
Memo-Graph S 4 Wiring
Endress+Hauser 19
Relay outputs* on digital board(s):
!
Note!
The opening and closing function (= activation and deactivation of the relay coil) in case of a limit
value can be defined in the set-up “Set-up - Signal settings - Digital outputs (Relay / OC)”
4.2.5 CPU board (slot 0)
Interfaces (rear side):
Sub-D connector as per DIN 41652, socket, nine pin
!
Note!
As a rule, unoccupied connections should be left empty.
Standard interface: RS 232*
!
Note!
Please observe the correct pin assignment when connecting the rear-mounted RS 232 directly to a
PC or modem:
Digital board 1 Digital board 2
151 Relay 6, contact 1 751 Relay 12, contact 1
152 Relay 6, contact 2 752 Relay 12, contact 2
251 Relay 7, contact 1 851 Relay 13, contact 1
252 Relay 7, contact 2 852 Relay 13, contact 2
351 Relay 8, contact 1 951 Relay 14, contact 1
352 Relay 8, contact 2 952 Relay 14, contact 2
451 Relay 9, contact 1 A51 Relay 15, contact 1
452 Relay 9, contact 2 A52 Relay 15, contact 2
551 Relay 10, contact 1 B51 Relay 16, contact 1
552 Relay 10, contact 2 B52 Relay 16, contact 2
651 Relay 11, contact 1 C51 Relay 17, contact 1
652 Relay 11, contact 2 C52 Relay 17, contact 2
Pin RS 232
2 TxD
3 RxD
5 GND
Housing Screen
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