HEIDENHAIN ND 280 Installationsanleitung Seite 20

Installation Instructions en
4.5 Connecting computers and printers
The unit provides two serial interfaces for bidirectional data
communication:
X31: 9-pin RS-232-C/V.24 D-sub interface
X32: USB interface (UART)
You can use only one serial interface for data
transfer at a time.
Software updates can only be transferred to the
unit via the USB interface X32.
Connecting computers or printers via the RS-232-C/V.24
interface
A computer or a printer with a serial RS-232-C/V.24 data
interface can be connected to connection X31.
Use a serial cable (see "Accessories", page 19) to
connect the COM port of the computer or printer to
connection X31. For information on the location of the
connections, see "Rear panel", page 20.
Make sure the cable is securely attached. Do not
overtighten the connector screws.
RS-232-C/V.24: Pin layout X31
The wiring of the connecting cable depends
on the device being connected (see technical
documentation for external device).
Pin layout:
With handshake: See Figure 1 in "I" in the Appendix.
Without handshake: See Figure 2 in "I" in the Appendix.
For signal level, see "Specifications", page 24.
Connecting a computer via USB
A computer can be connected to connection X32 via the
USB interface.
Connect the USB port of the computer to connection
X32 using a USB cable (see "Accessories", page 19). For
information on the location of the connections, see "Rear
panel", page 20.
USB Type B (UART): Pin layout X32
For pin layout, see "J" in the Appendix.
22
4.6 Only ND 287: Wiring of switching inputs
and outputs
The wiring of the switching inputs and outputs depends
on the customer's peripherals (see manufacturer's
documentation).
Personnel requirement
Depending on the peripherals to be connected,
the connection work may need to be carried out
by an electrical specialist.
Example: SELV exceeded.
Connection X41
Functional assignment of the 25-pin D-sub connection
(I = switching input, O = switching output):
Pin Function
1 0 V
2 I Reset, clear error message
3 I Set axis / coupled axes to value for datum point
4 I Ignore reference mark signals (X1)
5 I Start series of measurements / f(X1,X2) display
6 I Externally select display value for series of measure-
ments / X1 display
7 I Display minimum value of series of measurements /
X2 display
8 I Display maximum value of series of measurements /
X1+X2 display
9 I Display difference Max-Min of series of measure-
ments / X1-X2 display
10 0 V
11 Vacant
12 Do not assign
13 Do not assign
14 O Display value is zero
15 O Measured value is greater than or equal to trigger li-
mit A1
16 O Measured value is greater than or equal to trigger li-
mit A2
17 O Measured value is less than the lower sorting limit
18 O Measured value is greater than the upper sorting li-
mit
19 O Error
20 Vacant
21 Vacant
22 I Pulse: Measured value output,
see Figure 1 in "L" in the Appendix
ND 200