SST SST-ASI-SLC, Руководство пользователя

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SST-ASI-SLC User’s Guide
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5.2 Wiring
5.2.1 AS-i Wiring
The scanner module uses two 4-pin Phoenix connectors, one for each AS-i
channel. Pins 1 and 3 and pins 2 and 4 are internally connected for user
convenience.
The cable type is Siemens P/N 3RX9010-0AA00. To be able to scan I/O, you
must have a certified AS-i power supply connected to the scanner.
If the network is daisy-chained through the scanner, as in the above diagram,
the maximum pass-through current is 6 Amps. If the scanner is connected in a
mode other than daisy chain, this limit is eliminated.
If you accidentally reverse the polarity on the AS-i line, it will not work but it
should not be damaged.
The SST-ASI-SLC has been tested with power sources from P Fuchs
(Type VAN-115/230AC-K8) and Siemens (types 3RX9303-0AA00 and
3RX9301-0AA00).
5.2.2 Serial Port Wiring
Before you can scan I/O, you must configure your slaves using either an
Addressing Unit or the scanner serial port. Since pins 2 and 3 of the serial
port are wired the same as a PC 9-pin COM port, the serial cable for a
standard PC COM port must have lines 2 and 3 swapped. The serial
connection doesn’t require any handshaking. The serial cable provided with
the SST-ASI-SLC takes care of the pin swapping. Use this cable to connect
your computer to the scanner module or make and use a cable that matches
the following diagram. (The provided cable has additional connections that
are not required).
For an example of configuring slaves using a communications software
package over the serial port, refer to section 6.5.
1
2
3
4
5 1
2
3
4
5
6
7
8
9 6
7
8
9
to AS-i scanner
module to AS-i network
to AS-i power
supply