HS452, HS652 Rotary Vane Pumps - Agilent Technologies
HS452, HS652 Rotary Vane Pumps - Agilent Technologies
HS452, HS652 Rotary Vane Pumps - Agilent Technologies
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5 Technical Information<br />
RS 232/RS 485 Communication Description<br />
RS 232/RS 485 Communication Description<br />
Both the RS 232 and the RS 485 interfaces are available on the<br />
connector J2<br />
J2 – Serial Port<br />
Tab. 6<br />
PIN N.<br />
SIGNAL NAME<br />
1 + 5 V out<br />
2 TX (RS232)<br />
3 RX (RS232)<br />
4 Spare<br />
5 GND<br />
6 A+ (RS485)<br />
7 Spare<br />
8 B- (RS485)<br />
9 Spare<br />
The communication protocol is the same (see the structure below),<br />
but only the RS 485 manages the address field. Therefore to enable<br />
the RS 485 is necessary to select the type of communication as well<br />
as the device address by means of the T-plus software.<br />
NOTE<br />
The RS-485 is a 2-wires (gnd optional) half-duplex communication link.<br />
106/126 <strong>HS452</strong>, <strong>HS652</strong> <strong>Rotary</strong> <strong>Vane</strong> <strong>Pumps</strong> User Manual / 87-900-978-01 (L)
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