PRECITEC CHRocodile C, Руководство по эксплуатации, Страница: 19 / 63

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The interface contains the connection points for the synchronization and RS422 or RS232 serial
communication.
The serial RS232/RS422 is interfaced on the multipoint connector interface (9 pins). Serial
communication are mostly used for sending command as a hyper-terminal, and can also support data
transfer. The maximum transfer rate RS232/RS422 is 1843200 Bd.
PIN SIGNAL
1 RS232 TX / RS422 TX-
2 RS232 RTS / RS422 TX+
3 RS232 CTS / RS422 RX-
4 RS232 RX / RS422 RX+
5 GND
6 Sync In
7 Sync Out
8 Reserve
9 GND
Table 2.2: Multipoint connector PIN / Signal correspondence
Signal Function Description
RS422
RS422
Interface RS422 (differential signaling) Interface, internally terminated,
no handshaking
RS232 RS232
interface RS232 interface, RTS/CTS handshaking possible
Sync In Sync. Input Positive slope from 0V to 5-24V causes according to the
settings of the sensor:

starts the continuous measurement, if the command
wait for trigger was received first (TRG Command)

starts the single measurement in mode trigger each
(TRE Command)
When in TRW mode, a positive slope starts continuous
measuring, a negative slope stops the measurement
the input has an internal 10 kΩ pullup-resistor to 5 V.
Sync Out Sync. Output Sync Output
Positive slope 0 V to 5 V with the start of each measurement.
Table 2.3: Interface