Part 1 specification, Caution – IAI America REXT User Manual
Page 53
Part 1 Specification
Chapter 3 Gateway R unit
35
Part 1 Specification
(3) Profibus (RGW-PR)
RGW-PR connector: D-Sub, 9-pin connector (female)
Profibus communication connector
Pin number
Signal name
Explanation
1
NC
Not connected
2
NC
Not connected
3
B-Line
Communication line B (RS485)
4
RTS
Send request
5
GND
Signal ground (isolated)
6
+5 V
+5-V output (isolated)
7
NC
Not connected
8
A-Line
Communication line A (RS485)
9
NC
Not connected
Housing
Shield
Cable shield
This signal is connected to the enclosure.
Caution
(1) The mating (cable-end) connector (D-sub, 9-pin connector) is not supplied.
(2) The RGW-PR does not have terminal resistor setting switches. If the RGW-PR is connected at the end of a network,
connect a terminal resistor to the network connector or use a connector with terminal resistor, as specified below.
z
Connecting a terminal resistor
z
Profibus connector (with terminal resistor)
(Example) SUBCON-PLUS-PROFIB/AX/SC (Phoenix Contact)
For details, refer to the operation manual of the master unit.
Female connector
on RGW-PR end
Male connector on network
end (view from the side
opposite the insertion side)
Network wiring
-53-