line of both devices
must be statically set at the end of a determination. Devices which only
transmit a brief impulse at the end of e.g. a measurement cannot be
controlled in parallel.
3.9.4 CTL command
Parameter Signal pattern Function
INIT 00000000000000 initializes the Remote interface
START device1 *************1 starts device
1 (e.g. Titrino, Titrando, ...) * )
START device2 ********1***** starts device 2 (see above, only with multiple cable)* )
START device* ********1****1 starts devices 1 and 2 " * )
SAMPLE ready *********1**** sends a pulse for continuing a determination
START Dos1 *******1****** starts Dosimat at device 1 (Titrino via "activate")
START Dos2 *****1******** starts Dosimat at device 2 "
START Dos* *****1*1****** starts Dosimat at devices 1 and 2 "
METER Mode pH *********0001* switches ion meter or pH meter to pH measurement and
starts it
METER Mode T *********0010* switches ion meter or pH meter to temperature meas-
urement and starts it
METER Mode U *********0011*
switches ion meter or pH meter to mV measurement and
starts it