Quartech 2800 Manual - page 13
2800 & 2900 Series PLC Drivers
Page 13
DM2829_PLC Revision 2
Modicon Modbus 984
Quartech Part Number: 2116-10
Modbus 984
2800/2900
9 Pin Male D-Type
15 Pin Female D-Type
RXD
2 <
)))))))))))))))))))))))
< 2
TXD
TXD
3 <
)))))))))))))))))))))))
< 3
RXD
SC
5 <
)))))))))))))))))))))))
< 7
SC
DTR
4 <
))),
+)))))
< 4
RTS
DSR
6 <
)))-
.)))))
< 5
CTS
RTS
7 <
))),
Drain Wire
))))
< 1
FG
CTS
8 <
)))-
Modicon Micro
Quartech Part Number: 2151-10
Micro
2800/2900
8 Pin RJ485
15 Pin Female D-Type
RXD
4 <
)))))))))))))))))))))))
< 2
TXD
TXD
3 <
)))))))))))))))))))))))
< 3
RXD
SC
5 <
)))))))))))))))))))))))
< 7
SC
RTS
6 <
))),
+)))))
< 4
RTS
CTS
7 <
)))-
.)))))
< 5
CTS
Drain Wire
))))
< 1
FG
Modicon MODBUS
The Modbus PLC interface uses RS-232 signal levels and is intended for point to point communications, i.e., only a
single peripheral device may be connected to the MODBUS port.
ScreenMaker 2000 Port setup:
Baud rate: 9600 bps or 19200 bps
PLC Address: 1 through 247
Interface type: RS-232 or RS-485
Command Word Address: Output Coil (0xxxx), one word
Screen Trigger Address: Output Register (4xxxx), two contiguous words
Byte format: 8 data bits, 1 stop bit, even parity, RTU protocol.
The following schematic shows the cable connections required between the OIT and various MODBUS ports. These
cables are available from Quartech in a standard length of ten feet. Cables up to fifty feet in length may be ordered.
NOTES:
Up to four OITs can be connected to a single Modbus port using the Quartech Model 8517 Multiplexer