Metrohm 796 Titroprocessor - Manual (Page 204)

8.12 CASE sequences
796 Titroprocessor, Instructions for use 198 198
Examples:
CASE R1>98
(result R1 must be larger than 98)
CASE CM>=200
(last value must be greater than/equal to 200)
CASE EF1=1
(endpoint flag 1 must be set, EP found)
CASE SS<>0
(weight must not be zero)
CASE SS>50 AND SS<100
(weight between 50 and 100)
CASE R1<90 OR EF1=0
(result smaller than 90 or no endpoint)
CASE with input lines
For more complex automation systems the status of the input lines of the
remote connection can be set as the condition for a CASE command.
Example:
(CASE StateA=00000000
The condition of this expression has been met when all input lines ( Input 0
… 7) of the remote connection on the rear panel of the Titroprocessor are
inactive.
The possible status of each line can be queried as follows:
0 line is inactive (“high“ level)
1 line is active (“low“ level)
∗∗ line status as required
The addresses of the remote connection sockets are:
StateA remote socket of the Titroprocessor
State1 „ of 1st sample changer (717)
State2 „ of 2nd sample changer (717)
The operators:
= equal conditions
<> unequal conditions
Example:
(CASE State1=*******1
This means that the CASE sequence will be carried out if input line
0 of the 1st sample changer is active. No other input lines will be
queried.
Input line 7 Input line 0