HORNER HE693SNP CBL Installation and user guide

1DESCRIPTION
The HE693SNPCBL SNP to RS-232 Adapter is equipped with two ports. The 15-pin SNP port plugs directly into the
PLC Programmer Port on the CPU rack power supply. Power to the SNP Adapter is supplied directly from the
programming port (maximum 100mA@5VDC). The 9-pin RS-232 port connects to any RS-232 device.
1.87”
(47.5mm)
1.70"
(43.2mm)
6'
(1.83m)
001ACC005
RX TX
Figure 1 –SNPCBL Adapter
The SNPCBL has a 90°cable exit for simplified cable routing. The SNPCBL adapter head has a RX (Receive) LED
and a TX (Transmit) LED; both LEDs are green when active.
The pin-out for the SNPCBL Adapter serial ports is provided as follows. The direction indicated is with respect to the
adapter. The following pin-outs are chosen to allow direct connection (using a straight through or 1 to 1 cable) to the
IBM PC/AT. Nearly ALL of the IBM compatible computers equipped with a 9-pin RS232 port provide a pin-out
compatible with that shown in Table 2.
Table 1 –Fifteen-Pin Port
Pin # Signal Name Direction
1,3,7 [0V] Ground N/A
2,5 [+5V] VCC N/A
4No Connection N/A
6[CTS-] Clear to Send Input
8[RTS+] Request to
Send Output
9,10 [TXD-] Transmit Data Output
11 [TXD+] Transmit Data Output
12 [RXD-] Receive Data Input
13 [RXD+] Receive Data Input
14 [CTS+] Clear to Send Input
15 [RTS-] Request to Send Output
06 July 2004MAN0344-03
SNP to RS
-
232 Adapter
Product Specifications
and Installation Data
Table 2 –Nine-Pin Port
Pin #Signal Name Direction
1* [DCD] Data Carrier
Detect Input
2[TXD] Transmit Data Output
3[RXD] Receive Data Input
5[GND] Ground N/A
6* [DSR] Data Set Ready Input
7[CTS] Clear to Send Input
8[RTS] Request to Send Output
9* [RI] Ring Indicate Input
* Shorted together and pulled high with 1K ohm
pull-up resistor.
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2WIRING
2.1 Cable Diagrams
When connecting the SNP adapter to IBM compatible PCs with hardware handshaking, the following
cable interfaces are used.
Figure 2
Figure 3
Figure 4
CBL
CBL
CBL
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MAN0344-03 06 JUL 2004PAGE 3
2.2 XT Adapter Pin-out
The XT Adapter can be used on an IBM compatible PC, which has a 25-pin RS232 port. The internal
wiring of the XT Adapter is in the following figure.
Figure 5
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NOTES
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