HEIDENHAIN ND 231 B v.2 - Manual (Page 29)

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Switching Inputs and Outputs EXT (X41)
Inputs at D-sub connection EXT (X41)
Pin Function
1, 10 0 V
2 Reset display to zero, clear error message
3 Set display to the value selected in P79
4 Ignore reference mark signals (X1)
24 Ignore reference mark signals (X2)
6 Display the position of encoder X1
7 Display the position of encoder X2
8 Display sum X1 + X2
9 Display difference X1 - X2
22 Pulse: Transmit measured value
23 Contact: Transmit measured value
25 Enable or disable REF mode
(current REF status is changed)
5, 12, 13 Do not assign
11, 20, 21 Vacant
Switching Inputs and Outputs EXT (X41)
Danger to internal components!
Voltage sources for external circuitry must conform
to the recommendations in EN 50 178 for low-
voltage electrical separation. Connect inductive
loads only with a quenching diode parallel to the
inductance.
Only use shielded cable!
Connect the shield to the connector housing.
Outputs at D-sub connection EXT (X41)
Pin Function
14 Display value is zero
15 Measured value
³ trigger limit A1 (P62)
16 Measured value
³ trigger limit A2 (P63)
17 Measured value < lower sorting limit (P18)
18 Measured value > upper sorting limit (P19)
19 Error (see “Error Messages”)