Metrohm 774 Oven Sample Processor - Manual (Page 103)

5.8 Remote Interface
774 Oven Sample Processor, Instructions for use 97
5.8 Remote Interface
Peripheral instruments connected such as Titrinos, Titroprocessors, Cou-
lometers etc. can be controlled via the remote interface (25-pin socket).
14 lines (Output 0–13) are available for the emission of signals.
For receiving signals (e.g. the "ready" signal of a Titrino at the end of a titra-
tion) 8 lines are provided (Input 0–7).
Pin Assignment of the Remote socket
Output 6
Output 7
Output 4
Output 2
Output 0
Output 8
Output 9
Output 10
Input 1
Input 3
Input 5
Input 7
Output 11
0 Volt
+5 Volt
Output 5
Output 3
Output 1
Output 12
Output 13
Input 0
Input 2
Input 4
Input 6
0 Volt
The +5 V supply line may by charged with 20 mA maximally.
The coupling with Metrohm instruments with the standard cable
6.2141.020 is normally resolved in the following manner:
774 Metrohm instrument │ 774 Metrohm instrument
│
Output 0 ––––––– Input 0 │ Input 0 ––––––– Output 0
Output 1 ––––––– Input 1
│
Input 1 ––––––– Output 1
Output 2 ––––––– Input 2 │ Input 2 ––––––– Output 2
Output 3 ––––––– Input 3 │ Input 3 ––––––– Output 3
Output 4 ––––––– Input 4 │ Input 4 ––––––– Output 4
Output 5 ––––––– Input 5 │ Input 5 ––––––– Output 5
Output 6 ––––––– Input 6
│
Input 6 ––––––– Output 6
Output 7 ––––––– Input 7 │ Input 7 ––––––– Output 7
Output 8 ––––––– Pin 6
Output 9 ––––––– Pin 7
Output 10 ––––––– Pin 8
Output 11 ––––––– Pin 13
Output 12 ––––––– Pin 19
Output 13 ––––––– Pin 20
Various remote cables are available to use the specific functions of the indi-
vidual instruments of the various Metrohm model lines (see page 16ff).
Metrohm also delivers special cables on request suited to the customer’s
needs, which allow complex couplings (including foreign instruments).
+5V
active = low
inactive = high
active = low
inactive = high
The Output lines 8…13
are assigned to pin 6…8, 13, 19…20.
Inputs
Outputs